A method for cutting teeth into working gears using a tool, the tool main part of which has a plurality of cutting teeth which are arranged about a rotational axis and which protrude radially from the tool main part, the cutting teeth forming an end face, two tooth flanks which point away from each other, and cutting edges. The cutting edges are formed from the tooth flank edges adjoining the end face. In a first method step, tooth gaps which form tooth flanks are produced in the working gear by means of the cutting edges using a machining process in a first position of the tool relative to the working gear, and in a second method step, the working gear tooth flanks produced by the cutting edges are fine-machined by an abrasive tool surface.

A method for cutting teeth into working gears using a tool, the tool main part of which has a plurality of cutting teeth which are arranged about a rotational axis and which protrude radially from the tool main part, the cutting teeth forming an end face, two tooth flanks which point away from each other, and cutting edges. The cutting edges are formed from the tooth flank edges adjoining the end face. In a first method step, tooth gaps which form tooth flanks are produced in the working gear by means of the cutting edges using a machining process in a first position of the tool relative to the working gear, and in a second method step, the working gear tooth flanks produced by the cutting edges are fine-machined by an abrasive tool surface.

A helical sector gear having a body and a gear segment having a plurality of helical teeth. The gear segment has a toothed sector, on which all of the helical teeth are formed, and spacing segments on the opposite circumferential ends of the toothed sector. Each of the spacing segments has a circumferential surface, which is longer than a pitch of the helical teeth, and a radial surface that is formed in a helical manner that conforms to the helix angle of helical teeth. A die set for forming the helical sector gear and a related method are also provided.

A helical sector gear having a body and a gear segment having a plurality of helical teeth. The gear segment has a toothed sector, on which all of the helical teeth are formed, and spacing segments on the opposite circumferential ends of the toothed sector. Each of the spacing segments has a circumferential surface, which is longer than a pitch of the helical teeth, and a radial surface that is formed in a helical manner that conforms to the helix angle of helical teeth. A die set for forming the helical sector gear and a related method are also provided.

A gear cutting tool wherein each cutting blade group includes two differently positioned but identical cutting blades (41, 40) such as an one outside and one inside blade. The inventive blade arrangement only requires a single type of blade (30) in order to simultaneously cut the convex and the concave tooth flanks of a gear as well as the root fillet and root bottom portions of tooth slots. The cutter system allows radial adjustment of the outside cutting blade and the inside cutting blade independently of one another. Additionally, inside and outside cutting blades may be exchanged with one another.

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.

A gear machining apparatus includes a rough working tool having a plurality of replaceable tool blades attached to a tool main body, such that the tool blades are arranged in a circumferential direction of the tool main body and blade tips of the tool blades are oriented outward in a radial direction of the tool main body, a finish working tool having a plurality of tool blades provided to a tool main body in a similar manner to the rough working tool, and machining controllers control to perform rough and finish machinings on the workpiece, such that the working tools are rotated on center lines in axial directions of the working tools, the workpiece is rotated on a center line in axial direction of the workpiece, and the working tools are relatively moved to the workpiece along the center line in the axial direction of the workpiece.

A helical sector gear having a body and a gear segment having a plurality of helical teeth. The gear segment has a toothed sector, on which all of the helical teeth are formed, and spacing segments on the opposite circumferential ends of the toothed sector. Each of the spacing segments has a circumferential surface, which is longer than a pitch of the helical teeth, and a radial surface that is formed in a helical manner that conforms to the helix angle of helical teeth. A die set for forming the helical sector gear and a related method are also provided.

A helical sector gear having a body and a gear segment having a plurality of helical teeth. The gear segment has a toothed sector, on which all of the helical teeth are formed, and spacing segments on the opposite circumferential ends of the toothed sector. Each of the spacing segments has a circumferential surface, which is longer than a pitch of the helical teeth, and a radial surface that is formed in a helical manner that conforms to the helix angle of helical teeth. A die set for forming the helical sector gear and a related method are also provided.

A milling tool for cyclo-palloid toothing has a holder and multiple first cutting plates. and includes a clamping portion for clamping the holder and a holder head, which projects radially compared to the clamping portion in the front end and on which there are multiple first cutting plate receptacles. The first cutting plates are fastened in the first cutting plate receptacles, and project radially outward, wherein the radially outermost points of the first cutting plates lie in each case on a common circle, the center point of which lies on the center axis of the holder. The first cutting plates are arranged at an angle to an orthogonal plane which is orthogonal to the holder center axis. Multiple first partly conical surfaces are provided on a top side of the holder head. Multiple second partly conical surfaces are provided on an end side of the holder head.