根据摩托车档位齿轮的产品特点，进行成型工艺分析优化，获得合理的产品精化毛坯，拔模斜度等参数，获取产品的预成型毛坯尺寸。
The rational rough and technological parameter of profile modified gear is gained by analysis and optimizing of forming, and the preliminary shaping size of product is defined.
生产实践表明，多拐曲轴精化毛坯后材料利用率达到了88.3%。
Production practice indicates that the material utilizing ratio reaches 88.3% with the billet optimization technology.
这已成为少切削、无切削、精化毛坯的一种先进工艺。
This is an advanced process of less-cuttings, non-cuttings and fine-blank.
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