锻压技术

某侧围外板冲击线的优化方案

英文标题：Optimization scheme of impact line for a lateral outer panel

作者：张海洲崔礼春余冰定

关键词：侧围外板冲压工艺冲击线镶块 CAE

分类号：TG386

出版年,卷(期):页码：2019,44(1):43-47

摘要：

基于有限元分析软件Autoform，对某侧围外板的冲压成形过程进行了模拟分析及评价，并对是否会产生冲击线进行预判，阐述了冲击线的产生机理。针对该侧围外板B柱后侧壁产生的冲击线，通过将后侧法兰面根部圆角半径由R5 mm增大至R8 mm、将侧壁拔模角由6°增大至11.3°的措施，使冲击线高度由74.38 mm降低至70.9 mm；另外，对产生冲击线缺陷区域的拉延凹模采用镶块结构，并且镶块采用高温回火且配合间隙要求＜0.03 mm。通过现场模具调试，生产出合格的冲压件，B柱后侧壁无明显冲击线痕迹、手摸无阻滞感，涂装后整车光感效果良好。

Based on the finite element analysis software Autoform, the stamping process of a lateral outer panel was analyzed and evaluated. Then, whether it would produce an impact line was predicted, and the mechanism of impact line was explained. For the impact line generated on the Bpillar rear wall of the lateral outer panel, the impact line height was reduced from 74.38 mm to 70.9 mm by increasing the corner radius of back flange face root from R5 mm to R8 mm and increasing the draft angle of side wall from 6° to 11.3°. In addition, the drawing die for the region producing impact line defect adopted insert structure，and the insert was tempered at high temperature with matching clearance requirements <0.03 mm. Through the onsite die debugging, the qualified stamping parts were produced without obvious impact line marks on the Bpillar rear wall, and the hand touch was unblocked. After painting, the vehicle shows a good light effect.

基金项目：

国家科技重大专项（2014ZX04002041）

张海洲（1987-），男，学士，工程师，E-mail：8wy2190166@163.com

参考文献：

[1]李凤仙. 汽车覆盖件冲击线的CAE识别方法及解决对策[J]. 模具工业，2016, 42(1):6-8,13.

Li F X. Application of CAE in impact line analysis and countermeasure of stamping panels[J]. Die & Mould Industry,2016,42(1):6-8,13.

[2]陈庆，李春光，刘立现.整体式侧围外板冲压成形影响因素分析[J].首钢科技，2016, (3):16-20.

Chen Q，Li C G，Liu L X. Influence factor analysis of stamping forming for integral side outer panel[J].Shougang Science and Technology，2016, (3):16-20.

[3]关来德. SUV车型侧围外板冲压工艺的数值模拟分析[J]. 锻压技术，2016,41(12):170-174.

Guan L D. Numerical simulation analysis on stamping process of side outer panel for SUV vehicle[J]. Forging & Stamping Technology, 2016,41(12):170-174.

[4]卢险峰.冷压成形技术本质特征[J].精密成形工程，2013, 5(1)：85-88.

Lu X F. Essential characteristics of cold pressure forming technology[J]. Journal of Netshape Forming Engineering, 2013, 5(1)：85-88.

[5]韩宗斌.汽车表面覆盖件常见冲压缺陷及处理措施[J].装备制造技术，2012, (8)：162-163, 176.

Han Z B. Automobile surface cover press flaw and processing measure [J]. Equipment Manufacturing Technology,2012, (8)：162-163, 176.

[6]王玉国，卫原平，沈启, 等．覆盖件拉深模工艺补充部分和压料面设计[J].上海交通大学学报，1999, 33(2)：184-187.

Wang Y G, Wei Y P, Shen Q, et al. Addendum and binder surface design for automotive panel drawing die [J]. Journal of Shanghai Jiao Tong University,1999, 33(2)：184-187.

[7]谢磊强．前纵梁冲压工艺分析[J]．模具制造，2018,(4):20-25.

Xie L Q. Analysis of stamping process for the front longitudinal beam [J]. Die & Mould Manufacture, 2018，(4):20-25.

[8]倪昀，黄亚玲，章跃洪．基于DYNAFORM汽车覆盖件冲压仿真分析[J]．热加工工艺，2011,40(11):108-111.

Ni J, Huang Y L, Zhang Y H. Stamping simulation analysis of autobody panels based on DYNAFORM [J]. Hot Working Technology, 2011，40(11):108-111.

[9]李晓超，张建伟，李硕 .后门外板轮弧滑移线问题的解决方案[J]. 模具工业，2018,44(3):17-20.

Li X C, Zhang J W, Li S. Solution on the sliding line problem of rear door outer panel fender trim[J]. Die & Mould Industry, 2018, 44(3):17-20.

[10]唐东胜，侯艳飞.汽车外覆盖件表面冲击线及滑移线成因分析及对策[J]. 模具制造，2012, (10):54-56.

Tang D S, Hou Y F. Reason analysis and solution of surface impacting line and drifting line for the auto outer panel[J]. Die & Mould Manufacture, 2012, (10):54-56.

[11]徐小清.浅谈汽车覆盖件表面滑移线[J]. 模具技术，2005, (1):41-44.

Xu X Q. Study on the slip line of automobile panel[J]. Die and Mould Technology, 2005, (1):41-44.

[12]王良芬，许乔阳，周东峰.浅谈侧围外板滑移线与冲击线的解决措施[J]. 模具工业，2017,43(8):24-27.

Wang L F, Xu Q Y, Zhou D F. Discuss on solution of impact line and slip line for lateral outer panel[J]. Die & Mould Industry, 2017,43(8):24-27.

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