我厂在Y7125大平面砂轮磨齿机上磨削模数m=4.25、齿形角α=20°、齿数Z=13的A级非标准插齿刀时,为防止根切,按常规方法将砂轮远移工作轴线。但多次试磨后,根切仍很严重。正规工具厂生产的m=4.25,α=20°,Z=12的标准插齿刀,根切亦很明显。由于插齿刀形要求比较严格,m=4.25的A级摇齿刀齿形误差不得大于8μm,而我们直接磨出的齿形误差在17μm以上,必须设法纠正根切现象。 I plant in the Y7125 large-scale grinding wheel grinding machine modulus m = 4.25, the tooth profile angle α = 20 °, the number of teeth Z = 13 A-level non-standard gear shaper, to prevent root cutting, according to the conventional method of grinding wheel Far away from the working axis. However, after many trials, the problem is still serious. Regular tool factory production m = 4.25, α = 20 °, Z = 12 standard gear shaper, root cut is also very obvious. As the shaper blade shape more stringent requirements, m = 4.25 A-level shaper cutter tooth shape error shall not be greater than 8μm, and we directly mill the tooth profile error of 17μm or more, we must try to correct the root cut phenomenon.