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125摩托车油底壳拉深起皱现象分析与解决
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英文标题：Drawing wrinkling analysis and solution of 125 motorcycle tank bottom shell |
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作者：王玥 傅建 朱梅云 彭必友 李善强 |
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单位：西华大学材料科学与工程学院 |
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关键词：摩托车 油底壳 拉深 起皱 数值模拟 |
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分类号：TG386;U483 |
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出版年,卷(期):页码：2010,35(2):127-131 |
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摘要：
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拉深起皱是125摩托车油箱底壳在试模期间经常遇到的问题。以ETA/DynaForm软件为平台,模拟125摩托车油箱底壳拉深起皱现象,并从应力、应变状态着手,分析起皱原因,提出解决方案。经分析结果得到起皱的主要原因为板料在成形过程中应力分量不均衡,采用一模两件的方案有效平衡了制件开口处的应力分布,同时通过加大压边力、改变摩擦系数、增设拉深筋和改变坯料尺寸,基本上消除了制件拉深试模过程中的起皱等缺陷。
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The drawing wrinkling of 125 motorcycle tank bottom shell is often met in stamping test.The drawing wrinkling of 125 motorcycle tank bottom shell was simulated by the eta/Dynaform software.Based on the stress and strain analysis on simulation results,the wrinkling reasons were studied and the wrinkling solution was brought up.From the simulation results,the main reason of wrinkling is that the stress component is not balancing in the process of blank forming.By using the scheme of two pieces in one die,stress distribution on the part opening was balanced effectively.At the same time,by increasing blank holder force,changing friction coefficient,setting draw-bead and changing blank size,the drawing wrinkling in stamping test was basically eliminated.
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基金项目：
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作者简介：
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参考文献：
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[1]Samuel M.Numerical and experimental investigations offorming limit diagrams in metal sheets[J].Journal of Mate-rials Processing Technology,2004,153-154:155-156,1489.
[2]Ludovic Courvoisier,Marion Martiny,Gerard Ferron.Ana-lytical modelling of drawbeads in sheet metal forming[J].Journal of Materials Processing Technology 2004,133:359-370.
[3]崔令江.汽车覆盖件冲压成形技术[M].北京:机械工业出版社,2003.
[4]雷正保.汽车覆盖件冲压成形CAE技术及其工业应用研究[R].长沙:中南大学,2003.
[5]丁松聚.冷冲模设计[M].北京:机械工业出版社,2006.
[6]彭必友,殷国富,赵侠,等.板料形状、压料筋的设置对汽车覆盖件成形中起皱和未充分拉深的影响[J].塑性工程学报,2006,13(6):39-42.
[7]李金燕,傅捷,彭必友,等.基于数值模拟的等效拉延筋设计与优化[J].塑性工程学报,2007,14(5):14-17.
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