Transactions of Materials and Heat Treatment

Title：Optimization on power spinning parameters for connecting rod bushing based on grey relational degree

Authors： Xi Qihao Fan Wenxin Lv Wei Chen Dongbao

Unit： North University of China

KeyWords： power spinning connecting rod bushing grey correlation degree mechanical property

ClassificationCode：

year,vol(issue):pagenumber：2016,41(7):114-117

Abstract：

The selection of power spinning process parameters critically influence connecting rod bushing mechanical properties, production costs and production efficiency. The power spinning under different parameters was conducted by orthogonal experiment method. Taking brinell hardness, yield strength, tensile strength of the workpiece after spinning as evaluation index, the optimization of multi-objective parameters was conducted through analyzing its correlation coefficient and gray correlation degree， and the optimized parameter combination of power spinning and the influence degree on the evaluation index were obtained. Furthermore, the parameter combinations of high power spinning obtained by multi-objective optimization and orthogonal optimization were compared and verified. The result shows that the major and minor sequence influencing on mechanical property are space of mandrel and roller, heat treatment temperature, and feeding comparison. Optimized spinning parameters can ensure product quality, reduce production costs and improve producing efficiency.

Funds：

山西省自然科学基金资助项目 (2012011023-2); 山西省高校高新技术产业化项目 (20120021)

席奇豪（1991-），男，硕士研究生

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