Optimization of Parameters in Laser Powder Bed Fusion TA15 Titanium Alloy Using Taguchi Method
Yang Liu,
Zichun Wu,
Qing Wang,
Lizhong Zhao,
Xichen Zhang,
Wei Gao,
Jing Xu,
Yufeng Song,
Xiaolei Song,
Xuefeng Zhang
Affiliations
Yang Liu
Hunan Engineering Research Center of Forming Technology and Damage Resistance Evaluation for High Efficiency Light Alloy Components, School of Mechanical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
Zichun Wu
Hunan Engineering Research Center of Forming Technology and Damage Resistance Evaluation for High Efficiency Light Alloy Components, School of Mechanical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
Qing Wang
Institute of Advanced Magnetic Materials, College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, China
Lizhong Zhao
Institute of Advanced Magnetic Materials, College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, China
Xichen Zhang
Hunan Engineering Research Center of Forming Technology and Damage Resistance Evaluation for High Efficiency Light Alloy Components, School of Mechanical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
Wei Gao
Hunan Engineering Research Center of Forming Technology and Damage Resistance Evaluation for High Efficiency Light Alloy Components, School of Mechanical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
Jing Xu
Hunan Engineering Research Center of Forming Technology and Damage Resistance Evaluation for High Efficiency Light Alloy Components, School of Mechanical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
Yufeng Song
Hunan Engineering Research Center of Forming Technology and Damage Resistance Evaluation for High Efficiency Light Alloy Components, School of Mechanical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
Xiaolei Song
Key Laboratory of Advanced Structural Materials, Ministry of Education, College of Materials Science and Engineering, Changchun University of Technology, Changchun 130012, China
Xuefeng Zhang
Institute of Advanced Magnetic Materials, College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, China
In this work, laser powder bed fusion (LPBF) was explored to fabricate TA15 (Ti-6Al-2Zr-1Mo-1V) titanium alloy based on the experimental design obtained by using the Taguchi method. The impact of processing parameters (including laser power, scanning speed, and scanning interval) on the density and microhardness of the as-LPBFed TA15 titanium alloy was analyzed using the Taguchi method and analysis of variance (ANOVA). The interaction among parameters on the density of the as-LPBFed TA15 titanium alloy was indicated by a response surface graph (RSR). When the laser energy density was adjusted to 100 J/mm3, the highest relative density could reach 99.7%. The further increase in the energy input led to the reduction in relative density, due to the formation of tiny holes caused by the vaporization of material at a high absorption of heat. Furthermore, in order to better reveal the correlation between relative density and processing parameters, the regression analysis was carried out for relative density. The results showed that the experimental and predicted values obtained by the regression equation were nearly the same.
