锻压技术

基于正交试验的内凹形零件成形工艺参数优化

英文标题：Optimization on forming process parameters for concave part based on orthogonal test

作者：靳阳

分类号：TG386

出版年,卷(期):页码：2020,45(5):105-109

摘要：

利用Dynaform软件对内凹形零件的冲压成形过程进行了仿真模拟，研究了工艺参数对零件成形结果的影响。基于正交试验法，以零件内凹部位最大壁厚和最小壁厚为评价指标，研究了外转角、侧壁长度、内转角、拉深高度、冲压速度、压边力和摩擦系数对壁厚的影响主次关系，获得了最佳的成形工艺参数组合。研究结果表明，当外转角半径R1=10 mm、侧壁长度l=6 mm、内转角半径R2=10 mm、拉深高度h=25 mm、冲压速度v=1000 mm·s-1、压边力F=7.5 kN、摩擦系数μ=0.1时，得到零件内凹部位的壁厚综合结果最佳。将得到的最佳工艺参数进行验证试验，对比了拉深试验和仿真模拟的结果，得出零件在内凹部位壁厚的分布一致。

The stamping process of concave part was simulated by software Dynaform, and the influences of process parameters on forming effect of part were studied. Based on the orthogonal test, taking the minimum and the maximum wall thicknesses in the concave position of part as evaluation indexes, the influences of outer corner, sidewall length, internal corner, drawing height, stamping speed, blank holder force and friction coefficient on the wall thickness were studied, and the optimum combination of forming process parameters was obtained. The simulation results show that the optimum wall thickness in the concave position of part is obtained with the outer corner R1=10 mm, the sidewall length l=6 mm, the internal corner R2=10 mm, the drawing height h=25 mm, the stamping speed v=1000 mm·s-1, the blank holder force F =7.5 kN and the friction coefficient μ=0.1, and the verification test was conducted by the optimum process parameters. Furthermore, the results of drawing test and simulation are compared, and the wall thickness distributions in the concave position of part are consistent.

基金项目：

靳阳（1989-），男，硕士，工程师，E-mail：173942151@qq.com

参考文献：

[1]Brabie G, Costache E M, Chirita B. Reduction of the sheet thickness variation and its negative effects on the accuracy of mini drawn parts using different geometries of tool components[J]. Precision Engineering, 2014, 38(4):828-838.
[2]Hussaini S M, Singh S K, Gupta A K. Experimental and numerical investigation of formability for austenitic stainless steel 316 at elevated temperatures[J]. Journal of Materials Research and Technology, 2014, 3(1):17-24.
[3]Brabie G, Costache E M, Nanu N, et al. Prediction and minimisation of sheet thickness variation during deep drawing of micro/milli parts[J]. International Journal of Mechanical Sciences, 2013, 68:277-290.
[4]靳阳. 内凹型轮廓零件拉深成形性的研究[D]. 哈尔滨：哈尔滨工业大学,2015.
Jin Y. Study on Drawing Law of Box Part with Concave Contour[D]. Harbin：Harbin Institute of Technology,2015.
[5]张勇, 范轶, 薛洋. 基于Dynaform和正交试验的轿车加强梁冲压工艺参数优化[J]. 锻压技术, 2019, 44(2):42-47.
Zhang Y，Fan Y，Xue Y. Optimization on stamping process parameters of car reinforced beam based on Dynaform and orthogonal test [J]. Forging ＆ Stamping Technology，2019, 44(2):42-47.
[6]臧其其, 闫华军, 张双杰, 等. 基于Dynaform的铝合金汽车地板梁成形分析及工艺参数优化[J]. 塑性工程学报, 2019，26(2):125-131.
Zang Q Q,Yan H J,Zhang S J, et al. Forming analysis and process parameters optimization for automobile aluminum alloy floor beam based on Dynaform [J]. Journal of Plasticity Engineering，2019，26(2):125-131.
[7]苏友煌，王军辉，冯怡爽，等．汽车内覆盖件无油冲压的数值模拟及工艺优化[J].塑性工程学报，2019，26 (5): 42-50.
Su Y H，Wang J H，Feng Y S，et al.Numerical simulation and process optimization of dry stamping for automotive interior cover parts[J].Journal of Plasticity Engineering，2019，26(5):42-50.
[8]夏玉峰, 史慧欣, 张严东, 等. 工艺参数对方形盒拉深成形性能的影响[J]. 热加工工艺, 2014, 43(5):123-125.
Xia Y F，Shi H X，Zhang Y D，et al. Effects of process parameters on deep drawing performance of square box [J]. Hot Working Technology，2014, 43 (5):123-125.
[9]崔令江. 汽车覆盖件冲压成形技术[M].北京：机械工业出版社，2003.
Cui L J. Stamping Technology of Automobile Panel[M].Beijing: China Machine Press，2003.
[10]陈泽中，李响，刘欢，等.基于Dynaform的SUV汽车B柱热冲压成形仿真分析与工艺研究[J].塑性工程学报，2019，26(4):113-119.
Chen Z Z，Li X，Liu H，et al.Simulation analysis and process research of hotstamped SUV Bpillar based on Dynaform[J].Journal of Plasticity Engineering，2019，26 (4):113-119.
[11]朱书建，李健，林贤坤，等.基于正交试验法的T型三通管内高压成形仿真与优化[J].锻压技术，2018，43 (9):75-82.
Zhu S J，Li J，Lin X K，et al.Simulation and optimization on hydroforming of Tshape tube based on orthogonal experiment [J].Forging ＆ Stamping Technology，2018，43 (9): 75-82.
[12]Zhang D, Bai D, Liu J, et al. Formability behaviors of 2A12 thinwall part based on DYNAFORM and stamping experiment[J]. Composites Part B: Engineering, 2013, 55: 591-598.

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