锻压技术

基于灰色关联度的筒形件二道次强力旋压工艺参数优化

英文标题：Optimization on two-pass power spinning process parameters for cylindrical parts based on grey correlation degree

作者：郭佩剑樊文欣李志伟张厚祖郝晓华

单位：中北大学

分类号：TG306

出版年,卷(期):页码：2020,45(4):108-113

摘要：

为使锡青铜筒形件具有更高的尺寸精度，对二道次强力旋压加工工艺参数进行优化。减薄率、道次分配比、第1道次进给比和第2道次进给比为主要影响筒形件成形质量的工艺参数，以筒形件的内径扩径量和壁厚偏差为优化目标。采用正交试验和灰色关联度分析法对Simufact仿真模拟软件得到的二道次仿真结果进行工艺参数优化，结果表明：各工艺参数对筒形件成形质量的影响程度依次为：减薄率＞道次分配比＞第1道次进给比＞第2道次进给比。优化后的工艺参数组合为：减薄率为40%、道次分配比为5∶5、第1道次进给比为0.6 mm·r-1、第2道次进给比为0.6 mm·r-1，所获的筒形件尺寸精度最优。

In order to make the cylindrical parts of tin bronze have higher dimensional accuracy, the process parameters of two-pass power spinning were optimized. The thinning rate, the distribution ratio of passes, the feeding ratio of the first pass and the feeding ratio of the second pass were the main process parameters that affected the forming quality of cylindrical parts. Taking the inner diameter expansion and the wall thickness deviation of cylindrical part as the optimization objective. Orthogonal experiment and grey correlation degree analysis method were used to optimize the process parameters of two-pass simulation results obtained by simulation software Simufact. The results show that the influence degree of each process parameter on the forming quality of cylindrical parts is as follows: thinning rate>distribution ratio of passes＞ feeding ratio of the first pass >feeding ratio of the second pass. The optimized combination of process parameters is as follows: the thinning rate is 40%, the pass distribution ratio is 5∶5, the feeding ratio of the first pass is 0.6 mm·r-1, the feeding ratio of the second pass is 0.6 mm·r-1, and the dimensional accuracy of the obtained cylindrical part is the best.

基金项目：

山西省自然科学基金资助项目(2012011023-2)；山西省科技攻关项目(20120321035-04)

郭佩剑(1994-)，男，硕士研究生 E-mail：511826022@qq.com 通讯作者：樊文欣(1964-)，男，博士，教授 E-mail：fanwx@nuc.edu.cn

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