In Situ 3D Monitoring of Geometric Signatures in the Powder-Bed-Fusion Additive Manufacturing Process via Vision Sensing Methods

Zhongwei Li; Xingjian Liu; Shifeng Wen; Piyao He; Kai Zhong; Qingsong Wei; Yusheng Shi; Sheng Liu

doi:10.3390/s18041180

In Situ 3D Monitoring of Geometric Signatures in the Powder-Bed-Fusion Additive Manufacturing Process via Vision Sensing Methods

Sensors (Basel). 2018 Apr 12;18(4):1180. doi: 10.3390/s18041180.

Authors

Zhongwei Li¹, Xingjian Liu², Shifeng Wen³, Piyao He⁴, Kai Zhong⁵, Qingsong Wei⁶, Yusheng Shi⁷, Sheng Liu^{8

9}

Affiliations

¹ State Key Laboratory of Material Processing and Die & Mould Technology, Huazhong University of Science and Technology, Wuhan 430074, China. zwli@hust.edu.cn.
² State Key Laboratory of Material Processing and Die & Mould Technology, Huazhong University of Science and Technology, Wuhan 430074, China. xingjianliu@hust.edu.cn.
³ State Key Laboratory of Material Processing and Die & Mould Technology, Huazhong University of Science and Technology, Wuhan 430074, China. roya_wen@hust.edu.cn.
⁴ State Key Laboratory of Material Processing and Die & Mould Technology, Huazhong University of Science and Technology, Wuhan 430074, China. piyaohe@hust.edu.cn.
⁵ State Key Laboratory of Material Processing and Die & Mould Technology, Huazhong University of Science and Technology, Wuhan 430074, China. kaizhong@hust.edu.cn.
⁶ State Key Laboratory of Material Processing and Die & Mould Technology, Huazhong University of Science and Technology, Wuhan 430074, China. wqs_xn@163.com.
⁷ State Key Laboratory of Material Processing and Die & Mould Technology, Huazhong University of Science and Technology, Wuhan 430074, China. shiyusheng@hust.edu.cn.
⁸ The Institute of Technological Sciences, Wuhan University, Wuhan 430072, China. victor_liu63@vip.126.com.
⁹ School of Power and Mechanical Engineering, Wuhan University, Wuhan 430072, China. victor_liu63@vip.126.com.

Abstract

Lack of monitoring of the in situ process signatures is one of the challenges that has been restricting the improvement of Powder-Bed-Fusion Additive Manufacturing (PBF AM). Among various process signatures.

Keywords: additive manufacturing; contour detection; in situ monitoring; quality inspection; surface topography.