锻压技术

基于Dynaform的6016-T4P铝合金汽车机舱盖模面优化

英文标题：Optimization on die face of engine compartment cover for 6016-T4P aluminum alloy based on Dynaform

作者：田国富李文杰李君基

分类号：TG389

出版年,卷(期):页码：2020,45(1):55-62

摘要：

以Dynaform 5.9软件为平台，对某车型6016-T4P铝合金机舱盖外覆盖件进行全工序冲压成形数值模拟及模面结构参数优化。通过设计5因素4水平的正交试验，研究了凹模圆角半径、凸模圆角半径、拔模斜度、修边延长量、模面高度对机舱盖外覆盖件冲压成形的影响。在正交试验最优结构参数组合的基础上，结合模面补偿技术，研究了回弹量随补偿因子的变化趋势。模拟结果表明：拔模斜度对最大减薄率影响较大，凹模圆角半径对最大主应变影响较大，修边延长量对回弹量影响较大。当补偿因子取1.0时，回弹补偿效果最好。经成形试验，得到了合格的产品，验证了模拟的正确性。

Based on software Dynaform 5.9, the numerical simulation on the whole process of stamping and the optimization on the die face structure parameters for the engine compartment cover of 6016-T4P aluminum alloy were conducted. And the influences of die corner radius, punch corner radius, draft angle, trimming lengthening and die height on the stamping of engine compartment cover were studied by designing the orthogonal test with five factors and four levels. On the basis of the optimum structure parameter combination of orthogonal test, the variation trend of springback amount with the compensation factor was studied by the die face compensation technique. The simulation results show that the draft angle has a great influence on the maximum thinning rate, the die corner radius has a great influence on the maximum principal strain, and the trimming lengthening has a great influence on the springback amount. When the compensation factor is 1.0, the effect of springback compensation is the best. After the forming test, a qualified product was obtained to verify the correctness of simulation.

基金项目：

辽宁省自然科学基金项目(20170540674)

作者简介：田国富（1968-），男，工学博士，教授 E-mail：tianguofu@126.com 通讯作者：李文杰（1994-），男，硕士研究生 E-mail：454805310@qq.com

参考文献：

[1]聂昕.汽车板件回弹相关问题的研究[D]. 湖南：湖南大学,2008.

Nie X. Research on the Rebound Related Problem of Automobile Panels [D]. Hunan: Hunan University, 2008.

[2]刘海静.汽车顶盖冲压成形数值模拟及回弹优化研究[D].长春：长春工业大学,2016.

Liu H J. Numerical Simulation and Springback Optimization of Au-tomobile Roof Stamping Forming [D]. Changchun: Changchun University of Technology, 2016.

[3]赵文亮.客车车身骨架中段采用铝合金材料的车身结构有限元分析与优化[D].西安：长安大学,2016.

Zhao W L. Finite Element Analysis and Optimization of the Body Structure of Aluminum Alloy Material in the Middle Section of Passenger Car Body Frame [D]. Xian: Changan University, 2016.

[4]王鸿波,何昌协.铝合金车身板材在汽车轻量化中的应用[J].世界有色金属,2018，(7):186-187.

Wang H B, He C X. Application of aluminum alloy body plate in automobile lightweighting [J].World Nonferrous Metals,2018，(7):186-187.

[5]金飞翔,钟志平,李凤娇,等.不同硬化模型对铝合金板冲压成形模拟结果的影响[J].机械工程学报,2017,53(22):57-66.

Jin F X, Zhong Z P, Li F J, et al. Influence of different hardening models on the simulation results of aluminum alloy sheet stamping forming [J]. Journal of Mechanical Engineering, 2017, 53(22): 57-66.

[6]居龙,毛婷婷,李洪波,等.冲压速度对铝合金5182-O拉深性能的影响[J].中南大学学报:自然科学版,2016,47(8):2643-2649.

Ju L, Mao T T, Li H B, et al. Effect of stamping speed on the deep drawing performance of aluminum alloy 5182-O [J]. Journal of Central South University: Natural Science, 2016, 47(8): 2643-2649.

[7]GB/T 228.1—2010, 金属材料拉伸试验第1部分:室温试验方法[S].

GB/T 228.1—2010, Metallic Materials—Tensile test—Part 1: Method of test at room temperature [S].

[8]吴闯,王玲.拉延工艺设计浅谈[J].电子世界,2013,(23):171-172.

Wu C, Wang L. Discussion on the design of drawing process [J]. Electronic World, 2013,(23):171-172.

[9]Belytschko T, Wong B L, Plaskacz E J. Fission-fusion adaptivity in finite elements for nonlinear dynamics of shells[J].Computers and Structures,1989,33(5):1307-1323.

[10]张正法,祁文军,卢大平.Dynaform与Autoform在汽车模具设计中的应用[J].汽车零部件,2009，(3):71-73.

Zhang Z F, Qi W J, Lu D P. Application of Dynaform and Autoform in automobile mould design[J]. Auto Parts,2009,(3):71-73.

[11]程鹏,金飞翔,邵晨曦,等.基于正交试验的铝合金覆盖件模面优化[J].汽车工程,2019,41(1):96-102.

Cheng P, Jin F X, Shao C X, et al. Die surface optimization of aluminum alloy cover based on orthogonal experiment [J]. Automotive Engineering, 2019, 41(1): 96-102.

[12]何为,薛卫东,唐斌.优化试验设计方法及数据分析[M].北京:化学工业出版社,2012.

He W, Xue W D, Tang B. Optimized Experimental Design Method and Data Analysis [M]. Beijing:Chemical Industry Press, 2012.

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