锻压技术

QT8812汽车发动机油底壳拉深工艺参数模拟及试验分析

英文标题：Simulation and experiment analysis on drawing technological parameter of car engine oil pan QT8812

作者：覃天周世海周凯红

单位：桂林理工大学

关键词：压边力拉深起皱

分类号：TG386

出版年,卷(期):页码：2015,40(12):169-175

摘要：

针对QT8812汽车发动机油底壳腰部圆弧在拉深成形时容易出现的起皱现象，通过控制深浅盒连接面斜度，即分别采取45°，50°，55°, 60°和65°这5个连接面斜度进行不同压边力下的拉深成形数值模拟。首先进行5个方案的一次拉深成形数值模拟，选取不同的压边力进行拉深成形，保留每个方案中的最优压边力方案,再以这些方案模型作为毛坯，进行二次拉深成形模拟，探索最优成形工艺参数。对比结果分析发现，在600 kN的压边力下，连接面斜度为60°时的拉深成形工艺方案为最优方案。最后采用最优方案进行拉深成形试验，试验结果与模拟结果很接近，起皱现象明显减少。

Wrinkles often appear in the circular arc in the forming of car engine oil pan QT8812. The numerical simulations of deep drawing on different blank holder forces were carried out by controlling the slope of the connectable surface with 45°,50°,55°,60°,65° respectively. Based on the above five different design schemes, the first deep drawing process was simulated with the different blank holder forces, and the optimization scheme was chosen. According to the optimal formed part, the second deep drawing was simulated, and the optimization technological parameters were explored. Comparing the results of different schemes, it is showed that the scheme of 60° connectable surface is the best under 600 kN blank holder force. Finally, the deep drawing experiment was conducted with the optimization scheme. The experimental result is close to the simulation result, and the wrinkle reduces significantly.

基金项目：

国家自然科学基金资助项目（51265008）

作者简介：覃天（1981-），男，硕士，工程师通讯作者：周世海(1990-),男，学士，助理工程师

参考文献：

［1］李奇涵，王文广，邓义，等. 基于数值模拟的油箱底壳拉延筋设置与优化]J].锻压技术，2014，39(12):31-34.Li Q H，Wang W G，Deng Y，et al. Design and optimization of drawbead of oil pan drawing based on numerical simulation[J].Forging & Stamping Technology, 2014，39(12):31-34.
［2］肖良红，罗慧娜，向俊仲，等.基于Autoform的轿车行李箱内板成形工艺优化[J].锻压技术，2014，39(6)：60-64.Xiao L H，Luo H N，Xiang J Z，et al. Forming process optimization for inner panel of car trunk lid based on Autoform[J]. Forging & Stamping Technology，2014，39(6)：60-64.
［3］田野，吕明达，黄余平. 汽车前门加强板冲压工艺参数优化[J].锻压技术， 2014，39(12):35-38.Tian Y，Lv M D，Huang Y P. Parameter optimization of stamping process on auto front door reinforcing plate[J].Forging & Stamping Technology, 2014，39(12):35-38.
［4］胡建华，覃天，苏广才. CN100汽车发动机油底壳二次拉深模拟及实验研究[J].锻压技术，2011,36（6）：154-158.Hu J H, Qin T,Su G C. Two times deep drawing simulation and experimental study of CN100 car engine oil pan[J]. Forging & Stamping Technology, 2014，36(6):154-158.
［5］胡建华，覃天.CN100汽车发动机油底壳一次拉深成形探索研究[J].装备制造技术，2012,36(6):22-24. Hu J H, Qin T. CN100 automobile engine oil pan for one-step drawing exploration and research[J].Equipment Manufactring Technology， 2012,36(6):22-24.

服务与反馈：

【文章下载】【加入收藏】