摘要
纯铜/铜合金具有优异的导热、导电性能,是重要的工业材料。以粉末床激光熔融为代表的激光增材制造技术具有优良的设计自由度及成形精度,是增材制造的主流发展方向。纯铜/铜合金的粉末床激光熔融与传统加工制造技术相比,前者能够更好地发挥铜优异的性能,在电子电气、汽车、航空航天等导热/导电高需求领域具有广阔的应用前景。本文综述了以纯铜/铜合金为代表的激光高反射材料的粉末床激光熔融的研究现状、面临的重要问题以及相应的解决对策分析。在此基础上,结合本课题组在纯铜/铜合金粉末床激光熔融过程的经验,指出运用蓝光、绿光等短波长激光器进行纯铜/铜合金等高反射材料的粉末床激光熔融是未来的研究热点与发展方向。
Pure copper/copper alloy has excellent thermal and electrical conductivity,which is an important industrial material.Laser powder bed fusion,which represents the laser additive manufacturing technology,has excellent design freedom and forming accuracy,and is the mainstream development direction of additive manufacturing.Compared with traditional processing and manufacturing technology,the laser powder bed fusion of pure copper/copper alloy can give better play to the excellent performance of copper,and has broad application prospects in the fields of high thermal conductivity/electrical conductivity such as electrical and electronic,automotive,aerospace and other fields.The current research status of laser powder bed fusion of laser high-reflective materials represented by pure copper/copper alloys,the important problems they face,and the analysis of corresponding solutions were reviewed in this paper.On this basis,combined with the team's experience in the laser powder bed fusion process of pure copper/copper alloy,it was pointed out that the use of blue,green and other short-wavelength lasers for the powder bed laser fusion of pure copper/copper alloy and other highly reflective materials is a future study hot spots and development directions.
作者
朱勇强
杨永强
王迪
陈峰
邓澄
陈晓君
ZHU Yongqiang;YANG Yongqiang;WANG Di;CHEN Feng;DENG Cheng;CHEN Xiaojun(School of Mechanical and Automotive Engineering,South China University of Technology,Guangzhou 510641,China)
出处
《材料工程》
EI
CAS
CSCD
北大核心
2022年第6期1-11,共11页
Journal of Materials Engineering
基金
广东省重点领域研发计划项目(2020B090922002)。
关键词
粉末床激光熔融
高反射材料
激光吸收率
纯铜/铜合金
laser powder bed fusion
highly reflective material
laser absorption rate
pure copper/copper alloy
