{"id":3408,"date":"2026-08-07T06:50:00","date_gmt":"2026-08-07T06:50:00","guid":{"rendered":"https:\/\/am-printing.com\/?p=3408"},"modified":"2026-07-23T07:00:31","modified_gmt":"2026-07-23T07:00:31","slug":"why-choose-4340-alloy-steel-powder-for-high-strength-am-parts","status":"publish","type":"post","link":"https:\/\/am-printing.com\/ko\/why-choose-4340-alloy-steel-powder-for-high-strength-am-parts\/","title":{"rendered":"\uace0\uac15\ub3c4 \uc801\uce35 \uc81c\uc870(AM) \ubd80\ud488\uc5d0 4340 \ud569\uae08\uac15 \ubd84\ub9d0\uc744 \uc120\ud0dd\ud574\uc57c \ud558\ub294 \uc774\uc720\ub294 \ubb34\uc5c7\uc77c\uae4c\uc694?"},"content":{"rendered":"

\uac04\ub2e8\ud55c \ub2f5\ubcc0<\/h2>\n\n\n\n

4340 \ud569\uae08\uac15 \ubd84\ub9d0<\/strong> \uc774 \uc18c\uc7ac\ub294 \uc124\uacc4\uc790\uac00 \uae4c\ub2e4\ub85c\uc6b4 \ubd80\ud488\uc5d0 \ub300\ud574 \ub192\uc740 \uacbd\ud654\uc131, \uc6b0\uc218\ud55c \uc5f4\ucc98\ub9ac \ud6c4 \uc131\ub2a5, \uadf8\ub9ac\uace0 \uc2e0\ub8b0\ud560 \uc218 \uc788\ub294 \uc778\uc131\uc744 \ud544\uc694\ub85c \ud560 \ub54c \uae08\uc18d \uc801\uce35 \uc81c\uc870\uc5d0 \uc0ac\uc6a9\ub418\ub294 \ub2c8\ucf08-\ud06c\ub86c-\ubab0\ub9ac\ube0c\ub374 \uc800\ud569\uae08\uac15 \uc6d0\ub8cc\uc785\ub2c8\ub2e4. \uc774 \uc18c\uc7ac\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \ud070 \ud558\uc911\uc774\ub098 \ucda9\uaca9\uc744 \uacac\ub38c\uc57c \ud558\ub294 \uae30\uc5b4, \uc0e4\ud504\ud2b8, \uacf5\uad6c, \ud56d\uacf5\uc6b0\uc8fc \ubd80\ud488\uacfc \uac19\uc740 \uace0\uac15\ub3c4 \uc801\uce35 \uc81c\uc870(AM) \ubd80\ud488\uc5d0 \uc801\ud569\ud55c \uc120\ud0dd\uc785\ub2c8\ub2e4. \ub2e8\uc21c\ud55c \ud0c4\uc18c\uac15\uc5d0 \ube44\ud574, \ud2b9\ud788 \ub2f4\uae08\uc9c8 \ubc0f \ud15c\ud37c\ub9c1 \uacf5\uc815 \ud6c4 \uac15\ub3c4, \uc778\uc131, \ub2e8\uba74 \uacbd\ud654 \uac04\uc758 \uade0\ud615\uc774 \ub354 \uc6b0\uc218\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

4340 \ud569\uae08\uac15 \ubd84\ub9d0\uc774\ub780 \ubb34\uc5c7\uc778\uac00<\/h2>\n\n\n\n

4340 \ud569\uae08\uac15 \ubd84\ub9d0\uc740 AISI\/SAE 4340\uc758 \ubd84\ub9d0 \ud615\ud0dc\ub85c, \ub192\uc740 \uc751\ub825\uc774 \uac00\ud574\uc9c0\ub294 \uacf5\ud559 \ubd80\ud488\uc5d0 \ub110\ub9ac \uc0ac\uc6a9\ub418\ub294 \uc911\ud0c4\uc18c \ub2c8\ucf08-\ud06c\ub86c-\ubab0\ub9ac\ube0c\ub374\uac15\uc785\ub2c8\ub2e4. \uae30\uc874 \uc81c\uc870 \uacf5\uc815\uc5d0\uc11c 4340\uc740 \uc804\uccb4 \uacbd\ud654 \ub2a5\ub825\uacfc \uc6b0\uc218\ud55c \ub0b4\ucda9\uaca9\uc131\uc744 \uacb8\ube44\ud558\uace0 \uc788\uc5b4 \uc624\ub7ab\ub3d9\uc548 \ud56d\uacf5\uae30 \ub79c\ub529 \uae30\uc5b4 \ubd80\ud488, \ubcc0\uc18d\uae30 \ubd80\ud488, \ud06c\ub7ad\ud06c\uc0e4\ud504\ud2b8, \ucee4\ub125\ud305\ub85c\ub4dc \ubc0f \uace0\uac15\ub3c4 \ud328\uc2a4\ub108\uc5d0 \uc0ac\uc6a9\ub418\uc5b4 \uc654\uc2b5\ub2c8\ub2e4. \uc801\uce35 \uc81c\uc870 \ubd84\uc57c\uc5d0\uc11c\ub3c4 \ub3d9\uc77c\ud55c \uae08\uc18d\ud559\uc801 \uc6d0\ub9ac\uac00 \uc801\uc6a9\ub429\ub2c8\ub2e4. \uc0ac\uc6a9\uc790\ub4e4\uc740 \uc644\uc131\ub41c \ubd80\ud488\uc774 \uac15\ub3c4\uac00 \ub192\uace0, \uc5f4\ucc98\ub9ac\uac00 \uac00\ub2a5\ud558\uba70, \uad6c\uc870\uc801\uc73c\ub85c \uc2e0\ub8b0\ud560 \uc218 \uc788\uc5b4\uc57c \ud560 \ub54c \uc774 \uc7ac\uc9c8\uc744 \uc120\ud0dd\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\uac15\ucca0 \ubd84\ub958 \uccb4\uacc4\uc5d0\uc11c 4340\uc740 \ud754\ud788 \ub2e4\uc74c\uacfc \uac19\uc774 \ubb18\uc0ac\ub418\ub294 \uacc4\uc5f4\uc5d0 \uc18d\ud569\ub2c8\ub2e4. \ucd08\uace0\uac15\ub3c4 \uc800\ud569\uae08\uac15<\/strong> \uacbd\ub3c4\uc640 \uac15\ub3c4\uac00 \ub192\uc740 \uc218\uc900\uc73c\ub85c \uac00\uacf5\ub418\uc5c8\uc744 \ub54c\uc785\ub2c8\ub2e4. \uc774 \uac15\uc885\uc740 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15, \uacf5\uad6c\uac15, \ub9c8\ub77c\uc9d5\uac15\uc740 \uc544\ub2c8\uc9c0\ub9cc, \uc77c\ubd80 \uc6a9\ub3c4\uc5d0\uc11c\ub294 \uc774\ub7ec\ud55c \uac15\uc885\ub4e4\uacfc \uc911\ubcf5\ub418\ub294 \ubd80\ubd84\uc774 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \uac15\uc885\uc758 \ud2b9\uc9d5\uc740 \uc801\ub2f9\ud55c \ud0c4\uc18c \ud568\ub7c9\uc5d0 \ub2c8\ucf08, \ud06c\ub86c, \ubab0\ub9ac\ube0c\ub374\uc744 \ucca8\uac00\ud558\uc5ec \uc5f4\ucc98\ub9ac \ud6c4 \ub6f0\uc5b4\ub09c \uacbd\ud654\uc131\uacfc \uc720\uc6a9\ud55c \uc778\uc131\uc744 \ub3d9\uc2dc\uc5d0 \ud655\ubcf4\ud55c\ub2e4\ub294 \uc810\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc801\uce35 \uc81c\uc870\uc758 \uacbd\uc6b0, 4340\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \ub2e4\uc74c\uacfc \uac19\uc740 \ud615\ud0dc\ub85c \uacf5\uae09\ub429\ub2c8\ub2e4. \uad6c\ud615 AM \ubd84\ub9d0<\/strong> \ub808\uc774\uc800 \ud30c\uc6b0\ub354 \ubca0\ub4dc \uc735\ud569, \uc9c0\ud5a5\uc131 \uc5d0\ub108\uc9c0 \uc99d\ucc29, \ubc14\uc778\ub354 \uc81c\ud305 \ub610\ub294 \uad00\ub828 \ubd84\ub9d0 \uae30\ubc18 \uacf5\uc815\uc5d0 \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \ubd84\ub9d0 \ud615\ud0dc\ub97c \ud65c\uc6a9\ud568\uc73c\ub85c\uc368, \ud2b9\ud788 \ub0b4\ubd80 \uad6c\uc870, \uc9c8\ub7c9 \ucd5c\uc801\ud654, \uc900\uc644\uc131\ud615 \ube14\ub7ad\ud06c \ub610\ub294 \uc218\ub9ac \uac00\ub2a5\ud55c \uace0\ubd80\uac00\uac00\uce58 \ubd80\ud488\uc774 \ud544\uc694\ud55c \uacbd\uc6b0, \ube4c\ub81b\uc73c\ub85c \uac00\uacf5\ud558\uae30\uc5d0\ub294 \ube44\uc6a9\uc774 \ub9ce\uc774 \ub4dc\ub294 \ubcf5\uc7a1\ud55c \ud615\uc0c1\uc758 \ud569\uae08\uc744 \uc81c\uc791\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. [\uc815\uc758\ub41c] \uae08\uc18d \uc801\uce35 \uc81c\uc870(AM) \uc6a9\uc5b4\uc5d0 \ub530\ub974\uba74 ISO\/ASTM 52900 \uc6a9\uc5b4<\/a>, \uc774 \uc6d0\ub8cc\ub294 \ud30c\uc6b0\ub354 \ubca0\ub4dc \uc735\ud569 \ubc0f \uc9c0\ud5a5\uc131 \uc5d0\ub108\uc9c0 \uc99d\ucc29 \uacf5\uc815\uc5d0 \uc0ac\uc6a9\ub418\ub294 \uad11\ubc94\uc704\ud55c \uae08\uc18d \ubd84\ub9d0 \ubc94\uc8fc\uc5d0 \uc18d\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\"1350
<\/figcaption><\/figure>\n\n\n\n

\uc800\ud569\uae08\uac15 \uacc4\uc5f4\uc758 4340 \ud569\uae08\uac15 \ubd84\ub9d0<\/h3>\n\n\n\n

4140, 4130 \ub610\ub294 8620\uacfc \ube44\uad50\ud560 \ub54c, 4340\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \uace0\ubd80\ud558 \uc6a9\ub3c4 \ubd80\ud488\uc758 \uc131\ub2a5 \ub4f1\uae09\uc5d0\uc11c \ub354 \ub192\uc740 \uc704\uce58\uc5d0 \uc788\uc2b5\ub2c8\ub2e4. \ub2c8\ucf08\uc740 \uc778\uc131\uc744 \ud5a5\uc0c1\uc2dc\ud0a4\uace0, \ud06c\ub86c\uc740 \uacbd\ud654\uc131\uacfc \ub0b4\ub9c8\ubaa8\uc131\uc744 \ub192\uc774\uba70, \ubab0\ub9ac\ube0c\ub374\uc740 \uac15\ub3c4 \uc720\uc9c0\uc5d0 \ub3c4\uc6c0\uc744 \uc8fc\uba74\uc11c \ud15c\ud37c \ucde8\uc131 \ubbfc\uac10\ub3c4\ub97c \uc904\uc5ec\uc90d\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uc870\ud569 \ub355\ubd84\uc5d0 4340\uc740 \ub192\uc740 \uacbd\ud654\uc131<\/strong>, \uc989 \ub354 \ud06c\uac70\ub098 \ubcf5\uc7a1\ud55c \ub2e8\uba74\uc758 \uacbd\uc6b0, \ub2f4\uae08\uc9c8 \ubc0f \ud15c\ud37c\ub9c1 \ud6c4 \ud45c\uba74\uc5d0\uc11c \ub354 \uba40\ub9ac \ub5a8\uc5b4\uc9c4 \ubd80\ubd84\uc5d0\uc11c\ub3c4 \uc720\uc6a9\ud55c \ud2b9\uc131\uc744 \ub098\ud0c0\ub0bc \uc218 \uc788\uc74c\uc744 \uc758\ubbf8\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc774 3D \ud504\ub9b0\ud305 \ubd84\ub9d0\uc774 \uc874\uc7ac\ud558\ub294 \uc774\uc720<\/h3>\n\n\n\n

