锻压技术

基于响应曲面法的预成形模具优化设计

英文标题：Preforming die optimization design based on response surface methodology

作者：张子伟马新武

单位：山东大学

分类号：TG316

出版年,卷(期):页码：2017,42(9):129-134

摘要：

采用响应曲面法对预成形模具形状进行了优化设计，以终锻件能够完全充满型腔且飞边最小为优化目标，建立了数学建模。以工字型锻件为例，设计出了直线、圆弧和曲线3种预锻模形状，提取了直线的角度、圆弧的半径、四次曲线的拐点位置为设计变量。以Deform 2D为有限元模拟软件，对每种预锻模形状进行锻造过程模拟，根据模拟出的实验数据求得目标函数值。用曲线拟合软件1st Opt对形状设计变量和目标函数值之间的相互关系进行曲线拟合，得到相应的曲线方程，并对曲线方程求最优解，从而获得最佳角度为41°，最佳半径为109.1 mm，最佳拐点位置为0.3。通过对3种最优预锻模形状的比较，得出四次曲线型预锻模为最佳预锻模形状。

The shape of preforming die was optimized by response surface method, and a mathematic model was established with the optimization goal of fully filling the cavity and the minimum flash for finished forging. For I-shaped forging, the shapes of preforming die with straight line, arc and curve were designed respectively, and angles of the straight line, radius of arc, and the locations of inflection point of four curves were extracted as the design variables. Then, the forging process with three different preforming dies was simulated by finite element software Deform 2D, and the value of objective function could be obtained based on the calculated data. Furthermore, the relationship between design value and objective function was fit by the curvilinear fitting software 1st Opt, and the curvilinear fitting equation was confirmed. Finally, the optimal solutions of the equation with the optimal angle (41°), optimal radius (109.1 mm) and optimal turning point position (0.3) were obtained. By comparing three optimal shapes of preforming die, Quartic curve type is the best one.

基金项目：

华中科技大学模具国家重点实验室开放基金资助项目(20140101)

作者简介：张子伟(1986-)，男，硕士，讲师 E-mail：41872293@qq.com 通讯作者：马新武(1975-)，男，博士，副教授 E-mail: maxinwu@sdu.edu.cn

参考文献：

［1］胡兆国, 朱超, 曹素兵. 基于数值模拟的支撑座冲压工艺及模具设计[J]. 锻压技术, 2015,40(9):100-106.

Hu Z G, Zhu C, Cao S B. Stamping process and mold design of the support base by numerical simulation [J]. Forging & Stamping Technology, 2015, 40(9):100-106.

［2］杨俊英, 运新兵, 赵颖，等. 型腔结构对AZ31镁合金连续挤压扩展成形规律的影响[J]. 稀有金属，2016,40(4):307-314.

Yang J Y, Yun X B, Zhao Y, et al. Expansion forming of AZ31 magnesium alloy with two types of cavity structures during continuous extrusion process [J]. Chinese Journal of Rare Metals, 2016, 40(4):307-314.

［3］樊黎霞, 王贺, 王志刚. 身管膛线精锻成形金属流动与变形分析[J]. 精密成形工程, 2013, 5(1):20-24.

Fan L X, Wang H, Wang Z G. Analysis of metal flow in radial forging process for barrel rifling [J]. Journal of Netshape Forming Engineering, 2013, 5(1):20-24.

［4］高涛, 杨合, 刘郁丽. 面向钛合金叶片精锻变形均匀预成形设计的三维有限元反向模拟[J]. 稀有金属材料与工程, 2012,41(4):640-644.

Gao T, Yang H, Liu Y L. Implementation of 3D backward simulation for preform design with uniform deformation in net-shape forging of blade of titanium alloy [J]. Rare Metal Materials and Engineering, 2012, 41(4):640-644.

［5］管婧, 王广春, 赵国群. 基于有限元灵敏度分析的锻造成形微观组织优化设计[J]. 塑性工程学报, 2007, 14(6):6-10.

Guan J, Wang G C, Zhao G Q. The microstructure optimal design using sensitivity analysis methods in forging process [J]. Journal of Plasticity Engineering, 2007, 14(6):6-10.

［6］刘华, 江开勇, 林俊义. 基于遗传算法和仿真的冲压材料参数反求[J].华侨大学学报:自然科学版,2013,34(5):485-488.

Liu H, Jiang K Y, Lin J Y. Inverse identification of material parameters in stamping based on numerical simulation and genetic algorithm [J]. Journal of Huaqiao University: Natural Science, 2013, 34(5):485-488.

［7］邵勇, 陆彬, 任发才，等. 基于变形均匀的叶片锻造预成形拓扑优化设计[J]. 上海交通大学学报,2014,48(3):399-404.

Shao Y, Lu B, Ren F C, et al. Preform design with improvement of deformation uniformity in blade forging based on topology optimization method [J]. Journal of Shanghai Jiaotong University, 2014, 48(3):399-404.

［8］邵勇, 陆彬, 陈军，等. 基于渐进优化的锻造预成形优化设计研究 [J].机械工程学报,2012,48(22):65-71.

Shao Y, Lu B, Chen J, et al. Research on optimal design of preform of forging based on evolutionary structural optimization [J]. Chinese Journal of Mechanical Engineering, 2012, 48(22):65-71.

［9］赵文魁, 赵圣哲, 马万里. 响应曲面法在VDMOS设计中的应用[J]. 电子与封装, 2014,14(10):30-32.

Zhao W K, Zhao S Z, Ma W L. The applications of response surface methodology in VDMOS design [J]. Electronics ＆ Packaging, 2014,14(10):30-32.

［10］陈炎嗣.冲压模具设计使用手册[M]. 北京:化学工业出版社, 2016.

Chen Y S. Stamping Mould Design Manual [M]. Beijing: Chemical Industry Press, 2016.

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