Numerical simulation of multi-point stretch forming for hyperbolicity workpiece and it’s process analysis

DOI

10.2991/icmse-15.2015.199How to use a DOI?

Keywords

multi-point stretch forming, numerical simulation, hyperbolicity, amendment.

Abstract

A finite element model was built for the sheet metal multi-point stretch forming (MPSF), and the numerical simulation of the MPSF for the saddle and spherical surface workpiece were performed. The simulation results show that to hyperbolicity workpiece, the influence on precision is different in dissimilar direction, and the reason was analysed. Besides In MPSF, the contact between sheet and punches group is discontinuous, so it is very important to structure the enveloping surface of punch group. In this paper, four boundary line method was used to describe it to obtain smooth curved face, and B-spline curve was adopted to approach curves in four boundary line method. Finally, the experiment was done to approve the validity of method.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Chuan Min Zhang
AU  - Wei Liu
AU  - Wen Zhi Fu
PY  - 2015/12
DA  - 2015/12
TI  - Numerical simulation of multi-point stretch forming for hyperbolicity workpiece and it’s process analysis
BT  - Proceedings of the 2015 6th International Conference on Manufacturing Science and Engineering
PB  - Atlantis Press
SP  - 1096
EP  - 1104
SN  - 2352-5401
UR  - https://doi.org/10.2991/icmse-15.2015.199
DO  - 10.2991/icmse-15.2015.199
ID  - Zhang2015/12
ER  -