\uc801\uce35 \uc81c\uc870(AM)\uc5d0\uc11c 4340 \uac15\uc885\uc744 \uc120\ud0dd\ud574\uc57c \ud560 \uac00\uc7a5 \uac15\ub825\ud55c \uc774\uc720\ub294 \ud615\uc0c1\uacfc \uc131\ub2a5\uc774 \ub3d9\uc2dc\uc5d0 \uc911\uc694\ud560 \ub54c\uc785\ub2c8\ub2e4. \ub2e8\uc21c\ud55c \uc0e4\ud504\ud2b8\ub098 \ube14\ub85d\uc758 \uacbd\uc6b0 \uae30\uc874\uc758 \ub2e8\uc870 \ubc0f \uae30\uacc4 \uac00\uacf5 \ubc29\uc2dd\uc774 \uc5ec\uc804\ud788 \ud6a8\uc728\uc801\uc774\uc9c0\ub9cc, \ubd80\ud488\uc5d0 \ub0b4\ubd80 \uc624\uc77c \ud1b5\ub85c\uac00 \ud544\uc694\ud558\uac70\ub098, \uacbd\ub7c9 \uc6f9, \uc218\ub9ac\uc6a9 \ud615\uc0c1, \uc124\uacc4 \ud1b5\ud569\uc774 \uc694\uad6c\ub418\uac70\ub098, \uae08\ud615 \uc81c\uc791\uc774 \ud0c0\ub2f9\ud574\uc9c0\uae30 \uc804\uc5d0 \uc2e0\uc18d\ud55c \ubc18\ubcf5 \uc124\uacc4\uac00 \ud544\uc694\ud55c \uacbd\uc6b0\uc5d0\ub294 AM\uc774 \ub9e4\ub825\uc801\uc778 \ub300\uc548\uc774 \ub429\ub2c8\ub2e4. \uc774 \ub4f1\uae09\uc744 \uc720\uc0ac\ud55c \ucca0\uacc4 \uc18c\uc7ac \uc635\uc158\uacfc \ube44\uad50\ud558\ub294 \uc5d4\uc9c0\ub2c8\uc5b4\ub4e4\uc740 \ub300\uac1c \ub354 \uad11\ubc94\uc704\ud55c \uad00\uc810\uc5d0\uc11c \uc811\uadfc\ud558\uae30 \uc2dc\uc791\ud569\ub2c8\ub2e4. \ucca0 \uae30\ubc18 \ud569\uae08 \ubd84\ub9d0 \uce74\ud0c8\ub85c\uadf8<\/a> \uc800\ud569\uae08\uac15, \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15 \ub610\ub294 \ub2e4\ub978 \uc7ac\ub8cc \uccb4\uacc4 \uc911 \uc5b4\ub290 \uac83\uc774 \ud558\uc911 \uc870\uac74\uc5d0 \ub354 \uc801\ud569\ud55c\uc9c0 \uacb0\uc815\ud558\uae30 \uc704\ud574.<\/p>\n\n\n\n

\ub2e4\ub978 AM \uac15\uc7ac\uc640\uc758 \ucc28\ubcc4\ud654 \ud2b9\uc9d5<\/h3>\n\n\n\n

\ub9c8\ub974\ud150\uc0ac\uc774\ud2b8\uacc4 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uacfc \ub2ec\ub9ac, 4340\uc740 \ub0b4\uc2dd\uc131\uc744 \uc8fc\uc694 \ud2b9\uc131\uc73c\ub85c \uc0bc\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \ub9c8\ub77c\uc9d5\uac15\uacfc \ub2ec\ub9ac, \uc774 \uac15\uc885\uc740 \uadf9\uc800\ud0c4\uc18c \uce68\uc804 \uacbd\ud654 \ubc29\uc2dd\uc744 \ucc44\ud0dd\ud558\uc9c0\ub3c4 \uc54a\uc2b5\ub2c8\ub2e4. \uc774 \uac15\uc885\uc758 \uac00\uce58\ub294 \ubcf4\ub2e4 \uc804\ud1b5\uc801\uc774\uba74\uc11c\ub3c4 \uc5ec\uc804\ud788 \ub9e4\uc6b0 \uc911\uc694\ud55c\ub370, \uacac\uace0\ud55c Ni-Cr-Mo \ud654\ud559 \uc870\uc131, \ud3ed\ub113\uc740 \uc5f4\ucc98\ub9ac \uc720\uc5f0\uc131, \uadf8\ub9ac\uace0 \uc5f4\ucc98\ub9ac \ubc18\uc751<\/strong> \ub2e8\uba74 \ud06c\uae30\uc640 \uc791\ub3d9 \uc8fc\uae30\uc5d0 \ub530\ub77c \ub0b4\uad6c\uc131, \ub0b4\ub9c8\ubaa8\uc131 \ub610\ub294 \ucd5c\ub300 \uac15\ub3c4\uc5d0 \ub9de\ucdb0 \uc870\uc815\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\n

4340\uc740 \ub0b4\uc2dd\uc131\ubcf4\ub2e4\ub294 \uc2e4\uc6a9\uc801\uc778 \uc778\uc131\uc744 \uc720\uc9c0\ud558\uba74\uc11c\ub3c4 \ub192\uc740 \uac15\ub3c4\ub97c \uc5bb\uc744 \uc218 \uc788\ub2e4\ub294 \uc810\uc5d0\uc11c \uc120\ud0dd\ub429\ub2c8\ub2e4.<\/p>\n<\/blockquote>\n\n\n\n

\ud654\ud559 \uc131\ubd84<\/h2>\n\n\n\n

4340 \ud569\uae08\uac15 \ubd84\ub9d0\uc758 \ud654\ud559 \uc131\ubd84\uc740 \ud0c4\uc18c, \ub2c8\ucf08, \ud06c\ub86c, \ubab0\ub9ac\ube0c\ub374, \ub9dd\uac04, \uc2e4\ub9ac\ucf58 \uac04\uc758 \uc801\uc808\ud55c \uade0\ud615\uc744 \uc720\uc9c0\ud558\ub294 \ub370 \ud569\uae08\uc758 \uac70\ub3d9\uc774 \uc88c\uc6b0\ub418\uae30 \ub54c\ubb38\uc5d0 \uc5c4\uaca9\ud558\uac8c \uad00\ub9ac\ub429\ub2c8\ub2e4. \ubd84\ub9d0 \uc81c\uc870\uc5c5\uccb4\ub4e4\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \ud45c\uc900 4340 \ub2e8\uc870\uac15 \uc870\uc131 \ubc94\uc704\ub97c \ubaa9\ud45c\ub85c \uc0bc\ub294 \ub3d9\uc2dc\uc5d0, \uc801\uce35 \uc81c\uc870 \uacfc\uc815\uc5d0\uc11c \uc720\ub3d9\uc131, \uc6a9\uc735 \uac70\ub3d9 \ubc0f \ucd5c\uc885 \uae30\uacc4\uc801 \uc77c\uad00\uc131\uc5d0 \uc601\ud5a5\uc744 \ubbf8\uce60 \uc218 \uc788\ub294 \uc0b0\uc18c, \uc9c8\uc18c \ubc0f \ubbf8\ub7c9 \ubd88\uc21c\ubb3c\ub3c4 \ubaa8\ub2c8\ud130\ub9c1\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc694\uc18c<\/th>\ub300\ud45c\uc801\uc778 \uad6c\uc131 (wt.%)<\/th>\ud45c\uc900 \ubc94\uc704 \/ \ud55c\uacc4<\/th>\uc57c\uae08\ud559\uc801 \uc5ed\ud560<\/th><\/tr><\/thead>
\ud0c4\uc18c(C)<\/td>0.40<\/td>0.38\u20130.43<\/td>\ub9c8\ub974\ud150\uc0ac\uc774\ud2b8 \ud615\uc131\uc744 \ucd09\uc9c4\ud558\uba70, \ub2f4\uae08\uc9c8 \ubc0f \ud15c\ud37c\ub9c1 \ud6c4 \uacbd\ub3c4\uc640 \uac15\ub3c4\ub97c \ub192\uc785\ub2c8\ub2e4.<\/td><\/tr>
\ub9dd\uac04(Mn)<\/td>0.75<\/td>0.60\u20130.80<\/td>\uacbd\ud654\uc131\uc744 \ud5a5\uc0c1\uc2dc\ud0a4\uace0 \uc6a9\uc735 \uacfc\uc815 \uc911 \ud0c8\uc0b0 \uc791\uc6a9\uc744 \ub3d5\uc2b5\ub2c8\ub2e4<\/td><\/tr>
\uc2e4\ub9ac\ucf58(Si)<\/td>0.25<\/td>0.15\u20130.30<\/td>\ud0c8\uc0b0\uc81c \uc5ed\ud560\uc744 \ud558\uba70, \uac15\ub3c4\ub97c \ub2e4\uc18c \ub192\uc5ec\uc90d\ub2c8\ub2e4<\/td><\/tr>
\ub2c8\ucf08(Ni)<\/td>1.80<\/td>1.65\u20132.00<\/td>\uc778\uc131, \uacbd\ud654\uc131 \ubc0f \ud53c\ub85c \uc800\ud56d\uc131\uc744 \ud5a5\uc0c1\uc2dc\ud0b5\ub2c8\ub2e4<\/td><\/tr>
\ud06c\ub86c(Cr)<\/td>0.80<\/td>0.70\u20130.90<\/td>\uacbd\ud654\uc131, \ub0b4\ub9c8\ubaa8\uc131 \ubc0f \ud15c\ud37c\ub9c1 \uc131\ub2a5\uc744 \ud5a5\uc0c1\uc2dc\ud0b5\ub2c8\ub2e4<\/td><\/tr>
\ubab0\ub9ac\ube0c\ub374(Mo)<\/td>0.25<\/td>0.20\u20130.30<\/td>\uacbd\ub3c4 \uc720\uc9c0\uc5d0 \ub3c4\uc6c0\uc744 \uc8fc\uace0, \uc5f0\ud654 \ud604\uc0c1\uc744 \ubc29\uc9c0\ud558\uba70, \ud15c\ud37c \ucde8\uc131 \uacbd\ud5a5\uc744 \uc904\uc5ec\uc90d\ub2c8\ub2e4.<\/td><\/tr>
\uc778(P)<\/td>0.015<\/td>0.035 (\ucd5c\ub300)<\/td>\uc870\uc808\ub41c \ubd88\uc21c\ubb3c; \uacfc\ub2e4\ud558\uba74 \uc778\uc131\uc5d0 \ud574\ub97c \ub07c\uce5c\ub2e4<\/td><\/tr>
\uc720\ud669(S)<\/td>0.010<\/td>0.040 (\ucd5c\ub300)<\/td>\ud1b5\uc81c\ub41c \ubd88\uc21c\ubb3c; \uacfc\ub2e4\ud560 \uacbd\uc6b0 \uc5f0\uc131\uacfc \ud53c\ub85c \uac15\ub3c4\ub97c \uc800\ud558\uc2dc\ud0ac \uc218 \uc788\uc74c<\/td><\/tr>
\ucca0(Fe)<\/td>\uc794\uc561<\/td>\uc794\uc561<\/td>\ube44\uae08\uc18d \ub9e4\ud2b8\ub9ad\uc2a4<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

4340 \ud569\uae08\uac15 \ubd84\ub9d0\uc758 \ud0c4\uc18c \ud568\ub7c9 \ubc0f \ub9c8\ub974\ud150\uc0ac\uc774\ud2b8 \ud615\uc131 \uacbd\ud5a5<\/h3>\n\n\n\n

\ud0c4\uc18c\ub294 \ud569\uae08\uc758 \ucd5c\uc885 \ud2b9\uc131 \ubc94\uc704\ub97c \uacb0\uc815\ud558\ub294 \ud575\uc2ec \uc694\uc18c\uc785\ub2c8\ub2e4. \uc57d 0.40 wt.%\uc758 \ud0c4\uc18c \ud568\ub7c9 \ub355\ubd84\uc5d0 4340\uc740 \ub2f4\uae08\uc9c8 \ud6c4 \ub192\uc740 \uacbd\ub3c4\uc640 \uac15\ub3c4\ub97c \ubc1c\ud718\ud560 \uc218 \uc788\uc744 \ubfd0\ub9cc \uc544\ub2c8\ub77c, \uc801\uc808\ud55c \ud15c\ud37c \ucc98\ub9ac\ub97c \uac70\uce58\uba74 \uac00\uacf5 \uac00\ub2a5\ud55c \uc778\uc131 \ubc94\uc704\ub3c4 \uc720\uc9c0\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc801\uce35 \uc81c\uc870(AM) \ubd80\ud488\uc758 \uacbd\uc6b0, \uc124\uacc4\uc790\ub4e4\uc774 \uc885\uc885 \uc81c\uc791 \ud6c4 \uc5f4\ucc98\ub9ac\ub97c \ud1b5\ud574 \uc81c\uc791 \uc9c1\ud6c4\uc758 \ubbf8\uc138\uad6c\uc870\ub97c \uc2e4\uc81c \uc0ac\uc6a9\uc5d0 \uc801\ud569\ud55c \uc0c1\ud0dc\ub85c \ubcc0\ud658\ud558\uae30 \ub54c\ubb38\uc5d0 \uc774\ub294 \uc911\uc694\ud55c \uc694\uc18c\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n

\ub2c8\ucf08, \ud06c\ub86c, \ubab0\ub9ac\ube0c\ub374\uc774 \uc911\uc694\ud55c \uc774\uc720<\/h3>\n\n\n\n

Ni-Cr-Mo\uc758 \uc870\ud569\uc774 4340\uac15\uc744 \ub2e8\uc21c\ud55c \uc911\ud0c4\uc18c\uac15\uacfc \ucc28\ubcc4\ud654\ud558\ub294 \uc694\uc18c\uc785\ub2c8\ub2e4. \ub2c8\ucf08\uc740 \ub178\uce58 \uc778\uc131\uacfc \ud53c\ub85c \uac15\ub3c4\ub97c \ud5a5\uc0c1\uc2dc\ud0a4\uace0, \ud06c\ub86c\uc740 \uacbd\ud654\uc131\uc744 \ub192\uc774\uba70 \ub0b4\ub9c8\ubaa8\uc131\uc744 \uac15\ud654\ud558\uba70, \ubab0\ub9ac\ube0c\ub374\uc740 \ud15c\ud37c\ub9c1 \ud6c4\uc5d0\ub3c4 \uac15\ub3c4\uac00 \uc720\uc9c0\ub418\ub3c4\ub85d \ub3d5\uc2b5\ub2c8\ub2e4. \uc774 \uc138 \uc6d0\uc18c\uac00 \uacb0\ud569\ub418\uc5b4 \uac15\ub3c4\uc640 \uc778\uc131\uc758 \uade0\ud615<\/strong> \uc774 \ub355\ubd84\uc5d0 4340\uc740 \uace0\ubd80\ud558 \uae30\uacc4 \uc2dc\uc2a4\ud15c\uc5d0\uc11c \uc5ec\uc804\ud788 \uc911\uc694\ud55c \uc5ed\ud560\uc744 \ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc801\uce35 \uc81c\uc870\uc6a9 \ubd84\ub9d0\uc758 \uc794\ub958 \uc81c\uc5b4<\/h3>\n\n\n\n

