A method for producing gears, wherein in a first step a set of teeth is formed by means of a skiving wheel rotationally driven by a tool spindle in a workpiece gear rotationally driven synchronously thereto by a workpiece spindle, wherein the workpiece spindle and the tool spindle are at an axis intersection angle to each other and the advancement occurs in the tooth-flank extension direction, and wherein in a second step at least some teeth of the set of teeth are machined by means of a tooth-machining tool. A combined tool is used, in the case of which the toothmachining tool and the skiving wheel are fixedly connected to each other. Between the two steps, the combined tool remains connected to the tool spindle and the workpiece gear remains connected to the workpiece spindle. Between the two steps, merely the relative position of the tool spindle in relation to the workpiece spindle and the rotational speed ratio of the two spindles are changed.

The disclosure is directed to a method of manufacturing a power transmission device that can include forging to form a planetary carrier plate integrated with dog teeth, sintering to form a planetary carrier, and joining the planetary carrier plate to the planetary carrier by brazing the planetary carrier plate to the planetary carrier at support parts arranged in a circumferential direction at a peripheral edge part of the planetary carrier so that the planetary carrier plate is fixed to face the planetary carrier on a side of the planetary carrier where a pinion gear is positioned. The method can further include sintering the planetary carrier plate and the planetary carrier, forming a pinion shaft hole for mounting a pinion shaft that constitutes the pinion gear in the planetary carrier plate and the planetary carrier, and performing high-frequency quenching on the dog teeth of the planetary carrier plate.

The disclosure is directed to a method of manufacturing a power transmission device that can include forging to form a planetary carrier plate integrated with dog teeth, sintering to form a planetary carrier, and joining the planetary carrier plate to the planetary carrier by brazing the planetary carrier plate to the planetary carrier at support parts arranged in a circumferential direction at a peripheral edge part of the planetary carrier so that the planetary carrier plate is fixed to face the planetary carrier on a side of the planetary carrier where a pinion gear is positioned. The method can further include sintering the planetary carrier plate and the planetary carrier, forming a pinion shaft hole for mounting a pinion shaft that constitutes the pinion gear in the planetary carrier plate and the planetary carrier, and performing high-frequency quenching on the dog teeth of the planetary carrier plate.

A method for repairing a gear (2) having a number of damaged teeth (4, 4, 4), wherein the method comprises the step of removing material from the gear (2) hereby providing a pocket structure (28, 28, 28, 28), wherein said material includes at least one damaged tooth (4, 4). Said method further comprises the step of providing a segment (12, 12, 12, 12) to be inserted into the pocket structure (28, 28, 28, 28), wherein the segment (12, 12, 12, 12) has a geometry that fits the geometry of the pocket structure (28, 28, 28, 28). The method comprises the step of radially inserting the segment (12, 12, 12, 12) into the pocket structure (28, 28, 28, 28) and attaching radially extending attachment structures (60, 60) through at least a portion (18, 18) of the segment (12, 12, 12, 12) and further into at least a portion (32, 32) of the underlying structure (64) of the gear (2).

A method for repairing a gear (2) having a number of damaged teeth (4, 4, 4), wherein the method comprises the step of removing material from the gear (2) hereby providing a pocket structure (28, 28, 28, 28), wherein said material includes at least one damaged tooth (4, 4). Said method further comprises the step of providing a segment (12, 12, 12, 12) to be inserted into the pocket structure (28, 28, 28, 28), wherein the segment (12, 12, 12, 12) has a geometry that fits the geometry of the pocket structure (28, 28, 28, 28). The method comprises the step of radially inserting the segment (12, 12, 12, 12) into the pocket structure (28, 28, 28, 28) and attaching radially extending attachment structures (60, 60) through at least a portion (18, 18) of the segment (12, 12, 12, 12) and further into at least a portion (32, 32) of the underlying structure (64) of the gear (2).

A method for forming welded assembly. The method includes: providing a gear workpiece; forming a joining section on the gear workpiece that defines a weld interface; applying a material to the outside surface of the gear workpiece including the joining section; cutting a plurality of teeth in the material-covered gear workpiece, each of the plurality of teeth having first and second flanks and a root, wherein the material does not reside on any one of the first flanks, the second flanks and the roots; heat treating the gear workpiece to harden the teeth; and finishing the heat-treated gear workpiece in a finishing process to form a finished ring gear, the finishing process comprising at least one of a turning operation and a lapping operation; wherein the material is disposed over the weld interface on the finished ring gear. A welded assembly is also provided.

A method for forming welded assembly. The method includes: providing a gear workpiece; forming a joining section on the gear workpiece that defines a weld interface; applying a material to the outside surface of the gear workpiece including the joining section; cutting a plurality of teeth in the material-covered gear workpiece, each of the plurality of teeth having first and second flanks and a root, wherein the material does not reside on any one of the first flanks, the second flanks and the roots; heat treating the gear workpiece to harden the teeth; and finishing the heat-treated gear workpiece in a finishing process to form a finished ring gear, the finishing process comprising at least one of a turning operation and a lapping operation; wherein the material is disposed over the weld interface on the finished ring gear. A welded assembly is also provided.

An assembly for acoustically influencing toothed wheels, including at least one first toothed wheel having teeth and one second toothed wheel having teeth, wherein the teeth have flanks, wherein at least one flank of a tooth of the first toothed wheel can be engaged with a flank of a tooth of the second toothed wheel, wherein at least one flank of a tooth of the first toothed wheel forms a contact zone or, in the ideal case, a contact line with an engaging flank of a tooth of a second toothed wheel, wherein the contact zone or the contact line is formed at an angle .sub.Aq, in particular between 5 and 85 or between 95 and 175, in relation to an axis of an undulation, a microangle distribution, and/or a microangle periodicity of the engaging flank of the tooth of the second toothed wheel.

An aluminum component and a method for manufacturing the aluminum component has a forming step and a cutting step. Projections (f) extend in an axial direction and are continuously arranged in a circumferential direction. End portions of the projections (f) are cut along a processing line having a predetermined processing diameter (D) providing splines (S) of predetermined dimensions. Side surfaces (fa) are inclined to be tapered in a direction from a base end to a projecting end. A portion of each side surface (fa) adjacent to the projecting end is an inclined surface (fb) with an inclination angle less than an inclination angle of a portion of the side surface that is adjacent to the base end.

A method for producing gears, wherein in a first step a set of teeth is formed by means of a skiving wheel rotationally driven by a tool spindle in a workpiece gear rotationally driven synchronously thereto by a workpiece spindle, wherein the workpiece spindle and the tool spindle are at an axis intersection angle to each other and the advancement occurs in the tooth-flank extension direction, and wherein in a second step at least some teeth of the set of teeth are machined by means of a tooth-machining tool. A combined tool is used, in the case of which the toothmachining tool and the skiving wheel are fixedly connected to each other. Between the two steps, the combined tool remains connected to the tool spindle and the workpiece gear remains connected to the workpiece spindle. Between the two steps, merely the relative position of the tool spindle in relation to the workpiece spindle and the rotational speed ratio of the two spindles are changed.