Analysis of draw bead geometry on wall thinning and concave/convex feature in rectangular deep drawn parts
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Publication Details
Author list: Phanitwong W., Thipprakmas S.
Publisher: Trans Tech Publications
Publication year: 2011
Volume number: 189-193
Start page: 2704
End page: 2707
Number of pages: 4
ISBN: 9783037850312
ISSN: 1022-6680
eISSN: 1662-8985
Languages: English-Great Britain (EN-GB)
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Abstract
The application of the draw bead could reduce the concave/convex wall features. However, it also affected the wall thinning. Therefore, it is difficult to determine the suitable draw bead geometry to obtain a straight wall without the wall thinning. In this study, the effects of draw bead geometry of height and width on concave/convex wall feature and wall thinning were investigated by using the finite element method (FEM) and experiments. Based on the stress distribution analysis, the increasing in draw bead width and the decreasing in draw bead height lead to the concave wall feature increased; however, the application of the too small draw bead width and the too large draw bead height generated the convex wall feature. The wall thinning also decreased as the draw bead width increased as well as the draw bead height decreased. Therefore, the application of suitable draw bead height and width significantly suppressed the concave/convex wall feature and wall thinning, which resulted in the straight wall with the smallest wall thinning could be achieved. ฉ (2011) Trans Tech Publications.
Keywords
Draw bead, Wall thinning
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