\ubd84\ub9d0 \ud615\ud0dc\uc758 \uacbd\uc6b0, \ud654\ud559\uc801 \uc81c\uc5b4\ub294 \uae30\uc874\uc758 \ubc8c\ud06c \ud569\uae08 \ubc94\uc704\ub97c \ub118\uc5b4\uc12d\ub2c8\ub2e4. \uc0b0\uc18c, \uc9c8\uc18c, \uc218\ubd84 \ub178\ucd9c \ubc0f \ube44\uae08\uc18d \ud568\uc720\ubb3c\uc740 \uac00\uacf5 \uacfc\uc815\uc5d0\uc11c \ub3c4\ud3ec\uc131, \uae30\uacf5\ub960 \ubc0f \uade0\uc5f4 \ubbfc\uac10\ub3c4\uc5d0 \uc601\ud5a5\uc744 \ubbf8\uce60 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uadf8\ub807\uae30 \ub54c\ubb38\uc5d0 \uc801\uce35 \uc81c\uc870(AM) \uc0ac\uc6a9\uc790\ub4e4\uc740 \ubd84\ub9d0 \ud2b9\uc131 \ubd84\uc11d\uc744 \ub2e8\uc21c\ud55c \uad6c\ub9e4 \uc0ac\uc591\uc774 \uc544\ub2cc \uacf5\uc815 \uc81c\uc5b4 \ubb38\uc81c\ub85c \uac04\uc8fc\ud558\uba70, \uc774\ub7ec\ud55c \uc811\uadfc \ubc29\uc2dd\uc740 \ub2e4\uc74c\uacfc \uc77c\uce58\ud569\ub2c8\ub2e4. NIST\uc758 \uc801\uce35 \uc81c\uc870 \uc5f0\uad6c<\/a>.<\/p>\n\n\n\n

\ubb3c\ub9ac\uc801 \ubc0f \uae30\uacc4\uc801 \ud2b9\uc131<\/h2>\n\n\n\n

4340 \ud569\uae08\uac15 \ubd84\ub9d0\uc744 \uc6d0\ub8cc\ub85c \ud55c \ubd80\ud488\uc758 \ubb3c\ub9ac\uc801 \ubc0f \uae30\uacc4\uc801 \ud2b9\uc131\uc740 \uc801\uce35 \ubc29\uc2dd\uacfc \ud6c4\ucc98\ub9ac\uc5d0 \ub530\ub77c \ud06c\uac8c \ub2ec\ub77c\uc9d1\ub2c8\ub2e4. \ub808\uc774\uc800 \ubd84\ub9d0 \ubca0\ub4dc \uc735\ud569 \uacf5\ubc95\uc73c\ub85c \uc81c\uc791\ub41c \uc18c\uc7ac\ub294 \ub2e8\uc870 \ubd09\uc7ac\uc640 \ub2ec\ub9ac \uc794\ub958 \uc751\ub825, \ubc29\ud5a5\uc131 \ubbf8\uc138\uad6c\uc870 \ubc0f \uacbd\ub3c4 \uc218\uc900\uc774 \ub2e4\ub97c \uc218 \uc788\uc73c\ub098, \uc751\ub825 \uc81c\uac70, \ub2f4\uae08\uc9c8 \ubc0f \ud15c\ud37c\ub9c1 \ub610\ub294 \uace0\uc628 \ub4f1\ubc29\uc131 \uc555\ucd95 \uacf5\uc815\uc744 \uac70\uce58\uba74 \ud569\uae08\uc758 \uc131\ub2a5\uc744 \ubcf4\ub2e4 \uc77c\ubc18\uc801\uc778 4340 \uc218\uc900\uc758 \uc131\ub2a5\uc73c\ub85c \ub04c\uc5b4\uc62c\ub9b4 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uc774\uc720\ub85c, \uc544\ub798\uc758 \uc218\uce58\ub294 \ubaa8\ub4e0 \uc801\uce35 \uc81c\uc870(AM) \uc7a5\ube44 \ubc0f \uc5f4\ucc98\ub9ac \uacf5\uc815\uc5d0 \ub300\ud574 \ubcf4\uc7a5\ub418\ub294 \ub2e8\uc77c \uc218\uce58\ub77c\uae30\ubcf4\ub2e4\ub294 \ud574\ub2f9 \ud569\uae08 \uc2dc\uc2a4\ud15c\uc758 \uc77c\ubc18\uc801\uc778 \uacf5\ud559\uc801 \ubc94\uc704\ub85c \uc774\ud574\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc18d\uc131<\/th>\uc77c\ubc18 \uac12<\/th>\ub2e8\uc704<\/th>\uc2dc\ud5d8 \uae30\uc900 \/ \uc870\uac74<\/th><\/tr><\/thead>
\ubc00\ub3c4<\/td>7.83\u20137.85<\/td>g\/cm\u00b3<\/td>\uc77c\ubc18\uc801\uc778 \ud569\uae08 \ud568\ub7c9<\/td><\/tr>
\uc194\ub9ac\ub354\uc2a4 \/ \uc6a9\uc735 \uc2dc\uc791\uc810<\/td>1415\ub144\uacbd<\/td>\u00b0C<\/td>\ub300\ud45c\uc801\uc778 \ud569\uae08 \ubc94\uc704<\/td><\/tr>
\ub9ac\ud034\ub354\uc2a4 \/ \uc644\uc804 \uc6a9\uc735<\/td>1460\ub144\uacbd<\/td>\u00b0C<\/td>\ub300\ud45c\uc801\uc778 \ud569\uae08 \ubc94\uc704<\/td><\/tr>
\uad81\uadf9\uc758 \uc778\uc7a5 \uac15\ub3c4<\/td>1080\u20131965<\/td>MPa<\/td>\uc77c\ubc18\uc801\uc778 \ub2f4\uae08\uc9c8 \ubc0f \ud15c\ud37c\ub9c1 \ubc94\uc704 (\uc870\uac74\uc5d0 \ub530\ub77c \ub2e4\ub984)<\/td><\/tr>
\ud56d\ubcf5 \uac15\ub3c4(0.2%)<\/td>745\u20131650<\/td>MPa<\/td>\uc77c\ubc18\uc801\uc778 \ub2f4\uae08\uc9c8 \ubc0f \ud15c\ud37c \ucc98\ub9ac \ubc94\uc704<\/td><\/tr>
\ud734\uc2dd \uc2dc \uc2e0\uc7a5<\/td>8\u201318<\/td>%<\/td>\uacbd\ub3c4\uc640 \uc5f4\ucc98\ub9ac \uc0c1\ud0dc\uc5d0 \ub530\ub77c \ub2e4\ub985\ub2c8\ub2e4.<\/td><\/tr>
\uacbd\ub3c4<\/td>28\u201355<\/td>HRC<\/td>\uc5f4\ucc98\ub9ac\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9d0<\/td><\/tr>
\uc601\uc758 \uacc4\uc218<\/td>\uc57d 205<\/td>GPa<\/td>\uc77c\ubc18\uc801\uc778 \uc2e4\uc628 \uac12<\/td><\/tr>
\uc5f4 \uc804\ub3c4\uc131<\/td>\uc57d 42~45<\/td>W\/m-K<\/td>\uc77c\ubc18\uc801\uc778 \uc2e4\uc628 \uac12<\/td><\/tr>
\ucda9\uaca9 \uc778\uc131<\/td>\uc870\uac74\uc5d0 \ub530\ub77c<\/td>J<\/td>\ud544\uc694\ud55c \uacbd\uc6b0 \uc77c\ubc18\uc801\uc73c\ub85c \uc0e4\ub974\ud53c \uc2dc\ud5d8\uc744 \ud1b5\ud574 \uac80\uc99d\ub429\ub2c8\ub2e4<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\uac15\ub3c4\uc640 \ub0b4\uad6c\uc131 \ucc3d<\/h3>\n\n\n\n

\uc5d4\uc9c0\ub2c8\uc5b4\ub4e4\uc774 4340\uc744 \uc0ac\uc6a9\ud558\ub294 \uc8fc\ub41c \uc774\uc720\ub294 \uc774 \uc18c\uc7ac\uac00 \ub9e4\uc6b0 \uad11\ubc94\uc704\ud55c \uac15\ub3c4 \ubc94\uc704\ub97c \uac16\ucd9c \uc218 \uc788\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4. \uc800\uc628 \ud15c\ud37c\ub9c1 \uacbd\ub3c4\ub294 \ucda9\uaca9 \ud558\uc911\uc744 \ubc1b\ub294 \ubd80\ud488\uc5d0 \ub354 \ub098\uc740 \uc5f0\uc131\uacfc \uc778\uc131\uc744 \uc81c\uacf5\ud558\uba70, \ub2e8\uba74 \ud06c\uae30, \uc751\ub825 \uc0c1\ud0dc \ubc0f \ud53c\ub85c \uc124\uacc4 \uc870\uac74\uc774 \ud5c8\uc6a9\ud558\ub294 \uacbd\uc6b0 \uace0\uacbd\ub3c4 \uc870\uac74\uc5d0\uc11c\ub294 \uac15\ub3c4\ub97c \ud6e8\uc52c \ub354 \ub192\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uc720\uc5f0\uc131 \ub355\ubd84\uc5d0 \uc801\uce35 \uc81c\uc870(AM) \uc0ac\uc6a9\uc790\ub294 \ud569\uae08 \uacc4\uc5f4\uc744 \ubcc0\uacbd\ud558\uc9c0 \uc54a\uace0\ub3c4 \ub2e4\uc591\ud55c \uc0ac\uc6a9 \uc870\uac74\uc5d0 \ub9de\ucdb0 \ub3d9\uc77c\ud55c \uadfc\ud615\uc0c1(near-net-shape) \ud615\uc0c1\uc744 \ucd5c\uc801\ud654\ud560 \uc218 \uc788\ub294 \uc5ec\uc9c0\ub97c \uac16\uac8c \ub429\ub2c8\ub2e4.<\/p>\n\n\n\n

\uacbd\ub3c4, \ub9c8\ubaa8 \ubc0f \uc5f4\ucc98\ub9ac<\/h3>\n\n\n\n

4340 AM \ubd80\ud488\uc740 \uae4c\ub2e4\ub85c\uc6b4 \uc6a9\ub3c4\uc758 \uacbd\uc6b0, \uc81c\uc791 \uc9c1\ud6c4\uc758 \uc6d0\uc0c1\ud0dc\ub85c \ub0a8\uaca8\uc9c0\ub294 \uacbd\uc6b0\uac00 \uac70\uc758 \uc5c6\uc2b5\ub2c8\ub2e4. \uc77c\ubc18\uc801\uc778 \uacf5\uc815\uc73c\ub85c\ub294 \uc801\uce35 \ud6c4 \uc751\ub825 \uc81c\uac70\ub97c \uac70\uccd0, \ubaa9\ud45c \uacbd\ub3c4\uc640 \uc2ec\ubd80 \uac15\ub3c4\ub97c \ub2ec\uc131\ud558\uae30 \uc704\ud574 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654, \ub2f4\uae08\uc9c8 \ubc0f \ud15c\ud37c\ub9c1\uc744 \uc2e4\uc2dc\ud569\ub2c8\ub2e4. \ubd80\ud488\uc5d0 \ud45c\uba74 \ub0b4\ub9c8\ubaa8\uc131\uc774 \ucd94\uac00\ub85c \ud544\uc694\ud55c \uacbd\uc6b0, \ubcc0\ud615 \ud5c8\uc6a9 \ud55c\ub3c4 \ubc0f \ucd5c\uc885 \uce58\uc218\uc5d0 \ub530\ub77c \uc9c8\ud654 \ucc98\ub9ac, \uce68\ud0c4 \ucc98\ub9ac \ub610\ub294 \ucf54\ud305\uacfc \uac19\uc740 \ucd94\uac00 \ub9c8\uac10 \uacf5\uc815\uc744 \uace0\ub824\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc5f4\uc801 \ubc0f \uad6c\uc870\uc801 \uac70\ub3d9<\/h3>\n\n\n\n

4340\uc740 \uc54c\ub8e8\ubbf8\ub284\uc774\ub098 \ud2f0\ud0c0\ub284 \ubd84\ub9d0\ubcf4\ub2e4 \ubc00\ub3c4\uac00 \ud6e8\uc52c \ub192\uc9c0\ub9cc, \uc774\ub7ec\ud55c \ubc00\ub3c4 \ub355\ubd84\uc5d0 \ub192\uc740 \uac15\uc131\uacfc \uacac\uace0\ud55c \ud558\uc911 \uc9c0\uc9c0 \ub2a5\ub825\uc744 \uac16\ucd94\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uc5f4\uc804\ub3c4\uc728\uc740 \uac15\ucca0 \uce58\uace0\ub294 \uc911\uac04 \uc218\uc900\uc774\uba70, \uc608\uce21 \uac00\ub2a5\ud55c \uc5f4\ucc98\ub9ac \ubc18\uc751\uc744 \ubcf4\uc77c \ub9cc\ud07c \ucda9\ubd84\ud788 \ub192\uc9c0\ub9cc, \uc5f4 \uad00\ub9ac\uc6a9 \ud569\uae08\uc73c\ub85c \uc0ac\uc6a9\ub418\uae30\uc5d0\ub294 \ucda9\ubd84\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \uc2e4\uc81c\ub85c \uc124\uacc4\uc790\ub4e4\uc740 \uacbd\ub7c9\ud654\ub098 \uc5f4\uad50\ud658\uae30 \uc6a9\ub3c4\ubcf4\ub2e4\ub294 \uace0\ubd80\ud558 \uae30\uacc4\uc801 \uc791\uc5c5\uc5d0 \uc774 \uc7ac\ub8cc\ub97c \uc120\ud0dd\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc0ac\uc591 \ubc0f \uc81c\uacf5 \ub4f1\uae09<\/h2>\n\n\n\n

