锻压技术

基于Dynaform及响应面法的6016铝合金散热壳体冲压成形及优化

英文标题：Stamping and optimization on 6016 aluminum alloy radiator shell based on Dynaform and response surface method

分类号：

出版年,卷(期):页码：2022,47(3):54-58

摘要：

以6016铝合金散热壳体为研究对象，通过分析零件的成形工艺，确定采用Dynaform软件对零件的拉深成形工艺进行有限元模拟，以零件的最大减薄率为评价其成形质量的指标。基于正交试验设计，研究了压边力、摩擦因数、冲压速度以及模具间隙对零件成形质量的影响规律。基于灰色系统（GS）理论分析出与零件最大减薄率关联度较高的工艺参数，并通过响应面法（RAM）进行中心复合设计（CCD），得到最优的工艺参数组合为：压边力为20.1 kN、摩擦因数为0.16、冲压速度为1500 mm·s-1、模具间隙为1.05 mm，零件最大减薄率为23.029%。将采用该方案制得的实体零件与数值模拟结果进行对比和分析，结果表明数值模拟分析结果具有可靠性，可为散热装置零件的成形提供一定指导。

For 6016 aluminum alloy radiator shell, by analyzing the forming process of part, the finite element simulation of the deep drawing process for part was

conducted by using software Dynaform, and the maximum thinning rate of part was used as the index to evaluate its forming quality. Then, based on the orthogonal test design, the influence laws of blank holder force, friction coefficient, stamping speed and die clearance on the forming quality of part were studied, and based on grey system (GS) theory, the process parameters with high correlation with the maximum thinning rate of part were analyzed, and the central composite design (CCD) was conducted by the response surface method (RAM). Furthermore, the optimal process parameter combination was obtained with the blank holder force of 20.1 kN, the friction coefficient of 0.16, the stamping speed of 1500 mm·s-1, the die clearance of 1.05 mm, and the maximum thinning rate of part was 23.029%.The comparison and analysis between the solid parts made by this scheme and the numerical simulation results show that the numerical simulation analysis results are reliable, which could provide some guidance for the forming of radiator parts.

基金项目：

尤晋（1998-），男，硕士研究生 E-mail：1002086445@qq.com 通信作者：龚红英（1974-），女，博士，教授 E-mail：ghyyw1974@163.com

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