对成形磨齿法中用圆弧作齿根过渡曲线，提出了确保光滑连接的计算公式，并依据传动条件进行验算的方法。
The paper suggests formula to ensure smooth connection of gear arc with form grinding of transition curve, also a checking method is used according to the condition of driving system.
成形法磨齿的关键因素是成型砂轮的修整。
Gear form grinding has many advantages over generating grinding.
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