\uad6c\ub9e4 \uce21\uba74\uc5d0\uc11c \ubcfc \ub54c, 4340 \ud569\uae08\uac15 \ubd84\ub9d0\uc740 \ub2e8\uc21c\ud788 \ud654\ud559 \uc131\ubd84\ub9cc\uc73c\ub85c \uc815\uc758\ub418\ub294 \uac83\uc774 \uc544\ub2d9\ub2c8\ub2e4. \uc0ac\uc6a9\uc790\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \uc785\uc790 \ud06c\uae30 \ubd84\ud3ec, \uac89\ubc00\ub3c4, \ud0c0\ud551 \ubc00\ub3c4, \ud640 \uc720\ub3d9\ub3c4, \uc0b0\uc18c \ud568\ub7c9, \ud615\ud0dc, \ub85c\ud2b8 \ucd94\uc801\uc131 \ubc0f \uc608\uc815\ub41c \uc801\uce35 \uc81c\uc870(AM) \uacf5\uc815 \uacbd\ub85c\ub97c \uba85\uc2dc\ud569\ub2c8\ub2e4. \uac00\uacf5\uc6a9 4340\uc5d0 \ub300\ud55c \ud45c\uc900\uc740 \uc774\ubbf8 \uc131\uc219\ud55c \ubc18\uba74, AM \uc6d0\ub8cc\uc5d0 \ub300\ud55c \ud45c\uc900\uc740 \uc5ec\uc804\ud788 \uacf5\uc815\uc5d0 \ucd08\uc810\uc744 \ub9de\ucd94\uace0 \uc788\uae30 \ub54c\ubb38\uc5d0, \uc790\uaca9 \uc778\uc99d \uacfc\uc815\uc5d0\uc11c\ub294 \uae30\uc874 \ud569\uae08 \uae30\uc900\uacfc \uae30\uacc4\ubcc4 \ubd84\ub9d0 \uc2b9\uc778 \uae30\uc900, \uadf8\ub9ac\uace0 \ub0b4\ubd80 \uc81c\uc791 \uac80\uc99d \ud504\ub85c\ud1a0\ucf5c\uc744 \uacb0\ud569\ud558\ub294 \uacbd\uc6b0\uac00 \ub9ce\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\ud559\ub144 \/ PSD \ubc18<\/th>\ub300\ud45c\uc801\uc778 \uc785\uc790 \ud06c\uae30 \ubd84\ud3ec<\/th>\uac89\ubcf4\uae30 \ubc00\ub3c4<\/th>\ud0ed \ubc00\ub3c4<\/th>\ud640 \ud750\ub984<\/th>\uc0b0\uc18c \ud568\ub7c9<\/th>\uad6c\ud615\ub3c4 \/ \ud615\ud0dc<\/th>\uc77c\ubc18\uc801\uc778 \ud45c\uc900 \uc0c1\ud638 \ucc38\uc870<\/th><\/tr><\/thead>
\uace0\ud488\uc9c8 LPBF \ub4f1\uae09<\/td>15-45 \u00b5m<\/td>4.2\u20134.8 g\/cm\u00b3<\/td>4.8\u20135.4 g\/cm\u00b3<\/td>15\u201322\ucd08\/50g<\/td>\uc77c\ubc18\uc801\uc73c\ub85c \u22640.10 wt.%<\/td>\uad6c\ud615\uc5d0 \uac00\uae5d\uace0 \uada4\ub3c4\uac00 \ub0ae\uc740 \uc704\uc131\uc774 \uc120\ud638\ub428<\/td>AISI\/SAE 4340 \uaddc\uaca9\uc5d0 \ubd80\ud569\ud558\ub294 \ud654\ud559 \uc131\ubd84; \uc0ac\uc6a9\uc790 \uc808\ucc28\uc5d0 \ub530\ub77c \uc778\uc99d\ub41c AM \uc6d0\ub8cc<\/td><\/tr>
\ud45c\uc900 LPBF \ub4f1\uae09<\/td>15-53 \u00b5m<\/td>4.3\u20134.9 g\/cm\u00b3<\/td>4.9\u20135.5 g\/cm\u00b3<\/td>14\u201321\ucd08\/50g<\/td>\uc77c\ubc18\uc801\uc73c\ub85c \u22640.10 wt.%<\/td>\uad6c\ud615 \uac00\uc2a4 \ubd84\ubb34 \ubd84\ub9d0<\/td>\ub2e4\uc591\ud55c \ub808\uc774\uc800 \ud30c\uc6b0\ub354 \ubca0\ub4dc \uc2dc\uc2a4\ud15c\uc5d0 \uc0ac\uc6a9\ub429\ub2c8\ub2e4<\/td><\/tr>
DED \ub4f1\uae09<\/td>45-105 \u00b5m<\/td>4.4\u20135.0 g\/cm\u00b3<\/td>5.0\u20135.7 g\/cm\u00b3<\/td>13\u201320\ucd08\/50g<\/td>\uc77c\ubc18\uc801\uc73c\ub85c \u22640.12 wt.%<\/td>\uad6c\ud615\uc5d0\uc11c \uc900\uad6c\ud615\uae4c\uc9c0<\/td>\ubd84\uc0ac\uc2dd \ubd84\ub9d0 \uc99d\ucc29\uc5d0 \uc801\ud569\ud55c \ud06c\uae30<\/td><\/tr>
\uac70\uce5c AM \/ \ud074\ub798\ub529 \ub4f1\uae09<\/td>53-150 \u00b5m<\/td>4.5\u20135.1 g\/cm\u00b3<\/td>5.1\u20135.8 g\/cm\u00b3<\/td>50g\ub2f9 13\u201319\ucd08<\/td>\uc77c\ubc18\uc801\uc73c\ub85c \u22640.12 wt.%<\/td>\uad6c\ud615\uc774\uba70, \ubd84\ud3ec \ubc94\uc704\uac00 \ub354 \ub113\uc740<\/td>\ub808\uc774\uc800 \ud074\ub798\ub529 \ubc0f \uc77c\ubd80 \uc218\ub9ac \uacf5\uc815\uc5d0 \uc0ac\uc6a9\ub428<\/td><\/tr>
\ud654\ud559 \uc0c1\ud638 \ucc38\uc870<\/td>\uacf5\uc815\ubcc4<\/td>\uacf5\uc815\ubcc4<\/td>\uacf5\uc815\ubcc4<\/td>\uacf5\uc815\ubcc4<\/td>\uad6c\ub9e4 \uc0ac\uc591\uc5d0 \ub530\ub77c<\/td>\ubd84\ubb34\ubc95\uc744 \ud1b5\ud574<\/td>\uc77c\ubc18\uc801\uc778 \uba85\uce6d\uc73c\ub85c\ub294 AISI 4340, SAE 4340, UNS G43400 \ub4f1\uc774 \uc788\uc73c\uba70, \uc870\ub2ec \uad00\ud589\uc5d0 \ub530\ub77c EN24 \ub610\ub294 34CrNiMo6\uacfc \ub300\ub7b5\uc801\uc73c\ub85c \uc720\uc0ac\ud569\ub2c8\ub2e4.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

4340 \ud569\uae08\uac15 \ubd84\ub9d0\uc758 \uc785\ub3c4 \ubd84\ud3ec<\/h3>\n\n\n\n

\uc785\uc790 \ud06c\uae30 \ubd84\ud3ec\ub294 \uce35 \ub450\uaed8, \ucda9\uc9c4 \uac70\ub3d9, \ub808\uc774\uc800 \ud761\uc218\uc728 \ubc0f \uc7ac\ucf54\ud305 \uc77c\uad00\uc131\uc5d0 \uc9c1\uc811\uc801\uc778 \uc601\ud5a5\uc744 \ubbf8\uce69\ub2c8\ub2e4. \ub808\uc774\uc800 \ud30c\uc6b0\ub354 \ubca0\ub4dc \uc735\ud569(LPBF)\uc5d0\ub294 \uc77c\ubc18\uc801\uc73c\ub85c 15\u201345 \u00b5m \ub610\ub294 15\u201353 \u00b5m\uc758 \ubbf8\uc138 \uc785\uc790 \ubd84\uae09\uc774 \uc0ac\uc6a9\ub418\uba70, \ub354 \uad75\uc740 \uc785\uc790 \ubd84\uae09\uc740 DED, \ud074\ub798\ub529 \ub610\ub294 \uc218\ub9ac\uc5d0 \ub354 \uc801\ud569\ud569\ub2c8\ub2e4. \ub530\ub77c\uc11c \ub3d9\uc77c\ud55c \ud654\ud559 \uc131\ubd84\uc758 \ubd84\ub9d0\uc774\ub77c\ub3c4 \uc11c\ub85c \ub2e4\ub978 \uc5d0\ub108\uc9c0 \uc804\ub2ec \ubc29\uc2dd\uc5d0 \ub9de\ucdb0 \uc5ec\ub7ec \uc785\ub3c4 \ubd84\ud3ec \ub4f1\uae09\uc73c\ub85c \ud310\ub9e4\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\ud45c\uc900, \ub3d9\ub4f1\uc131 \ubc0f \uc790\uaca9 \uc2ec\uc0ac \uad00\ud589<\/h3>\n\n\n\n

4340\uc740 \uae30\ubcf8\uc801\uc73c\ub85c \uc798 \uc54c\ub824\uc9c4 \ub2e8\uc870 \ud569\uae08\uc774\uc9c0\ub9cc, \uc801\uce35 \uc81c\uc870 \uc801\ud569\uc131 \uc5ec\ubd80\ub294 \uc5ec\uc804\ud788 \uc0ac\uc6a9\ud558\ub294 \uae30\uacc4, \ub9e4\uac1c\ubcc0\uc218 \uc124\uc815 \ubc0f \ud6c4\ucc98\ub9ac \uacf5\uc815\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9d1\ub2c8\ub2e4. \uad6c\ub9e4\uc790\ub294 AISI \ub610\ub294 SAE \uc131\ubd84 \uaddc\uaca9\uc744 \ucc38\uace0\ud558\uac70\ub098, \uc774\uc5d0 \ubd80\ud569\ud558\ub294 \ub0b4\ubd80 \ubd84\ub9d0 \uc2b9\uc778 \ubc29\ubc95\uc744 \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. ASTM \uc7ac\ub8cc \ud45c\uc900<\/a>, \uadf8\ub9ac\uace0 \uacf5\uc815 \uc6a9\uc5b4\ub97c \uad6d\uc81c \ud45c\uc900\uc5d0\uc11c \uc0ac\uc6a9\ub418\ub294 AM \uc6a9\uc5b4\uc9d1\uacfc \ub300\uc870\ud558\uc5ec \ud655\uc778\ud574\uc57c \ud569\ub2c8\ub2e4. \uc0c1\uc5c5\uc6a9 \uba85\uce6d\ub3c4 \uc9c0\uc5ed\uc5d0 \ub530\ub77c \ub2e4\ub97c \uc218 \uc788\uc73c\ubbc0\ub85c, \uc815\ud655\ud55c \uad6c\ub9e4 \uc0ac\uc591\uc11c\uc5d0\ub294 \ud654\ud559 \uc131\ubd84, PSD, \ud615\ud0dc \ubc0f \ub300\uc0c1 \uacf5\uc815\uc744 \ub3d9\uc77c\ud55c \ubb38\uc11c\uc5d0 \uba85\uc2dc\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\uacf5\uae09 \ud615\ud0dc \ubc0f \uad00\ub828 \uac15\ubd84 \uc81c\ud488\uad70<\/h3>\n\n\n\n

\uacf5\uae09\uc5c5\uccb4\ub4e4\uc740 \ud074\ub798\ub529 \ubc0f \uc218\ub9ac \uc6a9\ub3c4\ub85c 4340\uc744 \uc21c\uc218 LPBF \ubd84\ub9d0, DED \ubd84\ub9d0 \ub610\ub294 \ubcf4\ub2e4 \uad11\ubc94\uc704\ud55c \ubd84\ub9d0 \uc5d4\uc9c0\ub2c8\uc5b4\ub9c1 \ub4f1\uae09\uc73c\ub85c \uc81c\uacf5\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \uc18c\uc7ac\ub294 \uc885\uc885 \uace0\uac15\ub3c4 \uc81c\uc791\uc5d0 \uc0ac\uc6a9\ub418\ub294 \ub9c8\ub77c\uc9d5\uac15, \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15 \ubc0f \uae30\ud0c0 \uc800\ud569\uae08 \uc2dc\uc2a4\ud15c\uacfc \ud568\uaed8 \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \uc81c\ud488\uad70 \uac04 \uc635\uc158\uc744 \uac80\ud1a0\ud558\ub294 \ub3c5\uc790\ub4e4\uc740 \ub2e4\uc74c\uc744 \ud1b5\ud574 \ub2e4\ub978 \uae08\uc18d \uc801\uce35 \uc81c\uc870(AM) \ubc94\uc8fc\uc640 \uc774\ub97c \ube44\uad50\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc0b0\uc5c5\uc6a9 \ubd84\uccb4 \ub3c4\ud3ec \uad00\ub828 \ud398\uc774\uc9c0<\/a>, \ud2b9\ud788 \ud574\ub2f9 \ubd80\ud488\uc744 \ub2e4\ub978 \ud569\uae08 \ub4f1\uae09\uc744 \uae30\uc900\uc73c\ub85c \uc7ac\uc124\uacc4\ud574\uc57c \ud560 \uacbd\uc6b0\ub77c\uba74 \ub354\uc6b1 \uadf8\ub807\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc81c\uc870 \ud504\ub85c\uc138\uc2a4<\/h2>\n\n\n\n

