A method for providing teeth on working gears by cutting, wherein the working gear and the cutting tool are driven in rotation at a predetermined speed ratio along axes oriented at an intersection angle. The flanks of the cutting teeth form edges having flank cutting sections arranged on the edges of a gap between two adjacent teeth and extend along a first contour line, and which as a result of an advance in the direction of the working gear engage in a cutting manner to produce teeth having a flank contour predetermined by the shape of the cutting edge. Each of the flank cutting sections is adjoined by a tip cutting section which extends along a second contour line in the region of the base of the cutting tooth gap, wherein the second contour line is curved such that at least partially rounded tooth tips are produced on the teeth.

A gear forming tool includes an outer sleeve having an outer sleeve aperture and an inner sleeve having an inner sleeve aperture in fluid communication with the outer sleeve aperture, a tool holder disposed within the outer sleeve, and a 3D printed gear cutting tool with a plurality of tool cutting edges and a plurality of capillaries attached to the tool holder. The tool holder has a plurality of fluid channels configured to be in fluid communication with the inner sleeve aperture and the plurality of capillaries of the 3D printed gear cutting tool such that cutting fluid flows through the outer sleeve, the inner sleeve, the plurality of fluid channels of the tool holder, and the plurality of capillaries to the plurality of tool cutting edges.

Methods for the fabrication of metal strain wave gear flexsplines using a specialized metal additive manufacturing technique are provided. The method allows the entire flexspline to be metal printed, including all the components: the output surface with mating features, the thin wall of the cup, and the teeth integral to the flexspline. The flexspline may be used directly upon removal from the building tray.

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.

A shaving processing method and apparatus for a gear are provided which reduce a load at the time of processing a tooth surface, thereby reducing a transmission error of the gear. Embodiments include a method for finishing the tooth surface of the gear in a state where the gear and a shaving cutter are engaged with each other and the shaving cutter is rotated. The gear has a pair of end surfaces facing each other in the tooth width direction. A first shaving step of processing the tooth surface is performed so that a processing region gradually expands from one end surface of the pair of end surfaces toward the other end surface, and a second shaving step of processing the tooth surface is performed so that a processing region gradually expands from the other end surface of the pair of end surfaces toward the one end surface.

The invention relates to a method for generating a workpiece (3) having a second tooth system (2) incorporated into a first tooth system (1) having a specified tooth system geometry, wherein a first generative processing engagement, intersecting the second tooth system in the kinematics of the generating skiving, is made on the workpiece, which is in particular oversized in relation to the specified tooth system geometry, in particular on a transition from the first to the second tooth system, and then a second processing engagement, matching the specified tooth system geometry, in the kinematics of the generating skiving is carried out on the transition and a remaining oversize is in particular removed while doing so. The invention further relates to tools and to tooth-cutting machines suitable therefor.

The invention relates to a method for producing or machining a toothing (2) on a workpiece (3), in which method the workpiece, which is rotationally driven about its axis of rotation (C), is brought into rolling machining engagement with tool toothing (5) rotating about an axis of rotation (C2) which is, in particular, at a non-null crossed-axes angle to the axis of rotation of the workpiece, wherein the machining operation is automatically monitored, using sensors to record same automatically, already at the machine operation stage for a recurring irregularity originating from tool wear (52), in particular higher wear of at least one tool tooth (51) compared to other tool teeth.

A method for producing a toothed workpiece wheel, the tooth root of which adjoins an end face of the workpiece wheel with a chamfer extending into the tooth flanks being formed, wherein the toothing of the workpiece wheel is created by skiving with a gear-cutting tool which has a first number of cutting teeth that each form cutting edges and the rotation axis of which is at a first crossed-axes angle to the axis of rotation of the workpiece wheel, with an infeed in a first infeed direction parallel to the direction of extension of the tooth flanks to be produced and of the tooth root. The chamfer is created by skiving with a chamfering tool which has a second number of cutting teeth that each form cutting edges and the rotation axis of which is at a second crossed-axes angle to the axis of the workpiece wheel, with an infeed in a second infeed direction parallel to the direction of extension of the chamfer to be produced in the tooth root. Also disclosed is an associated tool set.

The invention relates to a method for machining a toothing (2) having an axis of rotation (C), in which a machining tool (4), which is rotationally driven about its axis of rotation (B), removes material from the toothing while executing a relative motion between the machining tool and toothing to generate a flank geometry of the toothing, which has been predefined over the full width of the toothing, in a machining operation, wherein the predefined flank geometry matches a motion control that defines a motion path of the tool center with respect to the toothing axis of rotation, said motion control having a defined, non-vanishing axial advancement with a defined advancing motion between machining tool and toothing, wherein in a first machining process, the relative motion is only executed for generating a part, more particularly a significant part (5), of the flank geometry according to this motion control, while a further part, more particularly the remaining part (6), of the flank geometry is generated in a second machining process, in which the distance between the tool center and the toothing axis of rotation with respect to the fixed motion path changes in a manner wherein the tool center moves away from the toothing, and in which the change to the machining operation caused thereby is counteracted by an additionally executed change in motion of the relative motion with respect to the motion control of the first machining process.

The invention relates to a method for machining toothing systems, in which, for a series of workpieces with an identical target geometry, a toothing system is produced or machined on a respective workpiece in a first machining operation and, in a second machining operation, with a machining tool, additional tooth shaping of the toothing system resulting from the first machining - in particular, chamfering of a tooth end edge of this toothing system - is carried out in a relative positioning with respect thereto, wherein a controller of the second machining operation automatically detects, at least in part, a change in a workpiece property, which is in particular independent of the first machining operation, and/or in a setting of the first machining operation - in particular, with respect to a respectively predetermined reference - and carries out the relative positioning as a function of the detected change.