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摘要：
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介绍了一种尾门内板冲压工艺方案及带有双压料芯结构的拉深成形模具，描述了零件的工艺性分析、冲压方向的选择、各工序的工艺内容及设计要点，重点分析了尾门内板拉深成形工艺、拉深成形模的模具设计及其工作原理。拉深成形模具采用凹向拉深成形，在模具结构中窗洞压料芯上置设计，分阶段控制拉深成形过程中的料流状况来消除开裂起皱等质量缺陷。通过工艺优化及基于Autoform有限元的CAE模拟分析验证，缩短了后期生产调试周期。实际生产证明，该冲压工艺方案较好地解决了尾门内板成形中的开裂起皱质量问题，零件精度及面品质量较好，同时也满足了四序化自动化线冲压生产。
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The tail-gate inner panel stamping process and the structure of drawing die with double pads were introduced, and the technological analysis of the parts, selection of the stamping direction, technological contents and design points of each process were described. Then, the drawing process, structural design of drawing die and its working principle were mainly analyzed, and the mass defects of crack and wrinkle were eliminated by concave drawing, design of window blank holder in the upper die and control of material flow by stages during drawing process. Furthermore, the adjustment period of later production was reduced by process optimization and analysis verification of CAE simulation with Autoform. The actual production shows that the crack and wrinkle in tail-gate inner panel forming can be effectively solved by using the above stamping process meets automatic stamping production with four orders, and the part precision and surface quality are better.
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基金项目：
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国家科技重大专项（2014ZX04002041）
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作者简介：
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王海玲（1989-），女，学士，工程师
E-mail：wanghailing89@163.com
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参考文献：
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［1］朱梅云. 基于eta/Dynaform的尾门内板模面工艺优化设计
［J］.锻压技术,2011，36(5):32-35.
Zhu M Y. Die face optimization process based on eta/Dynaform
［J］. Forging & Stamping Technology,2011，36(5):32-35.
［2］杨谊丽，陈文琳，崔礼春.尾门外板冲压成形数值模拟及伺服拉深实验
［J］.锻压技术,2016,36(5):153-157.
Yang Y L，Chen W L，Cui L C. Numerical simulation of forming process for tail-gate outer panel and its servo drawing experiment
［J］. Forging & Stamping Technology，2016,36(5):153-157.
［3］陈世涛，阮林凡，赵淮北.带气动切换机构的汽车顶盖翻边整形模设计
［J］.锻压技术,2013，38(4):101-105.
Chen S T，Ruan L F，Zhao H B. Design of automotive roof flanging-sizing mold with pneumatic switching mechanism
［J］. Forging & Stamping Technology,2013，38(4):101-105.
［4］郑薇. 某MPV车型尾门内板的工艺设计
［J］.锻造与冲压，2013,319(14):43-45.
Zheng W. The process design of internal panel of tail gate
［J］. Forging ＆ Metalforming，2013,319(14):43-45.
［5］陈世涛,王海玲,何鹏申,等.汽车翼子板四序化冲压工艺方案及翻边整形模设计
［J］.锻压技术,2016,41(5):106-112.
Chen S T，Wang H L，He P S，et al. Four-step stamping process and flanging-sizing die design for car fender
［J］. Forging & Stamping Technology，2016,41(5):106-112.
［6］何鹏申,王肖英,陈世涛,等.带双压料机构的侧围外板侧整形模具设计
［J］.锻压技术,2016,41(4):89-94.
He P S，Wang X Y，Chen S T，et al. Design on side sizing die of side-frame outer panel with double blank holders
［J］. Forging ＆ Stamping Technology,2016,41 （4)： 89-94.
［7］张胜华,李玉强,董剑安,等.尾门内板成形工艺的研究与探讨
［J］.模具技术,2012,(4):38-42.
Zhang S H，Li Y Q，Dong J A，et al. Research of the forming process of lift-gate inner panel
［J］.Die and Mould Technology,2012，(4):38-42.
［8］龚志辉,兰质纯,周顺峰,等.汽车覆盖件模具凸型面拉延方法
［J］.机械工程学报,2014,50(20):129-135.
Gong Z H，Lan Z C，Zhou S F，et al. Method on convex surface drawing for automobile panel
［J］. Journal of Mechanical Engineering，2014,50 （20)： 129-135.
［9］史茂华.冲压模具设计过程中的关键要素
［J］.汽车工艺与材料,2011,(3)：44-58.
Shi M H. Critical factors in the process of stamping tool design
［J］. Automobile Technology ＆ Material，2011，(3)：44-58.
［10］关来德. 后背门内板成形工艺缺陷分析与优化
［J］.锻压技术,2017，42(5):19-24.
Guan L D. Analysis and optimization on defects from forming process of back door inner panel
［J］. Forging ＆ Stamping Technology,2017，42(5):19-24.
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