汽车全空心半轴精密旋锻工艺的数值模拟  

Numerical Simulation of Precise Rotary Swaging Process for Automobile Full Hollow Smei-Shaft

作　　者：周志明[1,2,3] 李林峰 刘兵 陈波[1] 黄伟九 汪红川[4] 罗荣 谷长巧 黄涛[1] 叶广朋 

机构地区：[1]重庆理工大学材料科学与工程学院,重庆400054 [2]重庆市模具技术重点实验室,重庆400054 [3]江苏祥和电子科技有限公司,江苏睢宁221214 [4]重庆市建设工业集团有限责任公司,重庆400054

出　　处：《热加工工艺》2017年第23期111-114,共4页Hot Working Technology

基　　金：重庆市科委攻关项目(2014yykf B60004);重庆市巴南区科研基金项目(2015TJ08)

摘　　要：采用Forge2011软件数值模拟了25Cr Mo4钢汽车全空心半轴的精密旋锻工艺。首先,对汽车空心半轴精密旋锻成形第一工序典型段中的锤头载荷、等效应变场、应力场等各工艺参数进行了研究。然后,根据数值模拟结果确定了正交试验因素和水平,得到了较优参数组:单次坯料转角12°,锤头径向进给量0.5 mm,进锤速度7.5 mm/s。最后,基于正交试验的优化结果对全空心半轴旋锻加工进行数值模拟和产品试制,验证了优化工艺参数的可靠性。The precision rotary swaging process of 25CrMo4 steel for automobile hollow semi-shaft was numerically simulated by using the Forge 2011 software. At first, the different precision rotary swaging parameters for typical section of automotive hollow semi-shaft in the first process, such as hammer load, equivalent strain field, stress field and other parameters were studied. Then, according to the results of numerical simulation, the factors and levels of the orthogonal test were determined, and the optimal parameters were obtained, that was single billet rotation angle of 12°, hammerhead radial feed of 0.5 mm, and hammer feed-in speed of 7.5 mm/s. Finally, based on the optimization results of the orthogonal test, the numerical simulation and the trial production of the full hollow smei-shafl rotary swaging process were carried out, and the reliability of the optimized process parameters was verified.

关 键 词：旋锻 数值模拟 空心半轴 参数优化 

分 类 号：TG301[金属学及工艺—金属压力加工]