锻压技术

基于数值模拟的汽车冲压模具轻量化研究

英文标题：Research on lightweight of automobile stamping die based on numerical simulation

作者：王辉刘莉滋王海宝周杰卓芳

单位：1.重庆三峡学院机械工程学院重庆404130 2.重庆市轻合金材料与加工工程技术研究中心重庆 404130 3.重庆大学材料科学与工程学院重庆 400044

分类号：TG386

出版年,卷(期):页码：2019,44(5):116-120

摘要：

针对汽车覆盖件铸造基体的冲压模具，研究了汽车冲压模具轻量化优化方法。以汽车后地板为研究对象，借助数值模拟软件,对拉延成形工序进行数值模拟，得到模具成形过程所受载荷。将分析得到的凸模最大载荷映射到划分网格的模具型面上，建立静力分析有限元模型，得到原模具的最大变形位移为0.0324 mm。采用汽车冲压模具轻量化优化方法，对后地板模具的凸模进行结构优化，得到优化后凸模的质量为2772 kg，优化后的模具最大变形位移为0.0297 mm。与原模具相比，优化后模具质量降低20%，最大变形位移减小。数值模拟结果表明，本方法在保证模具刚度的前提下，可以有效地降低模具的质量。

For the stamping die of casting base for automobile cover part, the lightweight optimization method of automobile stamping die was studied by numerical simulation. Taking the automobile rear floor as the research object, the drawing process was simulated by numerical simulation software, and the load in the drawing process was obtained. Then, the maximum load of punch was mapped to the die surface divided by the meshes, the finite element model with the static analysis was established, and the maximum deformation displacement of original punch was 0.0324 mm. Furthermore, the structure of the punch was optimized according to the lightweight optimization method, the weight of the optimized punch was 2772 kg, and the maximum deformation displacement was 0.0297 mm. Compared with the original punch, the weight of punch is reduced by 20% and the maximum deformation displacement is reduced after optimization. The numerical simulation results show that the method can effectively reduce the weight of die on the premise of ensuring the rigidity of die.

基金项目：

重庆市教委科学技术研究项目（KJQN201801228）；重庆市高校工程研究中心基金（2019yjzx0101）

作者简介：王辉(1989-)，男，博士，讲师 Email：wanghui@sanxiau.edu.cn

参考文献：

［1］Chen J, Xu D, Xia G, et al. Geometric compensation for automotive stamping die design integrating structure deflection and blank thinning
［J］. The International Journal of Advanced Manufacturing Technology, 2013, 66(9): 1449-1456.[ZK)]

［2］Keum Y T, Ahn I H, Lee I K, et al. Simulation of stamping process of automotive panel considering die deformation
［J］. 2005, 778(1): 90-95.[ZK)]

［3］王辉. 汽车冲压模具短周期开发关键技术研究
［D］. 重庆：重庆大学, 2017.

Wang H. Study of Key Technology of Automobile Stamping Die Short Cycle Development
［D］. Chongqing:Chongqing Univerisity, 2017.[ZK)]

［4］于磊. 考虑模具弹性变形的先进高强钢冲压回弹控制与结构拓扑优化
［D］.上海：上海交通大学, 2012.

Yu L. Advanced Highstrength Steel Stamping Springback Control and Structural Topology Optimization Considering Mold Elastic Deformation
［D］. Shanghai:Shanghai JiaoTong University, 2012.[ZK)]

［5］刘利,常新. 汽车冲压模具降低成本的路径与对策
［J］. 消费导刊,2017,(11):54-55.

Liu L, Chang X. The path and countermeasures of reducing the cost of automobile stamping die
［J］. Consumption Tribune, 2017,(11):54-55.[ZK)]

［6］Siva R K L, Mahesh N, Sateesh N. Topology optimization using solid isotropic material with penalization technique for additive manufacturing
［J］. Materials Today: Proceedings, 2017, 4(2):1414-1422.[ZK)]

［7］Xu X, Wang L, Liu G, el al. Optimal design of dual derricks
［J］. International Journal of Modelling Identification & Control, 2012, 17 (1): 61-67.[ZK)]

［8］徐晓，王二冬，夏琴香，等. 基于变密度法的级进模模具结构拓扑优化设计
［J］. 机械设计与制造. 2018，(4): 90-93.

Xu X, Wang E D, Xia Q X, et al. Structural topological optimization of multiposition progressive die based on variable density meth
［J］. Machinery Design & Manufacture. 2018，(4): 90-93.[ZK)]

［9］张铖,梁宪珠,胡江波,等.拓扑优化在框架式模具结构选形中的应用
［J］.航空制造技术,2012,(9):62-63,68.

Zhang C, Liang X Z, Hu J B, et al. Application of topology optimization in structure selection of frame mould
［J］.Aeronautical Manufacturing Technology,2012,(9):62-63,68.[ZK)]

［10］吴业全，朱灯宏，张波，等. 基于板料成形的冲压模具节点接触力映射方法
［J］. 装备维修技术, 2018,(2): 22-25.

Wu Y Q, Zhu D H, Zhang B, et al. Node contact force mapping method on panel stamping die
［J］. Equipment Technology, 2018,(2): 22-25.[ZK)]

［11］谢晖,刘源,张建.高强度钢板冲压模具强度分析与结构优化
［J］.热加工工艺,2015,44(23):115-117,121. 

Xie H, Liu Y, Zhang J. Strength analysis and structure optimization of stamping die for high strength steel sheet
［J］.Hot Working Technology,2015,44(23):115-117,121. [ZK)]

［12］张金亚,胡玉柱. 基于Dynaform数值模拟的挖掘机门板冲压成形
［J］.现代制造技术与装备,2017,(4):116-118. 

Zhang J Y, Hu Y Z. Dynamometer numerical simulation of excavator door stamping
［J］.Modern Manufacturing Technology and Equipment,2017,(4):116-118. [ZK)]

［13］胡晓,刁可山,李雷. Dynaform与Autoform在铝板冲压成形模拟中的比较
［J］.塑性工程学报,2017,24(3):31-35.[JP]

Hu X, Diao K S, Li L. Comparison of Dynaform with Autoform in the simulation of aluminum sheet stamping
［J］.Journal of Plasticity Engineering,2017,24(3):31-35.

服务与反馈：

【本网站尚未开通全文下载服务】【加入收藏】