| 不等高盒形件曲面重构及变压边力成形过程模拟 |
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| 引用本文： | 刘琼,俞芙芳,刘全坤,胡龙飞.不等高盒形件曲面重构及变压边力成形过程模拟[J].锻压装备与制造技术,2005,40(5):50-53. |
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| 作者姓名： | 刘琼 俞芙芳 刘全坤 胡龙飞 |
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| 作者单位： | [1]合肥工业大学材料科学与工程学院,安徽合肥230009 [2]福建工程学院,福建福州350014 |
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| 摘 要： | 冲压生产中形状较复杂的不等深盒形件的拉深工艺和模具设计,一般比较复杂.本文以汽车装饰托盘为例,阐述该类型盒形件反求中的曲面重构技术.应用塑性成形有限元技术对其拉深过程进行数值模拟;模拟中采用按一定规律变化的压边力作为成形条件之一.模拟结果表明,不等高盒形件采用锯齿形变压边力可以有效地防止起皱和拉裂等拉深缺陷.
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| 关 键 词： | 机械制造 拉深 不等高盒形件 数值模拟 变压边力 |
| 文章编号： | 1672-0121(2005)05-0050-04 |
| 修稿时间： | 2005年6月26日 |
Surface Reconstruction of Different Depth Box and its Variable Blank-Holder Forces Formability Process Numerical Simulation |
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| LIU Qiong,YU Fufang,LIU Quankun,HU Longfei.Surface Reconstruction of Different Depth Box and its Variable Blank-Holder Forces Formability Process Numerical Simulation[J].China Metalforming Equipment & Manufacturing Technology,2005,40(5):50-53. |
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| Authors: | LIU Qiong YU Fufang LIU Quankun HU Longfei |
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| Affiliation: | LIU Qiong1,YU Fufang2,LIU Quankun1,HU Longfei1, |
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| Abstract: | With an example of automobile stock,the surface construction in reverse engineering has been introduced.By the Finite-Element Method, the formability of the different depth deep drawing process has been investigated based on the numerical simulation;Aiming at one of the formability conditions,the saw tooth variable blank-holding force has been researched.The numerical simulation result indicated that the saw tooth variable blank-holder force can improve the formability of different depth box deep drawing and efficiently avoid the failure of wrinkling and fracture in drawing process. |
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| Keywords: | Machinery manufacture Different depth box Numerical simulation Variable blank-holder force |
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