牙嵌齿轮因其结构形状所致无法切削加工，需要热锻成形。

The clutch gears can not be processed by cutting, but by hot forging due to its structure and shape.

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齿轮精密成形是一种齿轮少无切削加工的新工艺，它不仅可使齿轮加工的材料利用率由目前的40%左右提高到70%以上，而且提高齿轮强度20%以上、生产效率40%左右。

The net-shape forging is an advanced technology . It may not only lift material utilization from 40% to 70%, but also lift the gear strength over 20% and production efficiency over 40%.

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摆线齿轮砂带磨削工艺以砂带为切削工具，采用全齿宽同时切入的线成形磨齿方案；

In the paper a new technique for cyclo-gear grinding has been presented. The technique takes abrasive belt as grinding tool.

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