吉林大学学报(工学版) ›› 2003, Vol. ›› Issue (1): 22-27.

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Numerical Simulation on Defects during Multi-point Forming Process of Square Cup

PEI Yong-sheng, YAN Xue-ping, LI Ming-zhe   

  1. Roll Forging Institute, Jilin University, Changchun 130025, China
  • Received:2002-07-20

Abstract: Based on the Updated Lagrange scheme multi point forming(MPF) process of square cup is simulated using Hill′s elastic plastic anisotropy materials model.Dimpling and wrinkling defects during the MPF process of square cups of different materials,with different shapes,different thickness,and under different deformations and different blank holder forces are discussed.The experiment on the MPF of square cup is carried out to verify the validity of numerical simulation.Moreover,the experiment also indicates that dimpling and wrinkling can be suppressed effectively by so called elastic cushion technique.

Key words: multi-point forming, dimple, wrinkle, numerical simulation, square cup

CLC Number: 

  • TG306
[1] 李明哲,中村敬一.基本的な成形原理の检讨(板材多点成形法の研究第1报)[A].日本平成4年度塑性加工春季讲演会论文集[C].横滨:1992,5:519.
[2] 李明哲,李广权,苏世忠,等.板材多点成形时非连续性边界条件的处理[J].农业机械学报,1997,28(增刊):140~144.
[3] 裴永生,阎雪萍,李明哲,等.用于多点成形数值模拟的LS-DYNA二次开发软件[J].吉林大学学报(工学版),2002,32(3):26~29.
[4] 李明哲,中村敬一.多点成形における不良现象の发生及ぴその抑制(板材多点成形法の研究第3报)[A].第43回塑性加工联合讲演会论文集[C],1992,425~428.
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