Transactions of Materials and Heat Treatment

Title：Optimization on warm extrusion process parameters for engine connecting rod bushing based on finite element

Authors： Yang Hualong Fan Wenxin Cao Cuncun Cao Wensheng Hu Xinchao She Yong

Unit： North University of China

KeyWords： engine connecting rod connecting rod bushing warm extrusion tin bronze orthogonal optimization finite element

ClassificationCode：TG376

year,vol(issue):pagenumber：2017,42(2):172-177

Abstract：

For tin bronze connecting road bushing, the numerical simulation for the forming process was carried out by Deform-3D software. By means of single factor test method and orthogonal test method, the warm extrusion process of engine connecting rod bushing was simulated and analyzed. Then, the influence regulations of friction factor, warm extrusion speed and warm extrusion temperature on the extrusion force and damage value were obtained. Furthermore, two groups of optimum process parameters of warm extrusion were obtained by range analysis. Comparing with the influence regulations of two groups of optimized solution on the extrusion force and damage value, a set of optimal solution was obtained with friction coefficient of 0.1, warm extrusion speed of 5 mm·s-1 and warm extrusion temperature of 700 ℃. According to the warm extrusion experiment of connecting rod bushing, the surface quality of formed parts manufactured by the optimized process parameters was verified.

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）

杨华龙（1989-），男，硕士研究生樊文欣（1964-），男，博士，教授

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