Effects of manipulator compliant movements on the quality of free forgings based on FEM simulation
Author: He, Xiaoming
Source: The International Journal of Advanced Manufacturing Technology, Volume 56, Numbers 9-12, October 2011 , pp. 905-913(9)
Abstract:In heavy forging, a manipulator is indispensable to help the precision of the forging process. The manipulator holds forging workpiece during the forming process, but whether manipulator compliant movements have effects on forging quality of workpiece is still unknown. A method to evaluate the effects of manipulator compliant movements on the forging quality qualitatively is presented in this paper. Forging deformation FEM simulation and manipulator dynamics analysis are coupled. A forging quality evaluation function considering strain distribution uniformity is established. The case study of an eight-square elongation process indicates that manipulator active vertical compliant movement and positive horizontal compliant movement can improve forging quality to some extent in certain conditions. The results show that manipulator compliant movements do have effects on forging quality and can be utilized potentially in designing a forging process.
Document Type: Research Article
Affiliations: Shanghai Nuclear Engineering Research and Design Institute, #29 Hongcao Road, Shanghai, 200233, People’s Republic of China, Email: firstname.lastname@example.org
Publication date: October 1, 2011