Transactions of Materials and Heat Treatment

Title：Numerical simulation of hot forging for steering knuckle of non-quenched and tempered steel 38MnSiVS5

Authors： He Wentao Liu Shumei Liu Yahui

Unit： Shanghai University of Engineering Science

KeyWords： steering knuckle non-quenched and tempered steel drop forging numerical simulation billet optimization

ClassificationCode：TG316

year,vol(issue):pagenumber：2015,40(3):7-10

Abstract：

For the TOYOTA IMV pickup, the hot forging process for steering knuckle made of non-quenched and tempered 38MnSiVS5 was numerically simulated by Deform-3D, and the influences of the head diameter design of roll forging blank on forging load and filling were analyzed. The role of resistance wall in hot forging forming process of metal flow and filling was studied. The simulation results show that increasing the head diameter of the roll forging blank can appropriately help the metal fill the cavity, but excessive diameter will lead to a sharp rise of the forming load. In order to promote the forming of the five forks on the knuckle head and avoid a too large diameter on roll forging blank, it is necessary to set resistance walls to force the metal to flow along the reasonable direction. The hot forging experiments show that the filling effect on the steering knuckle is improved obviously after optimizing the process.

Funds：

上海工程技术大学研究生科研创新项目资助(14KY 0514)

何文涛（1990-），男，硕士研究生

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