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论文类型：期刊论文

发表时间：2017-05-01

发表刊物：CHINESE JOURNAL OF MECHANICAL ENGINEERING

收录刊物：SCIE、EI、CSCD

卷号：30

期号：3

页面范围：515-527

ISSN号：1000-9345

关键字：Selective laser melting; Process parameters; Defect; Mechanical properties

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.