Paper Title:

Design of Flexible Multi-Gripper Stretch Forming Machine by FEM

Periodical Advanced Materials Research (Volumes 328 - 330)
Main Theme Mechatronics and Materials Processing I
Edited by Liangchi Zhang, Chunliang Zhang and Zichen Chen
Pages 13-17
DOI 10.4028/www.scientific.net/AMR.328-330.13
Citation He Li Peng et al., 2011, Advanced Materials Research, 328-330, 13
Online since September, 2011
Authors He Li Peng, Mine Zhe Li, Qi Gang Han, Peng Xiao Feng, Hao Han Zhang
Keywords Finite Element Method (FEM), Flexible Stretch Forming Machine, Optimized Design, Sheet Forming
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Abstract

In order to improve the performance of back drawing type of flexible multi-gripper stretch forming machine used for double-curvature metal sheet forming, back and down drawing type of flexible multi-gripper stretch forming machine was designed by finite element method (FEM), which has simple structure and cheap cost. The FE model of flexible multi-gripper stretch forming was established, and extensive numerical simulations of spherical parts for two kinds of flexible stretch forming machines were carried out. The variations of stress, strain, thickness and springback value of spherical parts for two kinds of drawing modes were analyzed. The numerical results show that the quality of spherical parts formed by the back and down drawing type of stretch forming machine is better than that by the back drawing type of stretch forming machine. This work provides a machine for developing the technology of stretch forming.