| 摘要 |
FIELD: mechanics. ^ SUBSTANCE: proposed cutting plate has the first and second facing end face surfaces and peripheral side surface arranged there between the first and second peripheral edges formed on the intersection of the first and second end face surfaces, respectively, with the peripheral side surface. Note that at least part of the first peripheral edge forms the main cutting edge. Note also that at least one slot arranged between and crossing the first and second end face surfaces over the first and second additional edges forms an additional cutting edge. Mind that the first peripheral edge is mainly concave on the first and second side views of the cutting edge. The proposed hob comprises a circular body with multiple segments uniformly arranged along the inner edges. Seven cutting plates are arranged and fixed on every aforesaid segment. ^ EFFECT: machining of complete section of crankshaft webs and journals. ^ 7 cl, 14 dwg |
