High Speed Precision Dry Hobbing Replacing Conventional Hobbing and Shaving

抄録

High Speed Precision Dry Hobbing, in which cutting speed is from 1000 to 2450 m/min with axial feed 0.3mm/part-rev., achieved gear accuracy equivalent to a shaving process; ISO grade 6 in profile, ISO grade 3 in helix, and surface roughness Ra 0.3 by a single-cut strategy. The stable cutting force and low workpiece temperature by the cutting speed of 2450 m/min were observed in spite of producing red heated cutting chips. By replacing conventional hobbing and shaving with high speed precision dry hobbing, an environmentally friendly manufacturing process can be achieved.