Transactions of Materials and Heat Treatment

Title：Analysis of surface defect in automobile outer panel based on finite element

Authors： CHEN Yong-zhi GUO Jin-song LOU Mao-kun

Unit： Guangzhou Automobile Group Motor Co. Ltd.

KeyWords： finite element curvature analysis surface defect springback auto outer door panel

ClassificationCode：TB391.9

year,vol(issue):pagenumber：2013,38(4):32-35

Abstract：

The finite element and curvature analysis technology was used to study the surface defect in auto outer door panel caused by springback. First, the commercial software pamstamp was employed for the forming simulation and the springback calculation. Second, the crosssections of the model were extracted, and the curvature of each point was calculated. According to the analysis of curvature, the surface defect was located in the place where curvature dramatically changed. Compared with the actual panel shape, the simulated result has predicted the areas of defects. Finally, the influence of process parameters on the surface defect was discussed.

Funds：

谌勇志(1986-)，男，硕士，工程师

Reference：

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