4340 \ud569\uae08\uac15 \ubd84\ub9d0\uc758 \ud488\uc9c8\uc740 \ubd84\ub9d0\uc758 \uc81c\uc870 \ubc29\uc2dd\uc5d0 \ud06c\uac8c \uc88c\uc6b0\ub429\ub2c8\ub2e4. \uc801\uce35 \uc81c\uc870(AM)\uc6a9 \uc6d0\ub8cc\ub294 \uc77c\uad00\ub41c \uc720\ub3d9\uc131\uc744 \ubcf4\uc774\uba70 \uade0\uc77c\ud558\uac8c \ub2e4\uc838\uc9c0\uace0 \uc608\uce21 \uac00\ub2a5\ud55c \ubc29\uc2dd\uc73c\ub85c \uc6a9\uc735\ub418\uc5b4\uc57c \ud558\ubbc0\ub85c, \uc785\uc790 \ud615\ud0dc\uc640 \ud45c\uba74 \ud654\ud559\uc801 \uc131\uc9c8\uc740 \ud569\uae08 \uc870\uc131\ub9cc\ud07c\uc774\ub098 \uc911\uc694\ud569\ub2c8\ub2e4. \uc2e4\uc81c\ub85c \uac00\uc7a5 \ub110\ub9ac \uc0ac\uc6a9\ub418\ub294 \uc0b0\uc5c5\uc6a9 \uc81c\uc870 \uacf5\uc815\uc740 \uac00\uc2a4 \ubd84\ubb34\ubc95 \ubc0f \uadf8 \uc9c4\uacf5 \uc81c\uc5b4 \ubcc0\ud615 \ubc29\uc2dd\uc774\uba70, PREP \ubc0f EIGA \uacf5\uc815\uc740 \ud0c1\uc6d4\ud55c \uccad\uc815\ub3c4\ub098 \uc785\uc790 \ud615\ud0dc\uac00 \uc694\uad6c\ub420 \ub54c \ub354 \uc120\ubcc4\uc801\uc73c\ub85c \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n

\ud504\ub85c\uc138\uc2a4<\/th>\ubd84\ub9d0 \ud615\ud0dc \/ \uad6c\ud615\ub3c4<\/th>\uc0b0\uc18c \ud53d\uc5c5<\/th>PSD \uc81c\uc5b4<\/th>\ucc98\ub9ac\ub7c9<\/th>\uc0c1\ub300\uc801 \ube44\uc6a9<\/th>4340\uc758 \ub300\ud45c\uc801\uc778 \uc0ac\uc6a9 \uc0ac\ub840<\/th><\/tr><\/thead>
\uac00\uc2a4 \ubd84\ubb34(GA)<\/td>\ub9d1\uc74c, \uc77c\ubd80 \uc9c0\uc5ed\uc5d0\uc11c \uc704\uc131 \uad6c\ub984 \ubc1c\uc0dd \uac00\ub2a5<\/td>\ub0ae\uc74c\uc5d0\uc11c \ubcf4\ud1b5<\/td>\uc591\ud638<\/td>\ub192\uc74c<\/td>\ubcf4\ud1b5<\/td>LPBF, DED \ubc0f \ud074\ub798\ub529 \ub4f1\uae09\uc758 \uc8fc\uc694 \uc0c1\uc5c5\uc6a9 \uacbd\ub85c<\/td><\/tr>
\uc9c4\uacf5 \uc720\ub3c4 \uac00\uc2a4 \ubd84\ubb34\ubc95 (VIGA)<\/td>\ub9e4\uc6b0 \uc6b0\uc218\ud558\uba70, \ud45c\uba74 \uc0c1\ud0dc\uac00 \uae68\ub057\ud568<\/td>\ub0ae\uc74c<\/td>\ub9e4\uc6b0 \uc88b\uc74c<\/td>\uc911\uac04\uc5d0\uc11c \ub192\uc74c<\/td>\ubcf4\ud1b5\uc5d0\uc11c \ub192\uc74c<\/td>\ucca0\uc800\ud55c \uccad\uacb0\ub3c4\uc640 \uc77c\uad00\uc131\uc774 \uc694\uad6c\ub418\ub294 \ud504\ub9ac\ubbf8\uc5c4 \uc81c\ud488\uad70<\/td><\/tr>
\ud50c\ub77c\uc988\ub9c8 \ud68c\uc804 \uc804\uadf9 \uacf5\uc815(PREP)<\/td>\ud0c1\uc6d4\ud55c \uad6c\ud615\ub3c4, \ub9e4\uc6b0 \ub9e4\ub044\ub7ec\uc6b4 \uc785\uc790<\/td>\ub9e4\uc6b0 \ub0ae\uc74c<\/td>\ubd84\ub958 \ud6c4 \u2018\ubcf4\ud1b5\u2019<\/td>Medium<\/td>\ub192\uc74c<\/td>\ud615\uc0c1 \ud2b9\uc131\uc744 \ucd5c\uc6b0\uc120\uc73c\ub85c \uace0\ub824\ud55c \ud2b9\uc218 \uad6c\ud615 \ubd84\ub9d0<\/td><\/tr>
\uc804\uadf9 \uc720\ub3c4 \uac00\uc2a4 \ubd84\ubb34\ubc95 (EIGA)<\/td>\ub9e4\uc6b0 \ub192\uc74c<\/td>\ub9e4\uc6b0 \ub0ae\uc74c<\/td>\uc88b\uc74c ~ \ub9e4\uc6b0 \uc88b\uc74c<\/td>Medium<\/td>\ub192\uc74c<\/td>\uc624\uc5fc \uc704\ud5d8\uc774 \ub0ae\uc740 \uace0\uc21c\ub3c4 \ud2b9\uc218 \uc81c\ud488 \uc0dd\uc0b0<\/td><\/tr>
\ubb3c \ubd84\ubb34<\/td>\ubd88\uaddc\uce59\uc5d0\uc11c \ubc18\ubd88\uaddc\uce59\uae4c\uc9c0<\/td>\uc0b0\ud654 \uc704\ud5d8 \uc99d\uac00<\/td>\uad11\ubc94\uc704<\/td>\ub192\uc74c<\/td>\ub0ae\uc74c<\/td>\uc77c\ubc18\uc801\uc73c\ub85c LPBF \ub4f1\uae09 4340\uc5d0\ub294 \uc801\ud569\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

4340 \uc801\uce35 \uc81c\uc870\uc6a9 \ubd84\ub9d0\uc744 \uc704\ud55c \uac00\uc2a4 \ubd84\ubb34\ubc95<\/h3>\n\n\n\n

\uac00\uc2a4 \ubd84\ubb34\ubc95\uc740 \ub300\ubd80\ubd84\uc758 \uc0c1\uc6a9 4340 \uc801\uce35 \uc81c\uc870(AM)\uc6a9 \ubd84\ub9d0\uc758 \uae30\ubcf8 \uc81c\uc870 \uacf5\uc815\uc785\ub2c8\ub2e4. \uc6a9\uc735\ub41c \ud569\uae08\uc740 \uace0\uc555 \ubd88\ud65c\uc131 \uac00\uc2a4\uc5d0 \uc758\ud574 \ubbf8\uc138 \ubc29\uc6b8\ub85c \ubd84\ud574\ub418\uc5b4 \ub300\ubd80\ubd84 \uad6c\ud615\uc758 \uc785\uc790\ub85c \uc751\uace0\ub41c \ud6c4, \uc120\ubcc4 \ubc0f \ubd84\ub958 \uacfc\uc815\uc744 \uac70\uccd0 \uc694\uad6c\ub418\ub294 \uc785\ub3c4 \ubd84\ud3ec(PSD)\ub97c \uac16\ub3c4\ub85d \ucc98\ub9ac\ub429\ub2c8\ub2e4. \uc774 \uacf5\uc815\uc740 \ud655\uc7a5\uc131\uc774 \ub6f0\uc5b4\ub098\uace0 \ub85c\ud2b8\ub2f9 \uacbd\uc81c\uc131\uc774 \uc6b0\uc218\ud558\uba70, \uc77c\ubc18\uc801\uc73c\ub85c \ub808\uc774\uc800 \ud30c\uc6b0\ub354 \ubca0\ub4dc \uc735\ud569(LPBF) \ubc0f \uc9c0\ud5a5 \uc5d0\ub108\uc9c0 \uc99d\ucc29(DED)\uc6a9 \ub4f1\uae09\uc758 \ubd84\ub9d0 \uc81c\uc870\uc5d0 \uac00\uc7a5 \uba3c\uc800 \uc120\ud0dd\ub418\ub294 \ubc29\ubc95\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n

PREP, VIGA \ubc0f EIGA\uc758 \uc7a5\ub2e8\uc810<\/h3>\n\n\n\n

PREP \uacf5\uc815\uc740 \uc624\uc5fc\ub3c4\uac00 \ub0ae\uace0 \ub9e4\uc6b0 \ub465\uadfc \uc785\uc790\ub97c \uc0dd\uc0b0\ud560 \uc218 \uc788\uc5b4, \ube44\uc6a9\ubcf4\ub2e4 \uc720\ub3d9\uc131\uacfc \uccad\uacb0\uc131\uc744 \uc6b0\uc120\uc2dc\ud574\uc57c \ud558\ub294 \uacbd\uc6b0\uc5d0 \uc720\uc6a9\ud569\ub2c8\ub2e4. VIGA \uacf5\uc815\uc740 \uc6a9\uc735\ubb3c\uc758 \uccad\uacb0\ub3c4\uc640 \ub300\uae30 \uc81c\uc5b4 \ub2a5\ub825\uc744 \ud5a5\uc0c1\uc2dc\ud0a4\uba70, \uc774\ub294 \uc911\uc694\ud55c \uae30\uacc4\uc801 \uc6a9\ub3c4\ub098 \uc5f0\uad6c\uc6a9 \uc6d0\ub8cc\uc5d0 \uc788\uc5b4 \uc911\uc694\ud55c \uc694\uc18c\uac00 \ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. EIGA\ub294 \ub610 \ub2e4\ub978 \uc800\uc624\uc5fc \uc0dd\uc0b0 \ubc29\uc2dd\uc744 \uc81c\uacf5\ud558\uc9c0\ub9cc, 4340\uc758 \uacbd\uc6b0 \uace0\ud488\uc9c8 GA \ubd84\ub9d0\ub9cc\uc73c\ub85c\ub3c4 \uc774\ubbf8 \ub9ce\uc740 \uc0b0\uc5c5\uc801 \uc694\uad6c \uc0ac\ud56d\uc744 \ucda9\uc871\uc2dc\ud0a4\uae30 \ub54c\ubb38\uc5d0 \uc120\ud0dd \uc5ec\ubd80\ub294 \ub300\uac1c \uacbd\uc81c\uc801 \uc694\uc778\uc5d0 \ub530\ub77c \uacb0\uc815\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n

\uac00\uacf5, \uc120\ubcc4 \ubc0f \ud3ec\uc7a5<\/h3>\n\n\n\n

\ubd84\ubb34 \uacf5\uc815\ub9cc\uc73c\ub85c\ub294 \uc644\uc131\ub41c \uc801\uce35 \uc81c\uc870\uc6a9 \ubd84\ub9d0\uc744 \uc5bb\uc744 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4. \uc81c\uc870\uc5c5\uccb4\ub294 \uc5ec\uc804\ud788 \uacfc\ub300 \uc785\uc790\uc640 \uacfc\uc18c \uc785\uc790\ub97c \uc120\ubcc4\ud558\uace0, \uc751\uc9d1\uccb4\ub97c \uc81c\uac70\ud558\uba70, \uc720\ub3d9\uc131\uacfc \ubc00\ub3c4\ub97c \ud655\uc778\ud55c \ub4a4, \uc218\ubd84 \ud761\uc218\uc640 \uc624\uc5fc\uc744 \ucd5c\uc18c\ud654\ud558\uae30 \uc704\ud574 \ud574\ub2f9 \ub85c\ud2b8\ub97c \ud3ec\uc7a5\ud574\uc57c \ud569\ub2c8\ub2e4. \uc7a5\ube44 \ubc0f \uae08\uc18d \uc6d0\ub8cc \ubd84\uc57c\uc5d0\uc11c \ud65c\ub3d9\ud558\ub294 \uae30\uc5c5\ub4e4, \ud2b9\ud788 PREP \ubc0f GA \uc2dc\uc2a4\ud15c\uc5d0 \ub300\ud55c \uacbd\ud5d8\uc744 \ubcf4\uc720\ud55c \uae30\uc5c5\ub4e4, \uc608\ub97c \ub4e4\uc5b4 \ud68c\uc0ac \uac1c\uc694 \uc139\uc158<\/a>, \uc77c\ubc18\uc801\uc73c\ub85c \ubd84\ub9d0 \uc804\ucc98\ub9ac\ub97c \uc0ac\ud6c4 \uace0\ub824 \uc0ac\ud56d\uc774 \uc544\ub2c8\ub77c \uc804\uccb4 \uacf5\uc815\uc758 \uc77c\ubd80\ub85c \ucde8\uae09\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

