Journal
CHINESE JOURNAL OF MECHANICAL ENGINEERING
Volume 30, Issue 3, Pages 515-527Publisher
SPRINGEROPEN
DOI: 10.1007/s10033-017-0121-5
Keywords
Selective laser melting; Process parameters; Defect; Mechanical properties
Categories
Funding
- National Natural Science Foundation of China [51605077]
- Science Challenge Project [CKY2016212A506-0101]
- Science Fund for Creative Research Groups of NSFC [51621064]
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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.
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