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Abstract：
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The study on the testing method of the autosheet's dent resistance shows that such dent resistance indexes as denting resistance, sinking stiffness and oil canning load indicate the prestrained parts' capability to resist the dent and maintain the shape. These indexes are derived from the prestrained parts' load displacement curve. Meanwhile the testing result of the autosheet's dent resistance of various strength provides the basis for the substitution of the steel of automobile outer panel
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AuthorIntro：
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Reference：
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1 李东升,周贤宾双曲扁壳覆盖件抗凹性的定量评估机械工程学报,34(1):69～74
2 姚贵生采用烘烤硬化钢板改善汽车车身外表零件的抗凹陷性能.宝钢技术,2000,(4):1～7
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