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汽车前围板拉延成形模面及工艺优化
英文标题:Optimization of the die surface and forming process for car dash panel
作者:彭广威 
单位:湖南汽车工程职业学院 
关键词:汽车前围板 拉延成形 数值模拟 凹模型面 起皱 开裂 
分类号:TG386
出版年,卷(期):页码:2015,40(9):151-154
摘要:

汽车复杂覆盖件的拉延模面决定了冲压件的成形性、表面质量和尺寸精度,合理设计工艺补充面可以有效改善板料变形的均匀性。基于CAD/CAE协同设计思路,对某新款汽车前围板零件拉延成形过程进行数值模拟,通过对模拟结果的分析,设计合理的拉延成形模面,同时进一步优化成形工艺参数。对模拟结果与实际成形产品进行板料厚度对比分析发现,优化后的模拟结果与实际成形产品的变化趋势相同,验证了模拟精度的可靠性。因此,通过冲压成形数值模拟可以有效预测板料的成形缺陷,极大地缩短产品周期,节约成本。

The drawing die surface of complex automotive covering parts determines the formability, surface quality and dimensional accuracy of the stamping, a reasonable design of addendum surface can effectively improve the uniformity of sheet metal deformation. Based on CAD/CAE collaborative design ideas, the stamping process of a new car dash panel part was simulated. Then, the proper drawing die surface was designed, and forming parameters were optimized by simulation results analysis. The contrast analysis of the sheet thickness between the simulation results and the actual forming product shows that the optimized simulation results and the actual forming products have the same change. Therefore, the reliability of simulation precision is verified. Further, the forming defects of sheet metal can be predicted effectively by numerical simulation of the forming process, and the product cycle can be shorten greatly and cost can be saved.
 

基金项目:
2014年湖南省高等学校科学研究项目“基于三维数字化RE与CAE技术的汽车前围板结构及工艺优化”(14C1202)
作者简介:
彭广威(1975-),男,博士,副教授
参考文献:


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