{"id":1491,"date":"2023-12-20T03:40:09","date_gmt":"2023-12-20T03:40:09","guid":{"rendered":"https:\/\/am-printing.com\/?p=1491"},"modified":"2023-12-20T03:44:53","modified_gmt":"2023-12-20T03:44:53","slug":"aluminium-alloy-powder-20231220","status":"publish","type":"post","link":"https:\/\/am-printing.com\/ko\/aluminium-alloy-powder-20231220\/","title":{"rendered":"\uc54c\ub8e8\ubbf8\ub284 \ud569\uae08 \ubd84\ub9d0"},"content":{"rendered":"\n

Aluminium alloy powder<\/a> refers to powder metallurgy forms of aluminium that have been alloyed with elements like silicon, magnesium, zinc, copper, manganese and nickel to create materials with enhanced mechanical and physical properties. By compressing and sintering aluminium alloy powders, engineers can manufacture high-performance components for demanding applications.<\/p>\n\n\n\n

Types of Aluminium Alloy Powder<\/h2>\n\n\n\n

Various aluminium powder alloys are commercially available using different base metals and alloying strategies:<\/p>\n\n\n\n

Alloy Type<\/strong><\/th>Key Alloying Elements<\/strong><\/th>Characteristics<\/strong><\/th><\/tr><\/thead>
Aluminium silicon alloy<\/td>Si: 5-20%<\/td>Excellent fluidity and corrosion resistance<\/td><\/tr>
Al-Si-Mg<\/td>Si, Mg: 0.5-1.5%<\/td>High strength-to-weight ratio<\/td><\/tr>
Al-Mg-Si<\/td>Mg: 1-10% + Si<\/td>Good ductility, formability and machinability<\/td><\/tr>
Al-Zn-Mg-Cu (7xxx)<\/td>Zn, Mg, Cu up to 9%<\/td>Highest strength aluminium PM alloys<\/td><\/tr>
Al-Ni-Co-Cd<\/td>Ni, Co, Cd<\/td>High elastic modulus<\/td><\/tr>
Al-Fe-V-Si<\/td>Fe, V<\/td>Heat treatable – age hardening<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

By balancing composition, powder metallurgy aluminium alloys can achieve combinations of strength, corrosion resistance, weldability, workability and cost effectiveness.<\/p>\n\n\n\n

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SONY DSC<\/figcaption><\/figure>\n\n\n\n

Properties and Characteristics<\/h2>\n\n\n\n

Key properties of aluminium alloy powder<\/a> vary by exact composition but generally offer:<\/p>\n\n\n\n

Property<\/strong><\/th>Characteristics<\/strong><\/th><\/tr><\/thead>
Density<\/td>Low – 2.55 to 2.85 g\/cm3<\/td><\/tr>
Melting point<\/td>560 to 660\u00b0C depending on alloys<\/td><\/tr>
Strength<\/td>150 to 310 MPa tensile strength<\/td><\/tr>
Elastic modulus<\/td>65 to 80 GPa<\/td><\/tr>
Thermal conductivity<\/td>100 to 180 W\/mK , high for metals<\/td><\/tr>
Electrical conductivity<\/td>20 to 38 MS\/m<\/td><\/tr>
Workability<\/td>Good ductility and formability in annealed state<\/td><\/tr>
Corrosion resistance<\/td>Excellent due to self-passivating oxide film<\/td><\/tr>
Recyclability<\/td>Fully reusable scrap value<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

By blending in harder particles and annealing processes, engineers can tailor the material properties for targeted applications.<\/p>\n\n\n\n

Applications and Uses<\/h2>\n\n\n\n

Aluminium alloy powders suit a variety of industrial uses:<\/p>\n\n\n\n

Industry<\/strong><\/th>Common Applications<\/strong><\/th><\/tr><\/thead>
Automotive<\/td>Pistons, transmission and engine parts<\/td><\/tr>
Aerospace<\/td>Structural and satellite components<\/td><\/tr>
Industrial<\/td>Gears, tooling fixtures, shafts<\/td><\/tr>
Military<\/td>Ballistics, ordnance equipment<\/td><\/tr>
Printing<\/td>3D printed prototypes and products<\/td><\/tr>
Sports equipment<\/td>Golf clubs, baseball bats, lacrosse sticks<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Aluminium powder alloys enable lightweight, high performance metal components thanks to their strength, workability and corrosion resistance.<\/p>\n\n\n\n

Specifications and Grades<\/h2>\n\n\n\n

International standards classify aluminium alloy powder grades by:<\/p>\n\n\n\n

Attribute<\/strong><\/th>Measurement Details<\/strong><\/th><\/tr><\/thead>
Alloy designation<\/td>4 digit system denoting composition (e.g. 6061)<\/td><\/tr>
Temper<\/td>Denotes amount of cold working and annealing (F, T4, T6 etc)<\/td><\/tr>
Size<\/td>Screen mesh size distributions (e.g -100\/+325 mesh)<\/td><\/tr>
Shape<\/td>Spherical, nodular, flakes, atomized forms<\/td><\/tr>
Apparent density<\/td>Measured in g\/cm3 based on packing effectiveness<\/td><\/tr>
Flow rate<\/td>Time to flow 50g through Hall apparatus funnel<\/td><\/tr>
Oxide content<\/td>Percent oxygen contamination from exposure<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Powder lots must meet certified chemistry assays and physical property tolerances to ensure performance.<\/p>\n\n\n