摘要
铜及铜合金具有高导热率和高导电率等优异性能,广泛应用于电子工业、交通运输和航空航天等领域,增材制造技术可使铜及铜合金零部件更为复杂化、精细化、轻量化和整体化.本文分析了铜及铜合金增材制造技术的原理、特点和工艺进展;总结了增材制造铜及铜合金类型,包括纯铜、CuCrZr、CuCrNb和其他铜合金.在此基础上,综述了铜及铜合金增材制造技术的研究进展,包括降低激光反射率、调控微观结构等,讨论了增材制造铜及铜合金在航空航天、电子工业等方面的应用.最后,展望了增材制造铜及铜合金的发展趋势.
Abstract
Copper and its alloys exhibit excellent properties,such as high thermal conductivity and high electrical conductivity,which are widely used in electronic industry,transportation,aerospace and other fields.Additive manufacturing technology can make copper and its alloy parts possess a more complicated,refined,light and integrated structure.In this work,the principles,characteristics and process advancements of additive manufacturing technology for copper and its alloys were analyzed.The types of copper and its alloys including pure copper,CuCrZr,CuCrNb and other copper alloys fabricated by additive manufacturing were summarized.On this basis,the research progress of additive manufacturing technologies for copper and its alloys including reducing the laser reflectivity of copper and regulating microstructure,etc were summarized.The application of copper and its alloys fabricated by additive manufacturing in aerospace,electronics industry and others were discussed.Finally,the development tendency of additively manufactured copper and its alloys was prospected.