锻压技术

基于DynaForm技术和正交试验的引擎盖内板冲压工艺参数优化

英文标题：Optimization on stamping process parameters of engine cover inner plate based on orthogonal test and DynaForm technology

作者：张勇

单位：四川科技职业学院

关键词：引擎盖内板冲压成形破裂起皱数值模拟正交试验

分类号：TH164

出版年,卷(期):页码：2018,43(4):64-69

摘要：

以DynaForm 5.9仿真软件为平台，以某型越野车引擎盖内板为研究对象，建立有限元模型，并进行坯料优化、材料与模具参数设置、工艺补充设计及冲压速度、拉延筋尺寸等成形工艺参数设置，采用正交试验仿真模拟与方差分析相结合，分析了冲压速度、压边力、凸凹模间隙和摩擦系数等工艺参数对内板零件成形质量的影响规律，进而优化得出最佳的成形工艺方案。并对模拟得出的优化工艺方案进行试验验证，结果发现试验结果与模拟结果一致，零件主体部分成形效果良好，废品率控制在0.05%以内，内板仿真模拟厚度与实际厚度偏差在2.5%以内，证明了仿真结果的可靠性。

Based on the DynaForm 5.9 simulation software, for the engine cover inner plate of an off-road vehicle, the finite element model was established, and the billet optimization, parameter setting of material and mold, design of process addendum and process parameter setting of stamping speed and drawbead size, etc. were conducted. Then, the influences of punching speed, blank holder force, clearance between punch and die and friction coefficient on the forming quality of inner plate parts were analyzed by the orthogonal test simulation and variance analysis, and the optimal forming process was selected. Furthermore, the optimization process was verified by experiment. The results show that the experiment and simulation results are consistent with each other, and the main body of part forms better. Therefore, the reliability of simulation results is verified by the rate of wastes within 0.05%, and the deviation between simulation and actual thicknesses of inner plate is within 2.5%.

基金项目：

张勇（1984-），男，硕士，讲师；E-mail：sckjxyzy@163.com

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