The problems of open-die forging for spiral bevel gears are described. A new process and new structure principle of die for closed precision die forging of spiral bevel gears are presented.
针对螺旋伞齿轮开式模锻存在的问题，提出了螺旋伞齿轮闭式精锻新工艺及其模具结构。
2
By virtue of modern metallograph analyse technology, the size of grain, hardness and residual stress of bevel gear by closed-die cold forging is studied.
借助现代冶金分析技术对闭塞冷锻行星齿轮的晶粒尺寸、硬度变化和残余应力分布规律进行了研究。
3
In this paper, the metal flow route during closed die extrusion for spiral bevel driving gear of automotive final drive is analyzed and the profile of preformed blank has been designed.