选择性激光熔化铝合金的研究进展

Research Progress in Selective Laser Melting of Aluminum Alloys

铝合金由于其密度低且力学性能良好,在汽车、航空航天等工业领域有着广泛的应用。选择性激光熔化(SLM)由于其独特的分层叠加成形工艺,在制造复杂的几何结构和特殊零件定制方面有巨大的潜力。回顾了选择性激光熔化铝合金的研究进展。详细讨论了粉末特性、SLM工艺参数和热处理对铝合金材料成形质量、致密度以及力学性能的影响。总结了近年来SLM制备铝合金材料相关的主要研究结果,为制备高性能SLM铝合金零部件提供理论依据。

Aluminum alloy is widely used in automotive, aerospace and other industrial fields because of its low density and good mechanical properties. Selective laser melting(SLM) has great potential in the manufacture of complex geometrical structures and customization of special parts due to its unique layered superposition forming process. The research progress of selective laser melting of aluminum alloys was reviewed. The effects of powder properties, SLM process parameters and heat treatment on the forming quality, density and mechanical properties of aluminum alloy materials were discussed in detail. The main research results related to the preparation of aluminum alloy materials by SLM in recent years were summarized, which provided a theoretical basis for the preparation of high-performance SLM aluminum alloy parts.