Transactions of Materials and Heat Treatment

Title：Simulation analysis on damage of connecting rod bushing in warm extrusion based on finite element

Authors： Fan Wenxin Cao Cuncun Yang Hualong Ye Wenbo

Unit： North University of China

KeyWords： connecting rod bushing warm extrusion damage value spinning

ClassificationCode：TG376

year,vol(issue):pagenumber：2016,41(8):143-147

Abstract：

In the production of power spinning of the connecting rod bushing, it is necessary to preprocess the billet by warm extrusion, but the damage of the material directly affects the spinning effect. The warm extrusion of the connecting rod bushing was simulated by Deform, and five nodes were selected randomly. Furthermore, the influences of friction coefficient, extrusion speed and preheating temperature of billet on the damage values of the selected nodes were obtained, and the change of the damage parameters after warm extrusion was conducted that the billet damage increases with the increase of the friction coefficient, increases with the increase of extrusion speed, while decreases with the rising of preheating temperature of billet. Furthermore, the orthogonal simulation test was established, and it is shown that the influence of the friction coefficient on the billet damage is the most significant after the variance analysis on the test results. When the friction coefficient is 0.1, the extrusion speed is 1 mm·s-1, and the preheating temperature is 650 ℃, and the maximum damage value of the billet is optimal, that is, the damage is the minimum.

Funds：

山西省自然科学基金资助项目(2012011023-2)

樊文欣（1964-），男，博士，教授

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