锻压技术

汽车前门加强板冲压工艺参数优化

英文标题：Parameter optimization of stamping process on auto front door reinforcing plate

作者：田野吕明达黄余平

单位：长春工业大学

分类号：TG386.3

出版年,卷(期):页码：2014,39(12):35-38

摘要：

以某汽车前门加强板三维立体模型简化件为研究对象，依托CAE分析软件Dynaform建立板料冲压成形有限元模型并进行数值模拟分析。将正交试验方法与数值模拟结果有机结合，选取冲压过程中压边力、摩擦系数、模具间隙和冲压速度4个工艺参数作为正交试验中的考察因素，每个因素选取3个水平值,以板料成形后的最小厚度为成形优劣指标，分析不同因素的不同水平对数值模拟结果和成形质量的影响。结果表明，对冲压件最小厚度影响程度从大到小依次为：摩擦系数>压边力>冲压速度>模具间隙，最佳工艺参数组合为压边力300 kN、冲压速度1000 mm·s-1、摩擦系数0.10和模具间隙1.35 mm，并通过试验验证其正确性及实用性。

For three-dimensional model of simplified part, which is the front reinforcement plate of an automobile, finite element model and numerical simulation of the sheet metal forming were established by CAE analysis software Dynaform. Combining the orthogonal experiment with the numerical simulation result, the four process parameters involved in the forming process, such as blank holder force, friction coefficient, die clearance, stamping speed were selected as investigation factors, values from three different levels of every factor were selected in the orthogonal experiment. The minimum thickness after sheet metal forming process was selected as the quality indicator, and the influences of various factors at different levels on the simulation result and forming quality were analyzed. The results show that the descending order of influence degree on the minimum thickness for the stamping part is friction coefficient> blank holder force> stamping speed> die clearance. The best process parameters combination is blank holder force 300 kN, stamping speed 1000 mm·s-1, friction coefficient 0.10 and die clearance 1.35 mm, and its correctness and practicability were verified by experiment.

基金项目：

吉林省教育厅科学基金资助项目(吉教科合字[2010]第81号)

田野(1961-)，男，硕士,副教授;通讯作者：吕明达（1990-），男，硕士研究生

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