4340 \ubd84\ub9d0\uc5d0\uc11c \ud615\ud0dc\ud559\uc774 \uc911\uc694\ud55c \uc774\uc720<\/h3>\n\n\n\n

\ubd84\ub9d0\uc758 \ud615\ud0dc\ub294 \uae30\uacc4\uc758 \uc791\ub3d9 \ubc29\uc2dd\uacfc \ucd5c\uc885 \ubd80\ud488\uc758 \ud488\uc9c8 \ubaa8\ub450\uc5d0 \uc601\ud5a5\uc744 \ubbf8\uce69\ub2c8\ub2e4. \uad6c\ud615\uc5d0 \uac00\uae4c\uc6b4 \uc785\uc790\ub294 \ub354 \uace0\ub974\uac8c \ubd84\ud3ec\ub418\uace0, \ub354 \uc870\ubc00\ud55c \uce35\uc744 \ud615\uc131\ud558\uba70, \uad6d\ubd80\uc801\uc778 \uc5d0\ub108\uc9c0 \ud761\uc218 \ubd88\uade0\ud615 \uc704\ud5d8\uc744 \uc904\uc774\ub294 \uacbd\ud5a5\uc774 \uc788\uc2b5\ub2c8\ub2e4. \uc6d0\ub8cc\uc758 \ud488\uc9c8\uacfc \ubd84\ub9d0 \ubca0\ub4dc \uac70\ub3d9 \uac04\uc758 \uad00\uacc4\ub294 \uc5d4\uc9c0\ub2c8\uc5b4\ub4e4\uc774 \uc885\uc885 \ub2e4\uc74c\uc744 \ucc38\uace0\ud558\ub294 \uc774\uc720 \uc911 \ud558\ub098\uc785\ub2c8\ub2e4. \ubd84\ub9d0\uce35 \uc6a9\uc735 \uacf5\uc815\uc758 \uac1c\uc694<\/a> \uac15\ucca0, \uc54c\ub8e8\ubbf8\ub284, \ud2f0\ud0c0\ub284 \uc2dc\uc2a4\ud15c \uc804\ubc18\uc5d0 \uac78\uccd0 LPBF \uc6d0\ub8cc\ub97c \ube44\uad50\ud560 \ub54c.<\/p>\n\n\n\n

\uc0b0\uc5c5\ubcc4 \uc801\uc6a9 \uc0ac\ub840<\/h2>\n\n\n\n

4340 \ud569\uae08\uac15 \ubd84\ub9d0\uc740 \ud615\uc0c1\uc774 \ubcf5\uc7a1\ud55c \ubd80\ud488\uc5d0 \ub300\ud574 \ub192\uc740 \uac15\ub3c4, \uc6b0\uc218\ud55c \ud53c\ub85c \uc800\ud56d\uc131, \uadf8\ub9ac\uace0 \uc2e0\ub8b0\ud560 \uc218 \uc788\ub294 \uc5f4\ucc98\ub9ac \ubc18\uc751\uc774 \uc694\uad6c\ub418\ub294 \uc0b0\uc5c5 \ubd84\uc57c\uc5d0\uc11c \uac00\uc7a5 \ud070 \uac00\uce58\ub97c \ubc1c\ud718\ud569\ub2c8\ub2e4. \ubd80\uc2dd\uc131 \ud654\ud559 \ubb3c\uc9c8\uc5d0 \ub178\ucd9c\ub418\ub294 \ud658\uacbd\uc774\ub098 \uc0dd\uccb4\uc758\ub8cc\uc6a9 \uc784\ud50c\ub780\ud2b8\uc5d0\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \uc6b0\uc120\uc801\uc73c\ub85c \uc120\ud0dd\ub418\ub294 \uc18c\uc7ac\ub294 \uc544\ub2c8\uc9c0\ub9cc, \uae30\uacc4\uc801 \ud558\uc911\uc774 \uc7ac\ub8cc \uc120\uc815\uc758 \uc8fc\uc694 \uae30\uc900\uc774 \ub418\ub294 \uadf9\ud55c \uc870\uac74\uc758 \uad6c\uc870\uc6a9 \ud558\ub4dc\uc6e8\uc5b4\uc5d0\ub294 \uc720\ub825\ud55c \ud6c4\ubcf4 \uc18c\uc7ac\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n

\ud56d\uacf5\uc6b0\uc8fc \ubc0f \ubc29\uc704 \uc0b0\uc5c5\uc6a9 \ud558\ub4dc\uc6e8\uc5b4<\/h3>\n\n\n\n

\ud56d\uacf5\uc6b0\uc8fc \uc5c5\uacc4\uc5d0\uc11c\ub294 \uc218\uc2ed \ub144 \ub3d9\uc548 \uace0\uac15\ub3c4 \ud558\uc911\uc774 \uac00\ud574\uc9c0\ub294 \ubd80\ud488\uc5d0 \ub2e8\uc870 4340 \ud569\uae08\uc744 \uc0ac\uc6a9\ud574 \uc654\uc73c\uba70, \uc774\ub7ec\ud55c \uc624\ub79c \uc0ac\uc6a9 \uc774\ub825 \ub355\ubd84\uc5d0 \uc774 \ud569\uae08\uc740 \ud2b9\uc815 \uc801\uce35 \uc81c\uc870(AM) \ubd80\ud488\uc5d0\ub3c4 \ub9e4\ub825\uc801\uc778 \uc18c\uc7ac\ub85c \uc790\ub9ac\ub9e4\uae40\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4. \ub300\ud45c\uc801\uc778 \uc801\uc6a9 \uc0ac\ub840\ub85c\ub294 2\ucc28 \uad6c\uc870\uc6a9 \ube0c\ub798\ud0b7, \uc561\ucd94\uc5d0\uc774\ud130 \ud558\uc704 \uad6c\uc131\ud488, \ud558\uc911 \uc9c0\uc9c0 \ud53c\ud305, \uae30\uc5b4\ubc15\uc2a4 \uc694\uc18c, \uadf8\ub9ac\uace0 \uc778\uc131\uc774 \uc911\uc694\ud55c \uc218\ub9ac \uac00\ub2a5\ud55c \ubd80\ud488 \ub4f1\uc774 \uc788\uc2b5\ub2c8\ub2e4. \uc778\uc99d \uae30\uc900\uc740 \uc2dc\uc81c\ud488 \uc81c\uc791\ubcf4\ub2e4 \ub354 \uc5c4\uaca9\ud558\uc9c0\ub9cc, \uc774 \ud569\uae08\uc758 \uc624\ub79c \uc0ac\uc6a9 \uc774\ub825\uc740 \uc5d4\uc9c0\ub2c8\uc5b4\ub4e4\uc774 \uc5f4\ucc98\ub9ac \uacf5\uc815\uacfc \ud30c\uad34 \uc591\uc0c1\uc744 \uc774\ud574\ud558\ub294 \ub370 \ub3c4\uc6c0\uc774 \ub429\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc790\ub3d9\ucc28, \ubaa8\ud130\uc2a4\ud3ec\uce20 \ubc0f \uad6c\ub3d9\uacc4 \ubd80\ud488<\/h3>\n\n\n\n

\uc790\ub3d9\ucc28 \ubc0f \ubaa8\ud130\uc2a4\ud3ec\uce20 \ubd84\uc57c\uc5d0\uc11c 4340\uc740 \uae30\uc5b4, \uc0e4\ud504\ud2b8, \ud5c8\ube0c, \uc694\ud06c, \uadf8\ub9ac\uace0 \uace0\ud558\uc911\uc774 \uac00\ud574\uc9c0\ub294 \uace0\uc815 \uc7a5\uce58\uc5d0 \ub110\ub9ac \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \ub0b4\ubd80 \uc724\ud65c \uacbd\ub85c, \uc911\ub7c9 \ucd5c\uc801\ud654\ub41c \uc6f9, \ub610\ub294 \uc18c\ub7c9 \uc0dd\uc0b0 \ubaa8\ub378\uc774 \ud544\uc694\ud55c \uacbd\uc6b0 \uc801\uce35 \uc81c\uc870\uac00 \ud2b9\ud788 \uc720\uc6a9\ud569\ub2c8\ub2e4. \uc0ac\uc6a9\uc790\ub294 \ub300\ud615 \ub2e8\uc870\ud488\uc5d0\uc11c \ubcf5\uc7a1\ud55c \ube14\ub7ad\ud06c\ub97c \uae30\uacc4 \uac00\uacf5\ud558\ub294 \ub300\uc2e0, \uadfc\uc0ac \ud615\uc0c1(near-net-shape)\uc744 3D \ud504\ub9b0\ud305\ud55c \ud6c4 \uc911\uc694\ud55c \ud45c\uba74\ub9cc \uc815\ubc00 \uac00\uacf5\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\uacf5\uad6c, \uace0\uc815\uad6c \ubc0f \uc0b0\uc5c5\uc6a9 \uae30\uacc4<\/h3>\n\n\n\n

\uacf5\uad6c \uc81c\uc791\ub3c4 \ub610 \ub2e4\ub978 \uc2e4\uc6a9\uc801\uc778 \ud65c\uc6a9 \uc0ac\ub840\ub85c, \ud2b9\ud788 \uacac\uace0\ud55c \uac15\ucca0 \ucf54\uc5b4\uac00 \ud544\uc694\ud55c \ub9de\ucda4\ud615 \ub2e4\uc774, \uc9c0\uadf8, \uadf8\ub9ac\ud37c, \uc218\ub9ac\uc6a9 \uc2ac\ub9ac\ube0c \ubc0f \ub9c8\ubaa8\uac00 \uc2ec\ud55c \uae30\uacc4 \ubd80\ud488\uc5d0 \uc801\ud569\ud569\ub2c8\ub2e4. \ub610\ud55c 4340\uc740 \uac15\ucca0 \ud504\ub9ac\ud3fc\uc744 \uc801\uce35 \uc81c\uc870\ud55c \ud6c4 \uae30\uacc4 \uac00\uacf5, \uc5f4\ucc98\ub9ac \ub610\ub294 \ud45c\uba74 \uacf5\uc815\uc744 \uac70\uce58\ub294 \ud558\uc774\ube0c\ub9ac\ub4dc \uc81c\uc870\uc758 \uae30\ucd08 \uc18c\uc7ac\ub85c\ub3c4 \uc0ac\uc6a9\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc0dd\uc0b0 \ud658\uacbd\uc5d0\uc11c \uc774 \ud569\uae08\uc758 \uc798 \uc54c\ub824\uc9c4 \ud6c4\uac00\uacf5 \ud2b9\uc131\uc740 \ub35c \uc77c\ubc18\uc801\uc778 \uac15\uc885\uc5d0 \ube44\ud574 \uc778\uc99d \uc7a5\ubcbd\uc744 \ub0ae\ucdb0\uc90d\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc11d\uc720\u00b7\uac00\uc2a4, \uc5d0\ub108\uc9c0 \ubc0f \uc911\uc7a5\ube44<\/h3>\n\n\n\n

\uace0\ubd80\ud558 \uc0e4\ud504\ud2b8, \ucee4\ud50c\ub9c1, \ud38c\ud504 \ubd80\ud488 \ubc0f \ud604\uc7a5 \uc218\ub9ac\uc6a9 \ud558\ub4dc\uc6e8\uc5b4\ub294 \ubd80\uc2dd \uc870\uac74\uc774 \uc800\ud569\uae08\uac15\uacfc \ud638\ud658\ub418\ub294 \uacbd\uc6b0, \uc5d0\ub108\uc9c0 \ubc0f \uc11d\uc720\u00b7\uac00\uc2a4 \uc11c\ube44\uc2a4 \ubd84\uc57c\uc5d0\uc11c \uc0ac\uc6a9\ub420 \uc218 \uc788\ub294 \uc7a0\uc7ac\uc801 \ud6c4\ubcf4\uc785\ub2c8\ub2e4. \uc774 \ud569\uae08\uc740 \uc5fc\ud654\ubb3c \ub610\ub294 \uc0b0\uc131 \ud658\uacbd\uc5d0 \ub178\ucd9c\ub418\ub294 \uac83\ubcf4\ub2e4 \ucda9\uaca9, \ucda9\uaca9 \ud558\uc911 \ub610\ub294 \ud53c\ub85c\uac00 \ub354 \uc911\uc694\ud55c \uacbd\uc6b0\uc5d0 \ud2b9\ud788 \uc720\uc6a9\ud569\ub2c8\ub2e4. \ubd80\uc2dd\uc131\uc774 \ub354 \uac15\ud55c \ub9e4\uccb4\uc5d0\uc11c\ub294 \uc5ec\uc804\ud788 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc774\ub098 \ub2c8\ucf08 \uae30\ubc18 \ub300\uccb4\uc7ac\uac00 \uc120\ud638\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc758\ub8cc \ubc0f \uc804\ubb38 \ubd84\uc57c<\/h3>\n\n\n\n

