Circle grid analysis applied to the production problems of the car body panel

被引：9

作者：

Buchar, Z

机构：

[1] Dept. of Metal Forming and Plastics, Technical University of Liberec, CZ-461 17 Liberec 1

来源：

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY | 1996年 / 60卷 / 1-4期

关键词：

sheet metal pressing; car body panels; forming limit diagrams; sheet metal formability;

D O I：

10.1016/0924-0136(96)02330-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Production problems of the autobody door inner panel in the press shop is investigated with aid of the circle grid analysis. The aim is to reduce the scrap rate. The strain distribution and the strain history in the severe deformed area is determined. Strains are compared with the limit strains in the form of the forming limit diagrams. Two forming limit diagrams (FLDs) are determined for two sheet metal blank orientations to the rolling direction alpha=90 degrees and alpha=0 degrees, respectively. Mathematical statistics is used for evaluating of experimental data Statistically significant difference between forming limit curves is appreciated and the formability stock in the range of various strain states through FLD is determined. Also strain history in the investigated area of the stamped part is determined.

引用

页码：205 / 208

页数：4