本文叙述直齿齿轮坯闭式精密模锻工艺的主要技术特点、工艺参数、设备选择以及模具设计等问题,并对其金属流动情况进行了实验分析,经生产考核证明,采用本工艺锻造的齿轮坯尺寸精度高,表面质量好,生产稳定。 This paper describes the main technical characteristics, process parameters, equipment selection and mold design of closed precision die forging process of straight tooth gear blanks. The metal flow conditions are analyzed experimentally. It is proved by the production examination that the gear forged by this process Billet size accuracy, surface quality, production and stability.