Modeling and Ezperimental Measurement of Surface Distortion in Sheet Metal Stamping
Surface distortion is a subtle waviness in the sheet deformation which is not desired by design. It is deemed as surface defect and not acceptable for the show surfaces of sheets. The distortion often occurs next to a depression feature such as ones in sun roof,body side outer and deck lid outer. In this study,a circular panel with squareshape depression in the center was investigated experimentally and numerically. The distortion amount in the panels was measured using coordinate measurement machine and the surface profile was obtained using a white-light scanner. Meanwhile,the drawing of the circular panel was modeled using LSDYNA solver. The sheet deformation from the numerical simulation was compared to the scanned data. Conclusions were made on the sensitivity of the distortion magnitude to the variation of geometric variables used in representing the square-shape depression feature.
the circular panel
Wang Huiping Zhao Kunmin Fu Zhengchun Hu Ping
GM R & D Center Warren,MI,USA GM Global Manufacturing Engineering Pontiac,Ml,USA Mechanical Engineering Department Jilin University,Jilin,China College of Automotive Engineering Dalian University of Technology,Dalian,China
国际会议
2009 International Symposium on Automobile Steel(2009年汽车用钢生产及应用技术国际研讨会)
大连
英文
337-341
2009-09-06（万方平台首次上网日期，不代表论文的发表时间）