Numerical Simulation on Multi-gripper Stretch Forming Process for Sheet Metal
Multi-gripper stretch forming (MGSF) is a new flexible forming process compared to traditional stretching forming process.Two kinds of MGSF process,back-vertical drawing (BVD) and front-vertical drawing (FVD) are compared in this study.Spherical-curved part is selected as the research object,and the finite numerical modes for BVD and FVD have been established,and the simulation results are carried out by dynamic explicit finite element analysis.The numerical results indicated that the sheet metal can get the shape of the die at a lower strain ratio and the stretch strain distribution was more uniform by the FVD,which can improve the forming quality of the formed parts.In addition,the sheet metal can be formed by FVD under smaller hydraulic cylinder strokes.The results may provide useful guidance on optimizing the MGSF equipment structure.
Sheet Metal Multi-gripper Stretch Forming Numerical Simulation
Y.Wang M.Z.Li H.L.Peng S.H.Gu
Dieless Forming Technology Center Jilin University(Nanling Campus)Changchun 130025,PR China
国际会议
沈阳
英文
863-869
2013-07-06（万方平台首次上网日期，不代表论文的发表时间）