重卡转向节多工步卧式锻造成形过程的数值模拟  

Simulation of horizontal multistep die forging for heavy truck steering knuckle

作　　者：蒋鹏[1] 韦韡[1] 付殿禹[1] 余光中[1] 曹飞[1] 

机构地区：[1]北京机电研究所,北京100083

出　　处：《锻压技术》2010年第2期22-25,共4页Forging & Stamping Technology

摘　　要：介绍一种在新型模锻摩擦压力机上采用5工步多模膛成形重卡转向节的卧式锻造工艺。分析了转向节成形的工艺特点,确定了工艺方案——压扁→旋转90°再次压扁→局部镦粗→预锻→终锻。利用有限元软件Deform-3D对成形过程进行模拟,对模拟得到的速度场、应力场和载荷等信息进行分析,为模具设计优化和设备选型提供了依据。通过模拟结果,对容易出现折叠等缺陷的部位进行了预测。A process that making steering knuckle horizontally with 5 steps in one multicavity die on a new friction press for die forging was introduced.After analyzing the formability character of the technology,the process（upsetting→local upsetting→gathering stock→preforging→finish-forging）was defined.The forging process was simulated by Deform-3D.Velocity field,strain-stress distribution and load curve were obtained,which provided basis for die design and optimization as well as equipment selection.Besides,the potential defect,such as fold was also predicted in simulation.

关 键 词：转向节 锻造 数值模拟 

分 类 号：TG316[金属学及工艺—金属压力加工]