锻压技术

基于响应曲面法的传动带成形工艺参数优化

英文标题：Optimization on process parameters of leaf spring based on response surface method

作者：李兵刘奎武高鹏拾以超

分类号：TG386

出版年,卷(期):页码：2017,42(2):189-192

摘要：

以弹性元件传动带为研究对象，基于响应曲面法与DYNAFORM软件对冲压成形工艺参数进行优化。利用中心设计组合方法选择仿真试验的工艺参数，通过数值仿真得出传动带成形高度的响应值，结合最小二乘法建立了反映工艺参数与成形高度之间关系的二阶响应面模型。以弯曲角度、模具间隙以及冲压速度作为设计变量，将成形高度作为优化目标，借助Design Expert v8.0.5软件对二阶响应面模型进行优化，通过优化得出传动带冲压成形的最优工艺参数组合，即弯曲角度为150°，模具间隙为1.02t，冲压速度为3004 mm·s-1，成形高度的响应值为5.69 mm。利用冲压级进模对响应值进行试验验证，试验值为5.61 mm，它与响应值之间的相对误差为1.43%，从而验证了响应曲面法应用于传动带冲压成形工艺参数优化的准确性。

For elastic component leaf spring, the forming process parameters were optimized based on response surface method and DYNAFORM. Then, the process parameters of numerical simulation were chosen by the method of central composite design, the response value of forming height for leaf spring was obtained by numerical simulation, and the second-order response surface model was established to reflect the relationship between process parameters and forming height by the least square method. Furthermore, the second-order response surface model with design variables of process parameters, such as bending angle, die clearance and stamping speed and optimization objective of forming height was optimized by the Design Expert v8.0.5, and the best combination of process parameters was acquired with bending angle 150°, die clearance 1.02t, stamping speed 3004 mm·s-1 and the response value of forming height 5.69 mm. At last, the response value was verified by the experimental value 5.61 mm of progressive die, and the relative error between experimental value and response value is 1.43%. Therefore, the accuracy of the response surface method applied in the optimization of forming process parameters of leaf spring was verified.

基金项目：

淮安市重点研发计划(工业及信息化)(HAG2015018)

李兵（1983-），男，硕士，讲师

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