Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1640655 | Transactions of Nonferrous Metals Society of China | 2009 | 5 Pages |
Abstract
During deep drawing process, the material parameters of blank have a significant effect on the quality of the drawn part and the determination of process parameters. Here, a 3D finite element model is developed for the deep drawing process of a thin-walled hemispheric surface part. Then the influences of material parameters including hardening exponent n, yield stress Ïs and elastic modulus E on the process are investigated by simulation. The results show that the effects of n and Ïs on punch force, thickness variation and equivalent strain are more notable. The maximum equivalent plastic strain occurs outside the die corner. However, when the value of n is 0.03 or Ïs is smaller than 120 MPa, higher equivalent plastic strain occurs at ball top.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
En-zhi GAO, Hong-wei LI, Hong-chao KOU, Hui CHANG, Jin-shan LI, Lian ZHOU,