1. Rapid Manufacturing Engineering CenterShanghai University Shanghai 200444 China
2. Shanghai Key Laboratory of Intelligent Manufacturing and RoboticsShanghai University Shanghai 200072 China
3. National Demonstration Center for Experimental Engineering Training EducationShanghai University Shanghai 200444 China
4. Georgia Tech Manufacturing InstituteGeorgia Institute of Technology Atlanta GA 30332 USA
5. School of Industrial and Systems EngineeringGeorgia Institute of Technology Atlanta GA 30332 USA
6. School of Materials Science and EngineeringGeorgia Institute of Technology Atlanta GA 30332 USA