| 曲面零件冲压成形内皱发生时刻的分析 |
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| 引用本文： | 李燕姝,王志恒.曲面零件冲压成形内皱发生时刻的分析[J].内蒙古工业大学学报,2002,21(4):251-254. |
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| 作者姓名： | 李燕姝 王志恒 |
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| 作者单位： | 内蒙古工业大学材料科学与工程学院 内蒙古呼和浩特010062
(李燕姝)，内蒙古工业大学材料科学与工程学院 内蒙古呼和浩特010062(王志恒) |
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| 基金项目： | 内蒙古自然科学基金资助项目 |
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| 摘 要： | 本文利用内皱模型，结合曲面零件在成形过程中的几何条件及应力分析分别推导了圆锥形零件和球形零件不发生内皱的临界条件；通过对临界条件的数学分析进而得到了曲面零件在成形过程中内皱发生的具体时刻。综合上述结果得到了曲面零件成形过程中不用压边也不发生内皱的判 据。
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| 关 键 词： | 圆锥形零件 球形零件 内皱发生时刻 |
| 文章编号： | 1001-5167(2002)04-0250-05 |
ANALYSIS OF INNER-WRINKLING FORMATION MOMENT DURING CURVED SURFACE PART DRAWING |
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| L I Yan- shu,WANG Zhi- heng.ANALYSIS OF INNER-WRINKLING FORMATION MOMENT DURING CURVED SURFACE PART DRAWING[J].Journal of Inner Mongolia Polytechnic University(Social Sciences Edition),2002,21(4):251-254. |
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| Authors: | L I Yan- shu WANG Zhi- heng |
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| Abstract: | By means of an innerwrinkling model and stress analysis,with geometric conditions dur- ing the formation process taken into consideration,critical conditions for nonoccurrence of innerwrin- kling are deduced respectively for the drawing of tapered shell and spherical shell.The accurate mo- ment when innerwrinkling is formed is determined via mathematic analysis of critical conditions.Crite- rion is concluded for the nonoccurrence of innerwrinkling during the drawing of curved surface parts even without the use of blankholder. |
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| Keywords: | tapered shell spherical shell innerwrinkling formation moment |
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