Numerical analysis of the multi-point stretch forming process of aircraft outer skin part

被引：5

作者：

Wang, S. H. ^{[1
]}

Cai, Z. Y. ^{[1
]}

Li, M. Z. ^{[1
]}

Lan, Y. W. ^{[1
]}

机构：

[1] Jilin Univ, Roll Forging Res Inst, Changchun 130025, Peoples R China

来源：

MATERIALS PROCESSING TECHNOLOGIES, PTS 1 AND 2 | 2011年 / 154-155卷

关键词：

multi-point stretch-forming; dimples; free length; wrinkling;

D O I：

10.4028/www.scientific.net/AMR.154-155.1068

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

As a flexible manufacturing technique, Multi-point stretch forming (MPSF) is a suitable method for forming aircraft outer skin part. The traditional solid stretching die is replaced by the discrete multi-point die (MPSD), and the sheet metal is stretch-formed over the MPSD generated by serial adjusting mode or parallel adjusting mode. The MPSF can be used to form the parts of different shape and reduce the cost and leading time of stretching die fabrication for aircraft outer skin part. A series of numerical simulations on typical MPSF processes of aircraft outer skin part were carried out. The thickness of elastic cushion and free length are important factors to influence on the stretch forming results of stretch-formed parts. The numerical simulation results show that the thicker the elastic cushion is, the more valid the dimple will be suppressed. The longer the free length is, the easier the wrinkle will be brought.

引用

页码：1068 / 1072

页数：5