4340\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \uc8fc\uc694 \uc758\ub8cc\uc6a9 \uc784\ud50c\ub780\ud2b8 \ud569\uae08\uc73c\ub85c \uc0ac\uc6a9\ub418\uc9c0 \uc54a\ub294\ub370, \uc774\ub294 \ub0b4\uc2dd\uc131 \ubc0f \uc0dd\uccb4\uc801\ud569\uc131 \uc694\uac74\uc0c1 \uc784\ud50c\ub780\ud2b8 \uc6a9\ub3c4\ub85c \uc124\uacc4\ub41c \ud2f0\ud0c0\ub284, \ucf54\ubc1c\ud2b8-\ud06c\ub86c \ub610\ub294 \uc2a4\ud14c\uc778\ub9ac\uc2a4 \uc2dc\uc2a4\ud15c\uc774 \uc8fc\ub85c \uc120\ud638\ub418\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4. \uadf8\ub7ec\ub098 \uc678\ubd80 \uacf5\uad6c, \uc815\ud615\uc678\uacfc\uc6a9 \uae30\uad6c \uace0\uc815 \uc7a5\uce58 \ub610\ub294 \uc784\ud50c\ub780\ud2b8\uac00 \uc544\ub2cc \uae30\uacc4 \ubd80\ud488\uc5d0\ub294 \uc5ec\uc804\ud788 \uc0ac\uc6a9\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc6a9\ub3c4\uac00 \ub0b4\uc2dd\uc131 \ub610\ub294 \uc0dd\uccb4\uc801\ud569\uc131\uc774 \uc694\uad6c\ub418\ub294 \uc2dc\uc2a4\ud15c\uc73c\ub85c \uc804\ud658\ub420 \uacbd\uc6b0, \uc0ac\uc6a9\uc790\ub4e4\uc740 \uc885\uc885 \ub2e4\uc74c\uc744 \ube44\uad50 \ub300\uc0c1\uc73c\ub85c \uc0bc\uc2b5\ub2c8\ub2e4. \ud2f0\ud0c0\ub284 \ud569\uae08 \ubd84\ub9d0 \uc81c\ud488\uad70<\/a> 4340\uc744 \ubd80\uc801\ud569\ud55c \ud658\uacbd\uc5d0 \uc5b5\uc9c0\ub85c \ub07c\uc6cc \ub9de\ucd94\ub824\uace0 \ud558\uae30\ubcf4\ub2e4\ub294.<\/p>\n\n\n\n

\ub300\uccb4 \uc18c\uc7ac\uc640\uc758 \ube44\uad50<\/h2>\n\n\n\n

4340 \ud569\uae08\uac15 \ubd84\ub9d0\uc744 \uc120\ud0dd\ud55c\ub2e4\ub294 \uac83\uc740 \ub300\uac1c \uc720\uc0ac\ud55c \ubb38\uc81c\ub97c \uac01\uae30 \ub2e4\ub978 \ubc29\uc2dd\uc73c\ub85c \ud574\uacb0\ud558\ub294 \ub2e4\ub978 \ucca0\uacc4 \ubc0f \ube44\ucca0\uacc4 \uc801\uce35 \uc81c\uc870(AM) \uc18c\uc7ac\uc640 \uc774\ub97c \ube44\uad50\ud558\ub294 \uac83\uc744 \uc758\ubbf8\ud569\ub2c8\ub2e4. \ud575\uc2ec \uace0\ub824 \uc0ac\ud56d\uc740 \uc124\uacc4\uc5d0 \ub354 \ub192\uc740 \ub0b4\uc2dd\uc131, \ub354 \ub0ae\uc740 \ubc00\ub3c4, \ub354 \uac04\ub2e8\ud55c \uc5f4\ucc98\ub9ac, \ub610\ub294 \ub354 \ub0ae\uc740 \uc6d0\uc790\uc7ac \ube44\uc6a9\uc774 \ud544\uc694\ud55c\uc9c0 \uc5ec\ubd80\uc785\ub2c8\ub2e4. \uc544\ub798 \ud45c\ub294 4340\uc744 \uae08\uc18d \uc801\uce35 \uc81c\uc870\uc5d0 \uc77c\ubc18\uc801\uc73c\ub85c \uc0ac\uc6a9\ub418\ub294 \ub300\uccb4 \uc18c\uc7ac\ub4e4\uacfc \ube44\uad50\ud558\uc5ec \uc815\ub9ac\ud55c \uac83\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc7ac\uc9c8<\/th>\ubc00\ub3c4(g\/cm\u00b3)<\/th>\uc77c\ubc18\uc801\uc778 \uccb4\ub825 \uc218\uc900<\/th>\uc5f4\ucc98\ub9ac\uc131<\/th>\ub0b4\uc2dd\uc131<\/th>\uc0c1\ub300\uc801 \ube44\uc6a9<\/th>AM \uc778\uc1c4 \uc801\ud569\uc131<\/th>\uac00\uc7a5 \uc801\ud569\ud55c \uc0ac\uc6a9 \uc0ac\ub840<\/th><\/tr><\/thead>
4340 \ud569\uae08\uac15 \ubd84\ub9d0<\/td>7.83\u20137.85<\/td>\ub192\uc74c ~ \ub9e4\uc6b0 \ub192\uc74c<\/td>\ud0c1\uc6d4\ud568, \ub2f4\uae08\uc9c8 \ubc0f \ud15c\ud37c\ub9c1<\/td>\ub0ae\uc74c\uc5d0\uc11c \ubcf4\ud1b5<\/td>Medium<\/td>\uc801\uc808\ud55c \ub9e4\uac1c\ubcc0\uc218\ub97c \uc0ac\uc6a9\ud560 \ub54c \ud6a8\uacfc\uc801<\/td>\uace0\ubd80\ud558\uc6a9 \uae30\uc5b4, \uc0e4\ud504\ud2b8, \ubd80\uc18d\ud488, \uacf5\uad6c<\/td><\/tr>
4140 \ud569\uae08\uac15 \ubd84\ub9d0<\/td>\uc57d 7.85<\/td>\ubcf4\ud1b5\uc5d0\uc11c \ub192\uc74c<\/td>\ub9e4\uc6b0 \uc88b\uc74c<\/td>\ub0ae\uc74c\uc5d0\uc11c \ubcf4\ud1b5<\/td>Lower<\/td>\uc591\ud638<\/td>\ud569\uae08 \ube44\uc6a9\uc774 \ub0ae\uc740 \uc77c\ubc18 \uc5d4\uc9c0\ub2c8\uc5b4\ub9c1 \ubd80\ud488<\/td><\/tr>
\ub9c8\ub808\uc774\uc9d5\uac15 \ubd84\ub9d0<\/td>\uc57d 8.0<\/td>\ub9e4\uc6b0 \ub192\uc74c<\/td>\ud0c1\uc6d4\ud55c, \uc5f4\uacbd\ud654\uc131<\/td>\ubcf4\ud1b5<\/td>\ub192\uc74c<\/td>\uc6b0\uc218<\/td>\uc815\ubc00 \uacf5\uad6c \ubc0f \ucd08\uace0\uac15\ub3c4 \uc801\uce35 \uc81c\uc870 \ubd80\ud488<\/td><\/tr>
17-4 PH \uc2a4\ud14c\uc778\ub9ac\uc2a4 \ubd84\ub9d0<\/td>\uc57d 7.75<\/td>\ub192\uc74c<\/td>\uc88b\uc74c, \uce68\uc804 \uacbd\ud654<\/td>\uc591\ud638<\/td>\uc911\uac04\uc5d0\uc11c \ub192\uc74c<\/td>\ub9e4\uc6b0 \uc88b\uc74c<\/td>\uac15\ub3c4\uc640 \ub0b4\uc2dd\uc131\uc774 \ubaa8\ub450 \ud544\uc694\ud55c \uad6c\uc870\uc6a9 \ubd80\ud488<\/td><\/tr>
Ti-6Al-4V \ubd84\ub9d0<\/td>4.43\uacbd<\/td>\ub192\uc740 \ube44\uac15\ub3c4<\/td>\uc591\ud638<\/td>\uc6b0\uc218<\/td>\ub192\uc74c<\/td>\uc6b0\uc218<\/td>\uacbd\ub7c9 \ud56d\uacf5\uc6b0\uc8fc \ub610\ub294 \uc758\ub8cc\uc6a9 \ubd80\ud488<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

4340 \ub300 4140<\/h3>\n\n\n\n

4140\uc740 \uc0b0\uc5c5 \ubd84\uc57c\uc5d0\uc11c \ud3ed\ub113\uac8c \uc0ac\uc6a9\ub418\ub294 \ud06c\ub86c-\ubab0\ub9ac\ube0c\ub374\uac15(Cr-Mo)\uc774\uae30 \ub54c\ubb38\uc5d0 \ube44\uc6a9 \uba74\uc5d0\uc11c \ube44\uad50 \ub300\uc0c1\uc73c\ub85c \uc0bc\uae30\uc5d0 \ud0c0\ub2f9\ud569\ub2c8\ub2e4. \ub2e4\ub9cc, 4340\uc740 \ub2c8\ucf08\uc774 \ucca8\uac00\ub418\uc5b4 \uc788\uc5b4 \uc77c\ubc18\uc801\uc73c\ub85c \ub192\uc740 \uac15\ub3c4\uc5d0\uc11c\ub3c4 \ub354 \uc6b0\uc218\ud55c \uacbd\ud654\uc131\uacfc \uc778\uc131\uc744 \uc81c\uacf5\ud55c\ub2e4\ub294 \uc810\uc774 \ucc28\uc774\uc810\uc785\ub2c8\ub2e4. \uc791\uace0 \ud558\uc911\uc774 \uc801\uc740 \ubd80\ud488\uc758 \uacbd\uc6b0 \uadf8 \ucc28\uc774\ub294 \ubbf8\ubbf8\ud560 \uc218 \uc788\uc9c0\ub9cc, \ub450\uaed8\uac00 \ub450\uaebc\uc6b4 \ubd80\uc7ac\ub098 \ucda9\uaca9 \ud558\uc911\uc774 \uac00\ud574\uc9c0\ub294 \uc6a9\ub3c4\uc758 \uacbd\uc6b0 4340\uc740 \uc885\uc885 \uadf8 \uac00\uaca9 \ucc28\uc774\ub97c \ucda9\ubd84\ud788 \uc815\ub2f9\ud654\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

4340 \ub300 \ub9c8\ub808\uc774\uc9d5\uac15<\/h3>\n\n\n\n

\ub9c8\ub808\uc774\uc9d5\uac15\uc740 \uc801\uce35 \uc81c\uc870(AM) \ubd84\uc57c\uc5d0\uc11c \ub110\ub9ac \uc0ac\uc6a9\ub418\ub294 \ubca4\uce58\ub9c8\ud06c \uc18c\uc7ac\ub85c, \uc801\uce35 \uac00\uacf5\uc774 \uc6a9\uc774\ud558\uace0 \uc2dc\ud6a8 \ucc98\ub9ac \ud6c4 \ub9e4\uc6b0 \ub192\uc740 \uac15\ub3c4\ub97c \ubc1c\ud718\ud558\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4. \uadf8\ub7ec\ub098 \ub9c8\ub808\uc774\uc9d5 \uc2dc\uc2a4\ud15c\uc740 \ubcf4\ub2e4 \uc804\ubb38\ud654\ub418\uc5b4 \uc788\uace0 \ube44\uc6a9\uc774 \ub354 \ub9ce\uc774 \ub4dc\ub294 \ubc18\uba74, 4340\uac15\uc740 \uae30\uc874\uc758 \ub2f4\uae08\uc9c8 \ubc0f \ud15c\ud37c\ub9c1 \ud2b9\uc131\uc774 \ud5c8\uc6a9 \uac00\ub2a5\ud55c \ubc94\uc704 \ub0b4\uc5d0 \uc788\uace0, \uc0ac\uc6a9\uc790\uac00 \uc804\uc6a9 \uacf5\uad6c \ud569\uae08\ubcf4\ub2e4\ub294 \uc775\uc219\ud55c \uacf5\uc5c5\uc6a9 \uac15\uc7ac\ub97c \uc120\ud638\ud558\ub294 \uacbd\uc6b0 \uc5ec\uc804\ud788 \ub9e4\ub825\uc801\uc778 \uc120\ud0dd\uc9c0\uc785\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uc120\ud0dd\uc740 \uc885\uc885 \ub178\ud654 \uacfc\uc815 \uc911\uc758 \uce58\uc218 \uc548\uc815\uc131\uc774 \ubcf4\ub2e4 \uc804\ud1b5\uc801\uc778 \uc800\ud569\uae08\uac15 \ubc29\uc2dd\uc758 \uc7a5\uc810\uc744 \uc0c1\uc1c4\ud560 \ub9cc\ud07c \uc911\uc694\ud55c\uc9c0 \uc5ec\ubd80\uc5d0 \ub2ec\ub824 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

4340 \ub300 17-4 PH \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15<\/h3>\n\n\n\n

\ub0b4\uc2dd\uc131\uc774 \uc911\uc694\ud55c \uacbd\uc6b0, 17-4 PH\ub294 4340\ubcf4\ub2e4 \ub354 \uc801\ud569\ud560 \uc218 \uc788\uc73c\uba70, \ub3d9\uc2dc\uc5d0 \ub6f0\uc5b4\ub09c \uae30\uacc4\uc801 \uc131\ub2a5\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. \ud558\uc9c0\ub9cc \ud658\uacbd\uc774 \ud1b5\uc81c\ub418\uace0 \ucd5c\uace0 \uc218\uc900\uc758 \uc778\uc131\uc774\ub098 \uacbd\ud654\ubd80 \uc131\ub2a5\uc774 \uc6b0\uc120\uc2dc\ub418\ub294 \uacbd\uc6b0\uc5d0\ub294 4340\uc774 \uc5ec\uc804\ud788 \ub354 \ub098\uc740 \uc120\ud0dd\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uc7a5\ub2e8\uc810\uc744 \uace0\ub824\ud558\uc5ec \uade0\ud615\uc744 \ub9de\ucd94\ub824\ub294 \uc124\uacc4\uc790\ub294 \ub2e4\uc74c\uacfc \uac19\uc740 \uc778\uc811 \ub4f1\uae09\ub3c4 \uac80\ud1a0\ud574 \ubcfc \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub2c8\ucf08 \uae30\ubc18 \ud569\uae08 \ubd84\ub9d0<\/a> \uac15\ub3c4\uc640 \uac00\ud639\ud55c \ud658\uacbd\uc5d0 \ub300\ud55c \ub0b4\uc131\uc774 \ubaa8\ub450 \uc911\uc694\ud574\uc9c8 \ub54c.<\/p>\n\n\n\n

