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Abstract：
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For the automobile door outer panel, the influences of surface curvature on the surface defects of parts were studied, and the corresponding relationship between the surface slope of parts and the surface defect level was proposed by the data comparison and the experience analysis of various parts. When the slope was less than 0.003, the surface defects were not visible, and when the curvature was greater than 0.009, the surface defects were not acceptable. Then, the high-risk area of door outer panel was identified by the surface curvature analysis method, and the slip line and the surface distortion in the stamping process were predicted combined with software Autoform. According to the analysis results, the corresponding compensation measures were conducted. The results show that after the optimized door outer panel is tested by GSQE, the surface defects are effectively suppressed and eliminated to meet the quality requirement of automobile door outer panel.
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Funds：
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广西创新驱动发展专项课题（桂科AA18118040）；柳州市科技计划课题（2018AD50301）
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AuthorIntro：
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李恒佰（1983-），男，学士，工程师，E-mail：hengbai.li@sgmw.com.cn
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Reference：
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