1. School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou, People’s Republic of China
2. Faculty of Mechanical & Electrical Engineering, Guilin University of Electronic Technology, Guilin, People’s Republic of China
3. School of Mechanical and Electrical Engineering, Guangdong University of Science and Technology, Dongguan, People’s Republic of China
4. Guangdong Metal Ceramic 3D Technology Co., Ltd, Foshan, People’s Republic of China