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。
The differential gauge forging can be made by general open die or horizontal split precision closed die.
差压计锻件可以采用普通开式模锻成形和可分凹模多向闭塞精密模锻成形。
The technology of precision roll forging by closed die groove of machine driven plough share are researched systematically.
系统研究了机引犁铧闭式型槽精密辊锻技术。
The technology of precision roll forging by closed die groove of machine driven plough share are researched systematically.
系统研究了机引犁铧闭式型槽精密辊锻技术。
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