DUPLEX SPREAD BLADE METHOD FOR CUTTING HYPOID GEARS WITH MODIFIED TOOTH SURFACE

In this paper, a duplex spread blade method for cutting hypoid gears w ith modified tooth surface is proposed. The duplex spread blade method provides a rapid and economical manufacturing method because both the ring gear and pinion ape cut by a spread blade method In the proposed method, the nongenerated ring gear is manufactured with cutting edge that is altered from the usual straight line to a circular are with a large radius of curvature and the circular are cutting edge produces a modified tooth surface. The pinion is generated by a cutter with stra ight cutting edges as usual. The main procedure of this method is the determination of the cutter specifications and machine settings. The p roposed method was validated by gear manufacture.