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通常插齿刀用钝后放在工具磨床上重磨它的前刀面(要求光洁度 7)。这种前刀面经磨削的插齿刀用来插削材料为45号钢、调质硬度HRC22～25的齿轮时,齿面光洁度可达 6左右;但用来插削为40C1钢、调质硬度HRC22～25的齿轮时,不仅光洁度降低至 4左右,而且会在齿面间出现鱼鳞状斑纹。我厂将重磨后的插齿刀再用氧化铬研磨剂对前刀面进行研磨,再插削调质硬度HRC22～25的40Cr钢齿轮时,齿面光洁度可达 6,且齿面间的鱼鳞斑纹全部消失;同时插齿刀的使用寿命也较研磨前提高20%左右。我厂使用的插齿刀前刀面研磨装置如图所示。研
The shaper cutter is usually reground with a blunt back on a tool grinder to regain its rake face (required finish 7). This rake face sharpening gear shaper used to insert the material for the 45 steel, quenched and tempered hardness HRC22 ~ 25 gear, the tooth surface finish of up to about 6; but used for insertion into the 40C1 steel, transfer Hardness HRC22 ~ 25 gear, not only to reduce the finish to about 4, but also between the tooth surface scaly markings. I plant will be re-sharpening gear sharpener then chrome oxide abrasive on the rake surface grinding, and then cut the quenched and tempered hardness 40Cr HRC22 ~ 25 steel gear, the tooth surface finish up to 6, and between the tooth surface Fish scale markings all disappear; the same gear shaper life than grinding before about 20%. Gear sharpening machine used in our factory is shown in the figure. research