LI Jing, BAI Pei-kang, WANG Jian-hong, ZHANG Ge
(School of Materials Science and Engineering, North University of China, Taiyuan 030051， China)
Abstract： Taking Ti6Al4V titanium alloy powder as the research object, on the basis of single layer scanning and single channel scanning experiment, this paper studies the influence of selective laser melting (SLM) process parameters on Ti6Al4V alloy material formability, and block forming experiment is carried out. Through the design of orthogonal experiment, morphology observation of sample and density analysis, results show that the best block molding parameters of SLM technology in Ti6Al4V alloy powder are laser power of 400 W, lap rate of 1 and the scanning speed of 750 mm/min, density can up to 96.17%.
Key words： selective laser melting (SLM); Ti6Al4V powder; powder formability; density
CLD number： TG146.2+3 Document code： A
Article ID： 1674-8042（2018）01-0088-04 doi： 10.3969/j.issn.1674-8042.2018.01.013
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选区激光熔化工艺参数对Ti6Al4V粉末成型性的影响
李 婧， 白培康， 王建宏， 张 格
（中北大学 材料科学与工程学院, 山西 太原 030051）
摘 要: 以Ti6Al4V钛合金粉末为研究对象， 在单层扫描和单道扫描实验的基础上， 研究SLM工艺参数对Ti6Al4V合金材料成型性的影响， 并进行了块体成型实验， 通过设计正交试验及观察试样的形貌和致密度分析， 最终得到Ti6Al4V合金粉末SLM块体成型的最佳工艺参数为： 激光功率400 W、 搭接率1、 扫描速度750 mm/min， 其致密度可以达到96.17%。
关键词: 选区激光熔化； Ti6Al4V粉末； 粉末成型性； 致密度
引用格式： LI Jing, BAI Pei-kang, WANG Jian-hong, et al. Effects of selective laser melting process parameters on powder formability of Ti6Al4V. Journal of Measurement Science and Instrumentation, 2018, 9(1)： 88-91. ［doi： 10.3969／j.issn.1674-8042.2018.01.013］
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