袁玉红,滕生磊.筒形件深拉伸褶皱预防方法的研究[J].精密成形工程,2010,2(1):29-32.
YUAN Yu-hong,TENG Sheng-lei.Research on the Precaution Method of Wrinkle of the Deep Drawing Cylindrical Workpieces[J].Journal of Netshape Forming Engineering,2010,2(1):29-32. |
| 筒形件深拉伸褶皱预防方法的研究 |
| Research on the Precaution Method of Wrinkle of the Deep Drawing Cylindrical Workpieces |
| 投稿时间：2009-12-25 修订日期：2010-01-10 |
| DOI： |
| 中文关键词: 筒形件 深拉伸 褶皱 临界相对厚度 临界压边力 |
| 英文关键词: cylindrical workpieces deep drawing wrinkle critical relative thickness critical blankholding force |
| 基金项目: |
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| 摘要点击次数: 3618 |
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| 中文摘要: |
| 分析轴向弯矩致使筒形件深拉伸褶皱产生的机理,得到材料褶皱发生的临界状态的平衡式。根据板料产生皱褶的临界相对厚度，讨论在不压料条件下板料的屈服强度σ-s、弹性模量E、泊松比μ、硬化指数n和拉深系数m等因素对筒形件法兰褶皱产生的影响。讨论在压料条件下，模具参数、拉深工况、板料初始几何参数、材料性能参数等因素对抑制法兰褶皱的临界压边力的影响，制定出防止法兰褶皱产生的工艺措施。 |
| 英文摘要: |
| By analyzing the mechanism of cylindrical part's deep-drawing wrinkle which is caused by moment of flexure, the equation of critical state of material's wrinkle is obtained. Based on the critical relative thickness of the sheet's wrinkle the impacts, which are contributed by the non-pressure sheet's factors including yield strength σ, modulus of elasticity E, Poisson ratio μ, hardening exponent n and drawing coefficient m, on cylindrical flange's fold are discussed. The impacts caused by the factors, including the under-pressure mold coefficient, drawing situation, sheet's initial geometrical factor, material's performance parameters, on restraining critical blankholding force of the flange wrinkle are discussed. The processes to prevent flange wrinkle are formulated. |
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