A cutter build and truing machine (22) comprising a mechanism (52, 54) to position cutting blades (98) by moving the blades in either direction in a mounting slot (96) of a cutter head (94). The machine further includes a torque spindle (62) and driver (66) to automatically tighten or loosen clamp bolts (102).

Method for gear cutting a bevel gear workpiece, wherein a preliminary machining phase includes a first machining procedure, wherein a first relative infeed movement moves the gear cutting tool into a first starting position relative to the bevel gear workpiece, the gear cutting tool penetrates the material of the bevel gear workpiece relative to the bevel gear workpiece, proceeding from the first starting position up to a first end position, and the gear cutting tool and bevel gear workpiece carry out a first rolling procedure in a first rolling range, carrying out a further rolling procedure, in order to post-machine at least one of the tooth gaps on the bevel gear workpiece using the rotationally-driven gear cutting tool or another rotationally-driven gear cutting tool, wherein in the scope of this further rolling, a rolling rotation is carried out in a further rolling range, which differs from the first rolling range.

Method for gear cutting a bevel gear workpiece, wherein a preliminary machining phase includes a first machining procedure, wherein a first relative infeed movement moves the gear cutting tool into a first starting position relative to the bevel gear workpiece, the gear cutting tool penetrates the material of the bevel gear workpiece relative to the bevel gear workpiece, proceeding from the first starting position up to a first end position, and the gear cutting tool and bevel gear workpiece carry out a first rolling procedure in a first rolling range, carrying out a further rolling procedure, in order to post-machine at least one of the tooth gaps on the bevel gear workpiece using the rotationally-driven gear cutting tool or another rotationally-driven gear cutting tool, wherein in the scope of this further rolling, a rolling rotation is carried out in a further rolling range, which differs from the first rolling range.

A method for manufacturing a hypoid gear includes: a tooth cutting step of machining a shape of a tooth of the hypoid gear; a surface treatment step of forming a third intermediary gear provided with a hardened layer on a surface of the tooth; a lapping step of machining the third intermediary gear using an abrasive particle having a diameter of 14 ?m or less to form a fourth intermediary gear; and a shot peening step of spraying a particle having a diameter of 160 ?m or less onto the fourth intermediary gear.

A method for manufacturing a hypoid gear includes: a tooth cutting step of machining a shape of a tooth of the hypoid gear; a surface treatment step of forming a third intermediary gear provided with a hardened layer on a surface of the tooth; a lapping step of machining the third intermediary gear using an abrasive particle having a diameter of 14 ?m or less to form a fourth intermediary gear; and a shot peening step of spraying a particle having a diameter of 160 ?m or less onto the fourth intermediary gear.

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 method for machining the tooth flanks of a bevel gear workpiece includes carrying out correction machining of a concave tooth flank and a convex tooth flank of at least one tooth gap by, after machining using a first machine setting, cutting free of the concave tooth flank by the bevel gear workpiece executing a workpiece rotation in a first rotational direction having a predefined first absolute value in relation to a gear-cutting tool and/or cutting free the convex flank by the bevel gear workpiece executing a workpiece rotation in another rotational direction having a predefined second absolute value in relation to the gear-cutting tool, and finish machining the concave tooth flank using a second machine setting, which differs from the first machine setting, and finish machining the convex tooth flank using a third machine setting, which differs from the second machine setting.

A method and cutting tool for producing spiral toothed face couplings whereby a two-part cutter and a two-part machine tool spindle are not needed. The process includes a set-over between the cutting of convex (41) and concave (43) tooth surfaces and the tool (59) comprises inside and outside cutting blades positioned in a single cutter head blade slot (57) and separated from one another by a blade spacing angle (51).

Generating cutting processes for producing bevel gears and employing a single rotary disc cutter (36) wherein a portion of the generating cutting process effectively includes a reduction (38) of the workpiece roll angle (40) during generating thereby reducing or eliminating cutting action on the clearance side (42) of the rotary disc cutter.

Generating cutting processes for producing bevel gears and employing a single rotary disc cutter (36) wherein a portion of the generating cutting process effectively includes a reduction (38) of the workpiece roll angle (40) during generating thereby reducing or eliminating cutting action on the clearance side (42) of the rotary disc cutter.