The cold forging process of axle shaft gear
The rapid development of automobile industry demands for gears with higher accuracy, excellent mechanical properties and lower cost. Due to the advantages of higher production efficiency, higher material utilization ratios and more excellent mechanical performance compared with the traditional machining technology, precision forging technology has been widely applied to produce gears. Currently, the combined hot-forging-warm-sizing process and composite forging technology of cold sizing after hot/warm forging are adopted to produce axle shaft gears. The article adopts a different forging process for axle shaft gears, which is put forward in this sequence: cold pre-forging, closed-die cold forging and cold sizing. Because of the difficult fulfillment for tooth shape and large forming force during cold forging, reasonable heat treatment process is developed and the effects of different pre-forging dimensional parameters on forming law are researched. Strain distribution, stress distribution and metal flow trend during closed-die cold forging are also analyzed, which has great contribution to the preforging design and the forging quality.
axle shaft gear closed-die cold forging heat treatment FEM forming law
TENG Lai CHEN Guoan MA Xiaofeng ZHENG Yingjun GUO Cheng
Taicang Jiuxin Precision Toolings Co.,Ltd.,Taicang 215400,China School of Mechanical Engineering,Xian Jiaotong University,Xian 710049,China
国际会议
The 12th Asian Symposium on Precision Forging 第12届亚洲精密锻造学术研讨会 ASPF2012
苏州
英文
178-181
2012-10-21（万方平台首次上网日期，不代表论文的发表时间）