What is the relative motion between the tool and the blank?
When the standard gear is processed by a rack cutter, the dividing line of the cutter (the line whose tooth thickness is equal to the width of the tooth) is tangent to the dividing circle of the wheel gear and makes a pure rolling.The relative position is determined by the gear shift coefficient; the rack cutter is moved once again when the position is determined. The wheel can rotate at constant speed, the tooth pitch, the modulus and the pressure angle of the tooth number.
The linear speed of the gear cutter and the gear blank.
Hobbing? Gear manufacturers know
1 processing of standard gear: standard rack cutter indexing line and the blank of the dividing circle tangent and do pure rolling2 (processing) into the gear: standard rack cutter line deviation from its pitch line a bit XM, the line and the blank of the dividing circle tangent and do pure rolling.Problems can contact, hope to adopt.