Transactions of Materials and Heat Treatment

Title：Optimization of process parameters in engine heat shield stamping

Authors： Qin Boying Tang Shufang Lin Xiankun Wang Tiefeng

Unit： Guangxi University of Science and Technology

KeyWords： stamping forming Dynaform software thinning rate wrinkling rate weighting function

ClassificationCode：TG386.41

year,vol(issue):pagenumber：2015,40(9):27-32

Abstract：

The simulation model of stamping of a certain type of engine heat shield was established by numerical simulation software Dynaform. Base on the simulation model, the weighting objective function was constructed by setting process parameters as the optimization variables, the maximum thinning rate and wrinkling rate as evaluation values. A quadratic polynomial regression model with process parameters and weighted objective function was established by uniform design to simulate experiments numerically and regression analysis to experimental data. The maximum process parameters were solved by the real coded genetic algorithm to form heat shield. The numerical simulation optimization results show that the maximum of thinning rate and wrinkle rate are 24.748% and 6.791% respectively, which are within a good range by optimizing process parameters for the engine heat shield.

Funds：

广西自然科学基金资助项目(2012GXNSFAA053208)；广西区教育厅立项项目(LX2014197)

覃柏英（1979-），女，硕士，讲师;通讯作者：汤淑芳（1988-），女，硕士研究生

Reference：

［1］Lan F, Lin J, Chen J. An integrated numerical technique in determining blank shape for net shape sheet metal forming[J]. Journal of Materials Processing Technology, 2006, 177(1/3): 72-75.
［2］Naceur H, Guo Y Q, Batoz J L, et al. Shape optimum design of blank contours using a simplified inverse approach [A]. NUMIFORM’ 98 [C]. Enschede, Netherlands，1998.
［3］Naceur H, Guo Y Q, Batoz J L, et al. Optimization of draw bead restraining forces and draw bead design in sheet metal forming Process[J]. International Journal of Mechanical Sciences, 2001, (43): 2407-2434.
［4］谢晖, 杨旭静, 成艾国, 等. 计算机仿真中板料冲压成形压边力的优化[J]. 中国机械工程, 2002, 13(22): 1910-1914.Xie H, Yang X J, Cheng A G , et al. Optimization of binder force during computer simulation[J]. China Mechanical Engineering, 2002, 13(22): 1910-1914.
［5］谢晖，钟志华. 基于CAE和神经网络的压边力优化[J]. 机械工程学报, 2004, 40(7): 105-109.Xie H, Zhong Z H. Optimization of binger force based CAE and neural net[J]. Chinese Journal of Mechanical Engineering, 2004, 40(7): 105-109.
［6］崔令江, 杨玉英, 朱玉萍. 利用神经网络构建方盒件成形数值模拟模型[J]. 塑性工程学报, 2005, 12(1): 20-23.Cui L J, Yang Y Y, Zhu Y P . Establishing numerical simulation model of square-box parts forming with ANN[J]. Journal of Plasticity Engineering, 2005, 12(1): 20-23.
［7］朱梅云, 傅建, 崔礼春. G系列叉车发动机机罩冲压成形工艺参数优化[J]. 锻压技术, 2014,39(9):27-30.Zhu M Y, Fu J, Cui L C . Optimization of stamping parameters for G series forklift engine hood[J]. Forging ＆ Stamping Technology, 2014,39(9):27-30.
［8］朱茂桃, 赵剡水, 何志刚, 等. 均匀设计方法在车辆翼子板成形中的应用[J]. 农业机械学报, 2006, （9）: 180-183.Zhu M T, Zhao Y S, He Z G, et al. Application of uniform design method in vehicle fender stamping[J]. Transactions of the Chinese Society for Agricultural Machinery, 2006, （9）:180-183.
［9］李毅, 张火土, 李延平, 等. 基于正交试验法的车用侧墙板冲压成形工艺参数分析[J]. 锻压技术, 2012, 37(2): 21-24.Li Y, Zhang H T，Li Y P, et al. Analysis of stamping process parameters on formability of automotive sidewall plate based on orthogonal experiment[J]. Forging & Stamping Technology, 2012, 37(2): 21-24.
［10］闫盖, 郑燕萍, 张文彦. 基于正交试验的板料冲压成形工艺参数优化[J]. 热加工工艺, 2013, 42(17): 94-97.Yan G, Zheng Y P, Zhang W Y . Process parameters optimization of sheet stamping forming based on orthogonal experiment[J]. Hot Working Technology, 2013, 42(17): 94-97.

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