\ub2f9\uc0ac<\/h2>\n\n\n\n

am-printing.com\uc744 \uc6b4\uc601\ud558\ub294 \uc0c1\ud558\uc774 \ud2b8\ub8e8\uc5b4 \ud14c\ud06c\ub180\ub85c\uc9c0(Shanghai Truer Technology Co., Ltd.)\ub294 2009\ub144\uc5d0 \uc124\ub9bd\ub418\uc5c8\uc73c\uba70, 2019\ub144\uc5d0 \uc801\uce35 \uc81c\uc870 \uc0ac\uc5c5\uc744 \uc2dc\uc791\ud588\uc2b5\ub2c8\ub2e4. \ud68c\uc0ac \uc815\ubcf4\uc5d0 \ub530\ub974\uba74, \uc774 \uc0ac\uc5c5\ubd80\ub294 3D \ud504\ub9b0\ud305 \ubd84\ub9d0 \uc81c\uc870 \uc7a5\ube44 \ubc0f \uad00\ub828 \uc11c\ube44\uc2a4\ub97c \uae08\uc18d \ubd84\ub9d0 \uacf5\uae09\uacfc \ud1b5\ud569\ud558\uace0 \uc788\uc73c\uba70, \uc5ec\uae30\uc5d0\ub294 SEBM \uc7a5\ube44, PREP \ubd84\ub9d0 \uc81c\uc870 \uc7a5\ube44, GA \uad00\ub828 \ubd84\ub9d0 \uc0dd\uc0b0, \ud2f0\ud0c0\ub284, \ub2c8\ucf08, \ucf54\ubc1c\ud2b8, \uad6c\ub9ac, \uc54c\ub8e8\ubbf8\ub284, \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15 \uc2dc\uc2a4\ud15c \uc804\ubc18\uc5d0 \uac78\uce5c \uad6c\ud615 \ubd84\ub9d0\uc740 \ubb3c\ub860 TiNi, TiTa, TiAl, TiNbZr, CoCrMo\uc640 \uac19\uc740 \ud569\uae08\uc744 \ud3ec\ud568\ud569\ub2c8\ub2e4. \uc774 \ud68c\uc0ac\uc758 \uba85\uc2dc\ub41c \uacf5\uc815 \ubc94\uc704\uc5d0\ub294 SLM, SEBM, DED, \ub808\uc774\uc800 \ud074\ub798\ub529, \ubd84\ub9d0 \uc57c\uae08, MIM, HIP, \ub0c9\uac04 \ubc0f \uc5f4\uac04 \uc2a4\ud504\ub808\uc774, \uc6a9\uc811, \ucf54\ud305 \ub4f1\uc774 \ud3ec\ud568\ub418\uba70, \uc758\ub8cc, \ud56d\uacf5\uc6b0\uc8fc, \uc6d0\uc790\ub825, 3C \uc804\uc790\uc81c\ud488, \uc218\uacf5\uad6c, \uc6d0\uaca9 \uc870\uc885 \uc790\ub3d9\ucc28 \ubd80\ud488 \ub4f1\uc758 \ubd84\uc57c\uc5d0 \uc11c\ube44\uc2a4\ub97c \uc81c\uacf5\ud558\uace0 \uc788\ub2e4.<\/p>\n\n\n\n

\uc790\uc8fc \ubb3b\ub294 \uc9c8\ubb38<\/h2>\n\n\n\n

Q1. 4340 \ud569\uae08\uac15 \ubd84\ub9d0\uc740 \ub808\uc774\uc800 \ud30c\uc6b0\ub354 \ubca0\ub4dc \uc735\ud569 \uacf5\uc815\uc5d0 \uc801\ud569\ud55c\uac00\uc694?<\/strong>
\ub124, 4340 \ud569\uae08\uac15 \ubd84\ub9d0\uc740 \uc801\uc808\ud55c \uc785\uc790 \ud06c\uae30 \ubd84\ud3ec, \ud615\ud0dc \ubc0f \uccad\uc815\ub3c4\ub97c \uac16\ucd94\uace0 \uacf5\uae09\ub420 \uacbd\uc6b0 \ub808\uc774\uc800 \ud30c\uc6b0\ub354 \ubca0\ub4dc \uc735\ud569 \uacf5\uc815\uc5d0 \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc131\uacf5 \uc5ec\ubd80\ub294 \ub2e8\uc21c\ud788 \ud654\ud559 \uc131\ubd84\ubfd0\ub9cc \uc544\ub2c8\ub77c, \uacf5\uc815 \ub9e4\uac1c\ubcc0\uc218 \uac1c\ubc1c, \uc794\ub958 \uc751\ub825 \uc81c\uc5b4 \ubc0f \uc801\uce35 \ud6c4 \uc5f4\ucc98\ub9ac \uacc4\ud68d\uc5d0 \ub2ec\ub824 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

Q2. 4340 \ud569\uae08\uac15 \ubd84\ub9d0\uc740 4140 \ubd84\ub9d0\uacfc \ube44\uad50\ud588\uc744 \ub54c \uc5b4\ub5a4 \ucc28\uc774\uac00 \uc788\ub098\uc694?<\/strong>
4340\uc740 \ud06c\ub86c\uacfc \ubab0\ub9ac\ube0c\ub374 \uc678\uc5d0\ub3c4 \ub2c8\ucf08\uc744 \ud568\uc720\ud558\uace0 \uc788\uae30 \ub54c\ubb38\uc5d0, \uc77c\ubc18\uc801\uc73c\ub85c \ub192\uc740 \uac15\ub3c4 \uc218\uc900\uc5d0\uc11c \ub354 \ub6f0\uc5b4\ub09c \uacbd\ud654\uc131\uacfc \ub354 \uc6b0\uc218\ud55c \uc778\uc131\uc744 \ub098\ud0c0\ub0c5\ub2c8\ub2e4. \uc751\ub825\uc774 \ud06c\uac8c \uac00\ud574\uc9c0\ub294 \ubd80\ud488\uc774\ub098 \ub450\uaed8\uac00 \ub450\uaebc\uc6b4 \ub2e8\uba74\uc758 \uacbd\uc6b0, \ub2f4\uae08\uc9c8 \ubc0f \ud15c\ud37c\ub9c1 \ud6c4 \uc774\ub7ec\ud55c \ucc28\uc774\uac00 \uc0c1\ub2f9\ud788 \ub450\ub4dc\ub7ec\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

Q3. \uc801\uce35 \uc81c\uc870(AM)\uc5d0\uc11c 4340 \ud569\uae08\uac15 \ubd84\ub9d0\uc758 \uc77c\ubc18\uc801\uc778 \uc785\uc790 \ud06c\uae30\ub294 \uc5bc\ub9c8\uc785\ub2c8\uae4c?<\/strong>
LPBF\uc758 \uacbd\uc6b0 \uc77c\ubc18\uc801\uc778 \uc808\ub2e8 \ub450\uaed8\ub294 \uc57d 15~45 \u00b5m \ub610\ub294 15~53 \u00b5m\uc778 \ubc18\uba74, DED \ubc0f \ud074\ub798\ub529 \uacf5\uc815\uc5d0\uc11c\ub294 45~105 \u00b5m \ub610\ub294 53~150 \u00b5m\uac00 \uc8fc\ub85c \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \uc801\uc808\ud55c \ubc94\uc704\ub294 \uce35 \ub450\uaed8, \ub178\uc990 \uc124\uacc4, \uc5d0\ub108\uc9c0 \uc785\ub825\ub7c9 \ubc0f \ub300\uc0c1 \uae30\uacc4 \ud50c\ub7ab\ud3fc\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9d1\ub2c8\ub2e4.<\/p>\n\n\n\n

Q4. 4340 \ud569\uae08\uac15 \ubd84\ub9d0\uc740 \uc801\uce35 \uc778\uc1c4 \ud6c4 \uc5f4\ucc98\ub9ac\uac00 \ud544\uc694\ud55c\uac00\uc694?<\/strong>
\uac00\uc7a5 \uae4c\ub2e4\ub85c\uc6b4 \uc6a9\ub3c4\uc758 \uacbd\uc6b0, \uadf8\ub807\uc2b5\ub2c8\ub2e4. \uc751\ub825 \uc81c\uac70 \ud6c4\uc5d0\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654, \ub2f4\uae08\uc9c8, \uadf8\ub9ac\uace0 \ud15c\ud37c\ub9c1 \uacf5\uc815\uc744 \uac70\uce58\uba70, \uc774\ub97c \ud1b5\ud574 \ubd80\ud488\uc774 \uc694\uad6c\ub418\ub294 \uacbd\ub3c4, \uac15\ub3c4 \ubc0f \uc778\uc131\uc758 \uade0\ud615\uc744 \ub2ec\uc131\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

Q5. 4340 \ud569\uae08\uac15 \ubd84\ub9d0\uc740 \ub0b4\uc2dd\uc131\uc774 \uc788\uc2b5\ub2c8\uae4c?<\/strong>
\uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc774\ub098 \ub2c8\ucf08\uacc4 \ud569\uae08\uacfc\ub294 \ub2e4\ub985\ub2c8\ub2e4. \uc774 \ud569\uae08\uc740 \ubcf8\uc9c8\uc801\uc778 \ub0b4\uc2dd\uc131\uc774 \uc81c\ud55c\uc801\uc774\uae30 \ub54c\ubb38\uc5d0, \ubd80\ud488\uc774 \uc2b5\uae30, \uc5fc\ubd84 \ub610\ub294 \ubd80\uc2dd\uc131\uc774 \uac15\ud55c \uacf5\uc815 \ub9e4\uccb4\uc5d0 \ub178\ucd9c\ub420 \uacbd\uc6b0 \ud45c\uba74 \ubcf4\ud638 \ucc98\ub9ac, \ud1b5\uc81c\ub41c \ud658\uacbd \uc720\uc9c0, \ub610\ub294 \ub2e4\ub978 \uacc4\uc5f4\uc758 \ud569\uae08 \uc0ac\uc6a9\uc774 \ud544\uc694\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

Q6. 4340 \ud569\uae08\uac15 \ubd84\ub9d0\uc758 \ud61c\ud0dd\uc744 \uac00\uc7a5 \ub9ce\uc774 \ubcf4\ub294 \uc0b0\uc5c5 \ubd84\uc57c\ub294 \uc5b4\ub514\uc778\uac00\uc694?<\/strong>
\ud56d\uacf5\uc6b0\uc8fc, \ubaa8\ud130\uc2a4\ud3ec\uce20, \uc0b0\uc5c5\uc6a9 \uacf5\uad6c, \uc911\uc7a5\ube44 \ubc0f \uc77c\ubd80 \uc5d0\ub108\uc9c0 \ubd84\uc57c\uac00 \uc774 \ud569\uae08\uc758 \uc801\uc6a9\uc5d0 \uac00\uc7a5 \uc801\ud569\ud55c \ubd84\uc57c\uc785\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ubd84\uc57c\uc5d0\uc11c\ub294 \ubd80\ud488\uc774 \ub192\uc740 \ud558\uc911, \ucda9\uaca9 \ub610\ub294 \ud53c\ub85c\ub97c \uacac\ub38c\uc57c \ud558\uac70\ub098, \uc801\uce35 \uc81c\uc870\ub97c \ud1b5\ud574 \uac00\uacf5 \ud3d0\uae30\ubb3c\uc744 \uc904\uc774\uac70\ub098 \ub354 \ubcf5\uc7a1\ud55c \ud615\uc0c1\uc744 \uad6c\ud604\ud560 \uc218 \uc788\ub294 \uacbd\uc6b0\uc5d0 \uc774 \ud569\uae08\uc758 \uac00\uce58\ub97c \ub192\uc774 \ud3c9\uac00\ud569\ub2c8\ub2e4.<\/p>","protected":false},"excerpt":{"rendered":"

Quick Answer 4340 alloy steel powder is a nickel-chromium-molybdenum low-alloy steel feedstock used in metal additive manufacturing when designers need high hardenability, strong post-heat-treatment performance, and reliable toughness in demanding parts. It is usually the right choice for high-strength AM components such as gears, shafts, tooling, and aerospace hardware that must handle heavy loads or […]<\/p>\n","protected":false},"author":5,"featured_media":3349,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3408","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/am-printing.com\/ko\/wp-json\/wp\/v2\/posts\/3408","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/am-printing.com\/ko\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/am-printing.com\/ko\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/am-printing.com\/ko\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/am-printing.com\/ko\/wp-json\/wp\/v2\/comments?post=3408"}],"version-history":[{"count":1,"href":"https:\/\/am-printing.com\/ko\/wp-json\/wp\/v2\/posts\/3408\/revisions"}],"predecessor-version":[{"id":3409,"href":"https:\/\/am-printing.com\/ko\/wp-json\/wp\/v2\/posts\/3408\/revisions\/3409"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/am-printing.com\/ko\/wp-json\/wp\/v2\/media\/3349"}],"wp:attachment":[{"href":"https:\/\/am-printing.com\/ko\/wp-json\/wp\/v2\/media?parent=3408"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/am-printing.com\/ko\/wp-json\/wp\/v2\/categories?post=3408"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/am-printing.com\/ko\/wp-json\/wp\/v2\/tags?post=3408"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}