Spline broach with broaching stress release area and correction area

The invention relates to the technical field of broaching tools, in particular to a spline broach with a broaching stress release area and a correction area. The spline broach is characterized by comprising a front handle, a neck part, a front guide part, a cutting part, a rear guide part, a stress release area, a correction area and a rear handle part, wherein the diameter of teeth of the stressrelease area is consistent; the diameter of the size of teeth of the stress release area is smaller than 0-0.15mm of the diameter size of the cutter teeth of the calibration teeth. 本发明涉及到拉削刀具技术领域，具体涉及一种带有拉削应力释放区和修正区的花键拉刀，其特征在于，包括前柄、颈部、前导部、切削部、后导部、应力释放区、修正区和后柄部，应力释放区的刀齿直径尺寸一致；其尺寸小于校准齿刀齿直径尺寸0～0.15mm之间。