Defect Formation Mechanisms in Selective Laser Melting:A Review

查看全文 作　　者：Bi [1,2]Zhang;Yongtao [1]Li;Qian [1]Bai

机构地区：[1]Key Laboratory for Precision and Non-traditional Machining Technology of Ministry of Education, Dalian University of Technology;[2]Department of Mechanical Engineering, University of Connecticut

出　　处：《Chinese Journal of Mechanical Engineering》索引2017年第30卷第3期,共13页

基　　金：Supported by National Natural Science Foundation of China(Grant No.51605077);Science Challenge Project(Grant No.CKY2016212A506-0101);Science Fund for Creative Research Groups of NSFC(Grant No.51621064) 摘　　要：Defect formation is a common problem in selective laser melting(SLM). This paper provides a review of defect formation mechanisms in SLM. It summarizes the recent research outcomes on defect findings and classification, analyzes formation mechanisms of the common defects, such as porosities, incomplete fusion holes, and cracks. The paper discusses the effect of the process parameters on defect formation and the impact of defect formation on the mechanical properties of a fabricated part. Based on the discussion, the paper proposes strategies for defect suppression and control in SLM. 关键词：缺陷形成激光熔化机制 SLM 研究成果常见缺陷性能缺陷工艺参数

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Defect Formation Mechanisms in Selective Laser Melting:A Review

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