Patent ID: 7775749

Claim:
A profile-sharpened or profile-sharpened and additionally form-ground bar cutting blade for milling spiral bevel gears and hypoid gears comprising: a shank with a cutting edge profile formed at one end of the shank by the intersection of at least one rake surface, at least two clearance surfaces and at least one top surface, said cutting edge profile including, for producing a tooth slot, a first cutting edge for a first tooth flank, a second cutting edge for at least a portion of the second tooth flank opposite said first tooth flank, and a top cutting edge for at least a portion of the bottom of the tooth slot, and wherein the first and second cutting edges are adapted to completely cut the first and second tooth flanks respectively, and that the top cutting edge is adapted to completely cut the bottom of the tooth slot, thus enabling the tooth slot to be generated to a final geometry using one bar cutting blade in one milling pass wherein the at least two clearance surfaces can be ground to provide profile-sharpening of the cutting blade.