Transactions of Materials and Heat Treatment

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

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ClassificationCode：TG306

year,vol(issue):pagenumber：2020,45(4):108-113

Abstract：

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.

Funds：

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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