Transactions of Materials and Heat Treatment

Title：Simulation and optimization on upsetting process for heavy vehicle splined hub

Authors： Liu Qiyong Qian Changyou Guo Yanjun An Weihao

Unit： Xuchang Zhongxing Forging Co. Ltd. Zhengzhou University

KeyWords： splined hub upsetting die plateinsert separable die parting sunface DEFORM-3D

ClassificationCode：TG315.2

year,vol(issue):pagenumber：2017,42(9):20-24

Abstract：

For the longitudinal flash, burr and other issues exited during the closed upsetting process for mass production of heavy vehicle splined hub, the structures of embedded die with integral and separable die were put forward respectively by analyzing the upsetting process. Based on open die upsetting of separable die, two forming schemes on the position of the parting surface in the front face and the middle of the maximum contour of splined hub were developed respectively, and the forming scheme was compared with integral die. Therefore, the forging forming process was analyzed by software DEFORM-3D, and superiority-inferiority of two schemes were analyzed by comparing the values of damage, stress and strain and so on. The results show that the storage problem of the lateral flash of splined hub is solved effectively by the use of a separable die, and "galling thorn" problem after trimming can be effectively solved by designing parting surface in the middle. Finally, the feasibility of the separable die structure with a parting surface in the middle is verified in the practical production.

Funds：

许昌市重大科技专项（20160111002）

作者简介：刘其勇（1980-），男，学士，工程师 E-mail：187321684@qq.com 通讯作者：安伟浩（1989-），男，学士 E-mail：anweihao@126.com

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