With unilateral broaching gear broach of wide formula

The utility model discloses a with unilateral broaching gear broach of wide formula, including anterior segment and back end, the anterior segment is generating broaching shaping structure roughing broach tooth section, and the back end is with wide formula shaping structure finishing broach tooth section, and back end sword tooth is unilateral tooth and rises the broaching. The first sword tooth and the anterior segment central symmetry of back end, both breadth of tooth are measure -alike, and the relief angle of the first sword tooth of back end is the negative value. The design has a plurality of transition teeth in the middle of the back end, and the both sides of transition tooth all do not take the tooth to rise and the relief angle. 3-the 5 last teeth of back end are the finishing teeth, and the sword tooth between first sword tooth and transition between the tooth on the back end, transition tooth and the finishing teeth is the main cutting teeth of back end. The utility model discloses can effective