Selective laser melting(SLM) is an attractive rapid prototyping technology for the fabrication of metallic components with complex structure and high performance. Aluminum alloy, one of the most pervasive structural materials, is well known for high specific strength and good corrosion resistance. But the poor laser formability of aluminum alloy restricts its application. There are problems such as limited processable materials, immature process conditions and metallurgical defects on SLM processing aluminum alloys. Some efforts have been made to solve the above problems. This paper discusses the current research status both related to the scientific understanding and technology applications. The paper begins with a brief introduction of basic concepts of aluminum alloys and technology characterization of laser selective melting. In addition, solidification theory of SLM process and formation mechanism of metallurgical defects are discussed. Then, the current research status of microstructure, properties and heat treatment of SLM processing aluminum alloys is systematically reviewed respectively. Lastly, a future outlook is given at the end of this review paper.
类型: 期刊论文
作者: Jinliang Zhang,Bo Song,Qingsong Wei,Dave Bourell,Yusheng Shi
来源: Journal of Materials Science & Technology 2019年02期
年度: 2019
分类: 工程科技Ⅰ辑
专业: 金属学及金属工艺
单位: State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology,Dave Bourell Laboratory for Freeform Fabrication, Mechanical Engineering Department, The University of Texas at Austin
基金: sponsored by National Key Research and Development Program “Additive Manufacturing and Laser Manufacturing” (No. 2016YFB1100101),Natural and Science Foundation of China (Grant Nos. 51775208,51505166),Hubei Science Fund for Distinguished Young Scholars (No. 0216110085),Wuhan Morning Light Plan of Youth Science and Technology (No. 0216110066),Graduates’ Innovation Fund,Huazhong University of Science and Technology (No. 5003110027),Fundamental Research Funds for the Central University (No. 2017JYCXJJ004),the Academic frontier youth team at Huazhong University of Science and Technology (HUST)
分类号: TG665;TG146.21
页码: 270-284
总页数: 15
文件大小: 1580K
下载量: 139
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