高能率生産ホブの切れ刃溝数の検討
1992 年 58 巻 548 号 p. 1239-1244
詳細
1992 年 58 巻 548 号 p. 1239-1244
This is to report the selection of number of flutes on multi-thread high speed steel hob for mass -production gears of automobiles etc., under the severe cutting conditions like more than 100 m/min cutting speed and 3-5 mm/rev. hob feed. The damage of hob is caused by many fields, like hob itself, gear blanks, hobbing machines, cutting conditons etc., And various type of damage can be found. The authors are hereupon to concentrate some typical damage (Corner wear, Extraordinary corner wear, Extraordinary side wear, Crater wear, Thermal crack, Chipping of cutting edge) that must be decreased in high speed hobbing with high efficiency.
