| 变薄拉深工艺极限变形率的研究 |
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| 引用本文： | 刘岩,王连生,刘新喜.变薄拉深工艺极限变形率的研究[J].太原科技大学学报,1995(2). |
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| 作者姓名： | 刘岩 王连生 刘新喜 |
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| 作者单位： | 太原重型机械学院压力加工系，太原铜业公司 |
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| 摘 要： | 本文分析了变薄拉深中材料的应力状态，并采用上限法导出了筒壁拉应力解析式，提出了一种新的极限变形率。该极限变形率除考虑传统的拉应力极限之外，还应使凹模出口段处于压应力状态，以保证工件的几何尺寸精度。
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| 关 键 词： | 变薄拉深 极限变形率 应力状态 |
Ultimate Deformation of Cylindrical Workpiece Ironing |
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| Liu Yan, Wang Liansheng.Ultimate Deformation of Cylindrical Workpiece Ironing[J].Journal of Taiyuan University of Science and Technology,1995(2). |
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| Authors: | Liu Yan Wang Liansheng |
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| Abstract: | In this paper,the stress states in ironing are described; the tensile stress formulaeof the cylinder wall are obtained by using upperbound method;and a new ultimate deforma-tion is presented.In dealing with the ultimate deformation,the author not only takes thetraditional wltimate tensile stress into account,but takes it into consideration that the cylin-der wall in the outlet section of the die should be kept in compressive stress state in order toguarantee the precision of the cylindrical workpiece. |
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| Keywords: | ironing ultimate deformation stress state |
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