锻压技术

油箱盖板拉深成形的有限元分析及工艺参数优化

英文标题：Finite element analysis and process parameters optimization of deep drawing for tank cover

作者：穆瑞刘奎武岳陆游王晓莉

分类号：TG386

出版年,卷(期):页码：2016,41(3):140-143

摘要：

以油箱盖板为研究对象，利用Dynaform有限元软件模拟了油箱盖板的拉深成形过程，分析了板料拉深成形过程中的起皱与拉裂等缺陷，选取模具间隙、冲压速度以及压边力3种工艺参数进行正交试验及参数优化，通过正交试验的极差分析得出影响油箱盖板最大减薄率的主次顺序为：模具间隙、压边力、冲压速度。此外由方差分析可知模具间隙及压边力对最大减薄率的影响显著。模拟结果表明，油箱盖板拉深成形的最优工艺方案为：模具间隙1.5t，冲压速度3000 mm·s-1以及压边力60 kN，其零件的最大减薄率及最大增厚率分别为13.23%与11.12%。采用拉深模具对优化后的工艺方案进行实验验证，零件的最大减薄率及最大增厚率分别为14.87%与12.64%，模拟结果与实验结果比较吻合，且油箱盖板的成形质量较好。

The deep drawing of tank cover was simulated by finite element software Dynaform, and the defects of cracks and wrinkles were analyzed. The die clearance, stamping speed and blank holder force were chosen as process parameters to carry out orthogonal experiment and optimization of parameters, and the sequence of influence on the maximum thinning rate of tank cover was obtained by range analysis of orthogonal experiment as die clearance, blank holder force and stamping speed. Furthermore, the influences of die clearance and blank holder force on the maximum thinning rate of sheet metal are significant. The simulation results show that the maximum thinning rate and the maximum thickening rate are 13.23% and 11.12% respectively under the optimal process parameters with die clearance 1.5t, stamping speed 3000 mm·s-1 and blank holder force 60 kN. The optimized process scheme was verified by experiment, and experimental results were obtained that the maximum thinning rate and the maximum thickening rate are 14.87% and 12.64% respectively. As a result, the simulation results are in good agreement with the experimental results, and the forming quality of tank cover is good.

基金项目：

2013年度省科技支撑计划（工业）重点项目课题(BE2013009-4)

穆瑞（1975-），男，硕士，副教授

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