Abstract:
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This paper deduce the critical condition of non\|innerwrinkling in process of drawing tapered part by innerwrinkling model,geometry conditions and stress analysis;By programming, the drawing time\|ralative thickness curves are drawn under different parameters;The embodying time of innerwrinkling formation is gained via these curses and the effects on time are analyzed. The criterion of non\|innerwrinkling without blankholder are acquired in process of drawing tapered part .Moreover,these curves are being generality,they can be reference on production or theory.
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Funds:
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内蒙古自然科学基金赞助项目 (2 0 0 0 1 30 2 )
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AuthorIntro:
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Reference:
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1 刘建华等.内皱发生的计算及校核.锻压技术,2000,25(2).
2 雷君相.圆锥形零件冲压成形皱曲和破裂三极限的预报与控制.钢铁研究学报,1999(3).
3 李硕本等.不用压边球面零件和锥面零件的成形极限.哈尔滨工业大学冲压基本理论研究论文集,1981.
4 李春峰.球、锥面零件起皱极限解析.材料科学与工艺.1994(4)
5 李硕本等.曲面零件成形的分析与工艺参数的确定.锻压技术,1981,6(3).
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