1. Shandong Engineering Research Center for Additive Manufacturing Qingdao University of Technology Qingdao 266520 China
2. Key Laboratory of Additive Manufacturing and Applications in Universities of Shandong Qingdao University of Technology Qingdao 266520 China
3. School of Science Qingdao University of Technology Qingdao 266520 China
4. State Key Laboratory of Robotics and System Harbin Institute of Technology Harbin 150080 China
5. State Key Laboratory for Manufacturing Systems Engineering Xi'an Jiaotong University Xi'an 710049 China