楔横轧一次楔成形汽车中间轴毛坯可行性分析  

Feasibility Study on Single Wedge Cross Wedge Rolling of Semifinished Product of Automotive Middle Shaft

作　　者：贾震[1] 张康生[1] 胡正寰[1] 

机构地区：[1]北京科技大学,北京100083

出　　处：《中国机械工程》2008年第23期2876-2879,共4页China Mechanical Engineering

基　　金：国家自然科学基金资助项目(50575023;50435010);高等学校博士学科点专项科研基金资助项目(20050008024);国家科技支撑计划资助项目(2006BAF04B03)

摘　　要：针对用楔横轧工艺生产具有大断面收缩率特点的汽车变速箱中间轴毛坯所存在的产品质量问题,利用数值模拟与实轧试验对汽车变速箱中间轴毛坯一次楔成形和二次楔成形进行了分析研究,发现采用一次楔成形方法加工汽车变速箱中间轴毛坯,轧件不易发生弯曲,中间断面收缩率最大处没有发生缩颈现象,心部质量也较二次楔成形好。研究表明采用一次楔成形方法加工汽车变速箱中间轴毛坯是可行的。In view of product quality of cross wedge rolling semifinished product of automotive power-shift box middle shaft which has heavy sectional shrinkage, numerical simulation and experimental method were adopted to analyze single wedge rolling and second wedge rolling method. It is found out that contrast second wedge rolling, single wedge rolling will not make workpiece bend easily, and after rolling the workpiece has no neck shrinkage. Single wedge rolling can also get better internal quality. The study results show that it is feasible to manufacture the product with single wedge rolling method.

关 键 词：楔横轧 一次楔成形 汽车变速箱中间轴 二次楔成形 

分 类 号：TG335.1[金属学及工艺—金属压力加工]