ST型缓冲器推力锥锻造成形过程仿真与实验  

Simulation and Experiment of the Forging Process of ST Bumper Thrust Cone

作　　者：夏玉峰[1] 王梦寒[1] 周杰[1] 

机构地区：[1]重庆大学机械工程学院,重庆400044

出　　处：《锻压装备与制造技术》2007年第5期58-60,共3页China Metalforming Equipment & Manufacturing Technology

基　　金：重庆市"十一五"科技攻关重大项目资助(CSTC;2005AA3012-4)

摘　　要：分析了推力锥的锻造工艺性,提出了相应的锻造工艺方案,采用金属塑性成形仿真软件DE-FORM-3D模拟了推力锥的锻造成形过程,利用仿真优化结果进行了生产试制,实现了推力锥锻造工艺的开发。通过论文的研究,得到以下结论:(1)生产试制结果表明,论文提出的锯切下料、空气锤上镦粗和预锻、摩擦压力机上终锻的锻造工艺方案可行,锻件无需机械加工;(2)锻件产品检验结果表明,采用论文提出的锻造工艺生产推力锥,其锻件壁厚差在1.5mm以内的达100%、摩擦面的平面度低于0.7mm;(3)对于推力锥类薄壁、深腔锻件,控制其壁厚差的关键技术为精备料、准定位、快成形。The characteristics of forging process for thrust cone have been analyzed and the forging process schemes have been proposed.Metal plastic forming simulation software DEFORM-3D has been adopted for the simulation forging process,by putting the simulation result in practice,finally the forging process has been developed. The conclusion is as follows： （ 1 ） the process put forward in the paper has been feasible i.e., saw cutting, upset and pre-forge on pneumatic hammer,finish-forge on friction press,and the machining operation has not been needed after forging; （2）inspection result shows that by adopting the process,wall thickness difference value of the forging piece is less than 1.5mm;its flatness of friction surfaces is less than 0.Tmm; （3）the key techniques,for controlling wall thickness difference of parts like as Thrust cone with thin wall and deep cavity features, are accurate stock preparation, precise fix position and quick formation.

关 键 词：机械制造 锻造工艺 推力锥 数值模拟 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]