Why is the front rake hob good for chip removal?
The last said will form a positive front angle, a negative front angle, that is, the two side cutting edges. A closer look at the last post, I found no hob for the main cutting edge discussed. The reason is to answer the question of positive and negative angles. The main rake angle is the front edge of the main cutting edge formed by the intersection of hob diameter and chip groove.
The rake angle of the front rake is lower than the front angle of the hob, but the inherent error is larger than the zero front angle, so the rough rolling force with low precision is often used
In my understanding, the front corner is the angle formed by the front face and the vertical direction. Thank you for your communication
