Microstructure and Properties of Multi-pass Continuous Extrusion 3003 Aluminum Alloy

【China Aluminum Network】 Aluminum-manganese alloy is a deformable aluminum alloy that cannot be strengthened by heat treatment because of its excellent properties such as low density, moderate strength, good plasticity, good welding performance, strong corrosion resistance, good ductility, smooth surface, etc. Performance is increasingly used in aerospace, automotive, electronics and microelectronics, energy, and information science. 3003 is a representative rust-proof aluminum alloy of Al-Mn alloy. Since Mn is added, 3003 aluminum alloy is slightly stronger and more resistant to corrosion than pure aluminum. Grain refinement is an ideal measure to improve the comprehensive mechanical properties of 3003 aluminum alloy. The use of equal-angular-angle extrusion, multi-directional compression, and roll-to-roll technology enables the refinement of metal structures through repeated repeated strong strains. 3003 aluminum alloy pipe is usually produced by continuous extrusion method. Theoretical analysis shows that the 3003 rod billet is subjected to multi-pass continuous extrusion before extrusion, which can refine the microstructure of the alloy and improve its mechanical properties. In the multi-pass continuous extrusion process, changes in the microstructure and properties of 3003 aluminum alloy will have a significant impact on the subsequent processing and use of the material.