汽车结合齿冷锻工艺分析及数值模拟  

Technological Analysis and Numerical Simulation of Cold Forging for Automobile Conjunction Gear

作　　者：郑晓凯[1] 夏玉峰[1] 杨显红[1] 曾德涛[1] 

机构地区：[1]重庆大学材料科学与工程学院,重庆400044

出　　处：《热加工工艺》2014年第5期161-163,共3页Hot Working Technology

摘　　要：在分析了汽车结合齿成形工艺后,初步确定了模具结构。运用Deform-3D有限元软件对两种成形工艺方案进行了数值模拟。凹模底部做成通孔后的载荷降至初始载荷的50%。锻件成形良好,未出现折叠缺陷。对锻件的主要几何参数进行了优化,发现内孔直径52 mm、圆角半径2 mm、齿形长度8 mm时成形载荷最小。最后,对倒锥齿形的成形过程进行了模拟,并设计出模具结构。The automobile conjunction gear die structure was primarily determined after analyzing its forming technology. Two kinds of forming processes were numerically simulated by using Deform-3D finite element software. The load after making bottom of die into through-hole has decreased to 50% by comparing with the initial load. The forming quality of the forging is good without defects such as folding. The main geometric parameters of the forging were optimized. It is found that： when the bore diameter is 52 mm, the fillet radius is 2 ram, and the gear length is 8mm, the forming load is the least. Finally, the back taper＇s gear outline forming process was simulated. And the die structure was designed.

关 键 词：结合齿 数值模拟 模具结构 冷锻 

分 类 号：TG376[金属学及工艺—金属压力加工]