a modified tooth tap 修正齿丝锥
A modified tooth profile is thus developed taking accounts of gear strength, manufacturing and service, etc.
然后从强度、制造和使用等方面考虑，提出一种改进齿形。
The gearing machine tool of the model Y3150E is modified and a new milling head is designed to cut the envelope tooth of the pinion using allelomorph method.
对Y3150E型滚齿机进行改造，设计出一新型的铣削头，利用对偶法加工小齿轮的圆弧包络线齿形；
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