| 薄板拉延过程中变压边力加载曲线的研究 |
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| 引用本文： | 曾金龙,管爱枝,施于庆,俞狄锋.薄板拉延过程中变压边力加载曲线的研究[J].杭州应用工程技术学院学报,2009(3):301-304. |
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| 作者姓名： | 曾金龙 管爱枝 施于庆 俞狄锋 |
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| 作者单位： | [1]皮尔集团公司常山皮尔轴承有限公司,浙江常山324200 [2]浙江科技学院机械与汽车工程学院,杭州310023 |
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| 基金项目： | 浙江省科技计划项目（2006C21052） |
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| 摘 要： | 压边力是薄板拉延成形过程中的重要工艺参数之一,变压边力可避免拉延起皱或破裂等缺陷。通过分析薄板拉延变压边力的力学机理,计算了指定圆筒形件采用多点压边变压边力加载装置时各压边点不起皱和不拉裂的临界压边力Qzi和Qli,分析了各压边点的变压边力加载曲线,证实了多点变压边力控制的可行性,认为变压边力技术在拉延成形中有较佳实践意义。
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| 关 键 词： | 拉延 变压边力 力学机理 加载曲线 |
Study on loading curve of variable blank holding force in sheet metal drawing process |
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| ZENG Jin-long,GUAN Ai-zhi,SHI Yu-qing,YU Di-feng.Study on loading curve of variable blank holding force in sheet metal drawing process[J].Journal of Hangzhou Institute of Applied Engineering,2009(3):301-304. |
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| Authors: | ZENG Jin-long GUAN Ai-zhi SHI Yu-qing YU Di-feng |
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| Affiliation: | 1.Changshan Peer Bearing Co.,Ltd.,Peer Group of Companies,Changshan 324200,China;2.School ofMechanical and Automotive Engineering,Zhejiang University of Science and Technology,Hangzhou 310023,China) |
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| Abstract: | The Blank holding force（BHF） is one of the important parameters in sheet metal drawing process.Application of variable blank holding force（VBHF） can avoid such defects as wrinkling and fracture.After analyzing the theoretical principle of VBHF,we calculated the holding forces Qzi（the critical wrinkling BHF） and Qli（the critical fracture BHF） at three blank holding points for a cylinder drawing workpiece,analyzed the loading curves of the VBHF,and proved the feasibility of VBHF.The VBHF control technology is of good practical significance in the drawing process. |
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| Keywords: | drawing process VBHF mechanical principle loading curve |
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