Transactions of Materials and Heat Treatment

Title：Parameters optimal design of power spinning process for bushing based on response surface method

Authors： Shu Chenglong Fan Wenxin Yuan Xia Zhang Junyi

Unit： North University of China

KeyWords： connecting rod bushing power spinning response surface design method

ClassificationCode：

year,vol(issue):pagenumber：2015,40(4):60-64

Abstract：

The connecting rod bushing is mainly formed by power spinning process, which includes many complex process parameters. Its mechanical properties are affected by coupling process parameters. In order to study the influence of process parameters on the mechanical properties of connecting rod bushing, the power spinning forming process of connecting rod bushing was simulated by Design-Expert 8.0 software, and the main process parameters of thinning rate, feed ratio and heat treatment temperature were optimized based on the response surface design method. The tensile strength of connecting rod bushing formed by the power spinning was regarded as the optimization objective response, and the quadratic regression was regarded as the mathematical model of the software. Test data and software analysis show that the mechanical properties of connecting rod bushing can meet the requirements of the drawings when its tensile strength is under 605-645 MPa. The optimal combination of parameters in power spinning connecting rod bushing is as follows:thinning rate of 30%, feed ratio 0.3 mm·r-1 and heat treatment temperature of 275 ℃.

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)

舒成龙（1982-），男，硕士研究生

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