B23F21/103

Hob peeling tool and method for hard-fine machining of pre-toothed workpieces

A tool for hob peeling rotating workpieces having pre-machined teeth comprises a gear-wheel shaped main body and tooth-shaped cutting inserts (1.2) which at the end face in the region of the tip circle are disposed on the main body. Each cutting insert comprises at least one cutting tooth. The cutting tooth forms a cutting edge (6) which runs at least along one of the flanks of the cutting tooth, and a cutting face and a clearance face. The cutting face along the cutting edge is provided with a cutting face chamfer (7) which in relation to the cutting face (5.5) runs so as to be inclined by a chamfer angle. The chamfer angle varies along the cutting edge. Moreover, the cutting edge is rounded by a radius.

Multi-component gear cutting tool
10780512 · 2020-09-22 · ·

A multi-component gear cutting tool that is rotatable about an axis of rotation. The gear cutting tool includes a tool body extending axially lengthwise between a first end and a second end with the tool body being made of a first material. The gear cutting tool further includes a cutting tip attached to the tool body at one of the first end and the second end. The cutting tip includes an outer axial-facing cutting end with the cutting end having a plurality of cutting faces. The cutting tip is made of a second material different than the first material and the cutting tip is attached to the tool body via brazing.

MULTI-COMPONENT GEAR CUTTING TOOL
20200061727 · 2020-02-27 ·

A multi-component gear cutting tool that is rotatable about an axis of rotation. The gear cutting tool comprises a tool body extending axially lengthwise between a first end and a second end with the tool body comprising a first material. The gear cutting tool further comprises a cutting tip attached to the tool body at one of the first end and the second end. The cutting tip comprises an outer axial-facing cutting end with the cutting end having a plurality of cutting faces. The cutting tip comprises a second material different than the first material and the cutting tip is attached to the tool body via brazing.

SKIVING CUTTER

A skiving cutter includes a cutting edge portion in which a tooth trace extends in a direction inclined with respect to an axis of a base. The cutting edge portion is segmented into a plurality of segmented cutting edges by cutting edge grooves extending in a direction intersecting the tooth trace. A helix angle is different according to positions of the plurality of segmented cutting edges.

Skiving cutter

A skiving cutter includes a cutting edge portion in which a tooth trace extends in a direction inclined with respect to an axis of a base. The cutting edge portion is segmented into a plurality of segmented cutting edges by cutting edge grooves extending in a direction intersecting the tooth trace. One of the plurality of segmented cutting edges forms a reference cutting edge. Among the plurality of segmented cutting edges constituting the cutting edge portion, the reference cutting edge has the largest axis-cutting edge distance which is a distance from the axis to the outer circumferential cutting edge of the segmented cutting edge, and the remaining one or more segmented cutting edges have gradually smaller axis-cutting edge distances as a distance from the reference cutting edge to each of the remaining cutting edges increases. A helix angle is different according to positions of the plurality of segmented cutting edges.

HOB PEELING TOOL AND METHOD FOR HARD-FINE MACHINING OF PRE-TOOTHED WORKPIECES
20190255635 · 2019-08-22 · ·

A tool for hob peeling rotating workpieces having pre-machined teeth comprises a gear-wheel shaped main body and tooth-shaped cutting inserts (1.2) which at the end face in the region of the tip circle are disposed on the main body. Each cutting insert comprises at least one cutting tooth. The cutting tooth forms a cutting edge (6) which runs at least along one of the flanks of the cutting tooth, and a cutting face and a clearance face. The cutting face along the cutting edge is provided with a cutting face chamfer (7) which in relation to the cutting face (5.5) runs so as to be inclined by a chamfer angle. The chamfer angle varies along the cutting edge. Moreover, the cutting edge is rounded by a radius.

POWER SKIVING PRESSURE ANGLE CORRECTION WITHOUT TOOL GEOMETRY CHANGE
20190201992 · 2019-07-04 ·

Cutting blade pressure angle changes or corrections in power skiving cutters (20) can be realized without the need tor a tool geometry change. An axial shift (26) of the blade reference point (24) will shift the existing involute on the blade profiles (22, 23) into a different radial location. An accompanying shift (AR) of the reference involute profile (30) by approximately the same amount and in the same direction will re-establish the relationship between work gear and cutter. The resulting work gear geometry has the same radial location of the slots, with the same slot width and the same tooth thickness but with a changed pressure angle.

SKIVING CUTTER

A skiving cutter includes a cutting edge portion in which a tooth trace extends in a direction inclined with respect to an axis of a base. The cutting edge portion is segmented into a plurality of segmented cutting edges by cutting edge grooves extending in a direction intersecting the tooth trace. One of the plurality of segmented cutting edges forms a reference cutting edge. Among the plurality of segmented cutting edges constituting the cutting edge portion, the reference cutting edge has the largest axis-cutting edge distance which is a distance from the axis to the outer circumferential cutting edge of the segmented cutting edge, and the remaining one or more segmented cutting edges have gradually smaller axis-cutting edge distances as a distance from the reference cutting edge to each of the remaining cutting edges increases. A helix angle is different according to positions of the plurality of segmented cutting edges.