Analysis of defect generation in Ti–6Al–4V parts made using powder bed fusion additive manufacturing processes
Analysis of defect generation in Ti–6Al–4V parts made using powder bed fusion additive manufacturing processes
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DOI：
10.1016/j.addma.2014.08.002
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发表时间：
2014-10
影响因子：
11
通讯作者：
Hai-jun Gong;K. Rafi;H. Gu;T. Starr;B. Stucker
中科院分区：
文献类型：
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作者：
Hai-jun Gong;K. Rafi;H. Gu;T. Starr;B. Stucker
使用增材制造工艺（如选择性激光熔化（SLM）和电子束熔化（EBM））制造的Ti-6Al-4V部件易出现缺陷。本研究通过改变SLM和EBM系统中出厂默认设置的工艺参数，有目的地制造了具有缺陷的Ti-6Al-4V样品。工艺参数根据其产生某些类型孔隙的倾向进行分类。最后，缺陷的特点进行了讨论，相对于缺陷的产生机制，和SLM和EBM系统的有效工艺窗口进行了讨论。
Ti–6Al–4V parts made using additive manufacturing processes such as selective laser melting (SLM) and electron beam melting (EBM) are subject to the inclusion of defects. This study purposely fabricated Ti–6Al–4V samples with defects by varying process parameters from the factory default settings in both SLM and EBM systems. Process parameters are classified according to their tendency to create certain types of porosity. Finally, defect characteristics are discussed with respect to defect generation mechanisms; and effective process windows for SLM and EBM system are discussed.