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| Number | Title | Issue Date |
| 7371037 | Rotary cutting tool comprising two cutting portions having opposed cutting directions A rotary cutting tool extending along a longitudinal axis and including a first cutting portion including a plurality of first helical teeth having a helix direction and being designed to work in a first direction of rotation of the tool. The tool also includes a se... | 05/13/2008 |
| 7363692 | Tool and method for fine machining work pieces A tool for fine machining of work pieces involving metal removal is proposed having at least one cutter (13) for preliminary machining with a geometrically defined cutting edge (15) and having at least one cutter (21) for final machining with a ... | 04/29/2008 |
| 7326273 | Multi-element ceramic powder and method for preparation thereof, and sintered compact and method for preparation thereof After an alloy powder including W, Cr, at least one of Ti, Zr, and Hf, and at least one of V, Nb, and Ta is produced, the alloy powder, a powdery carbon material, and a catalyst are heat-treated in the presence of a nitrogen gas. The alloy powder is carbonitrided in... | 02/05/2008 |
| 7103973 | Method, device, and tool for chamfering the front-end edges of the inter-teeth grooves of a gear A method for the manufacture of a toothed gear from a gear blank wherein the gear blank loaded into a machine tool and rotationally driven is machined by a hobbing cutter disposed on a rotationally driven tool shaft and the rough-hobbed gear, once produced, is subse... | 09/12/2006 |
| 6939093 | Chamfer hob and method of use thereof A chamfer hob for and a method of providing a chamfered end and having an identical chamfer angle at both a front face and a back face of a gear including a shaft, a plurality of helical cutting vanes extending radially outwardly from the shaft, such that the radial... | 09/06/2005 |
| 6341923 | Method and cutting insert for threading The present invention relates to a method and a cutting insert for threading. The method aims to produce a thread in a rotary work piece. The threading insert has a polygonal basic shape including at least one cutting corner. The cutting corner has two cu... | 01/29/2002 |
| 5931612 | Hob cutter for machining face gears, and method for manufacturing such a tool A hob cutter (4) for machining face or crown gears comprises a disc-like cutter body having an axis of rotation (6) and a number of hob teeth groups (1, 2, 3, . . . ) which are uniformly distributed over the circumference and which are each bounded at the... | 08/03/1999 |
| 5626443 | Convex-concave hobs A pair of complimentary gear cutting hobs including a convex hob having a plurality of hob teeth, with each hob tooth defining on opposite sides thereof cutting edges having a convex shape. The convex shape is defined by an arc with a center of radius whi... | 05/06/1997 |
| 5374142 | Tip relief cutter blades A cutter blade for use with a face hob type cutter for producing the teeth of spiral bevel and hypoid gear members by a continuous index, face hobbing process comprises a cutter blade shank having a cutting member provided at one end thereof. The cutting ... | 12/20/1994 |
| 5338134 | Gear finishing hob A finishing gear hob whose shape is of a worm includes a working side with cutting edges K, which are in the form of a continuous equally-rising spaced cylindrical helix, and edges K are formed by the intersection of the rake faces A, i.e. the top surface... | 08/16/1994 |
| 5030038 | Hobbing tool for finishing gears A hobbing tool made of cermet composed of 70 to 97 percent by weight of hard phase and a binder phase. The hard phase is made of a composite carbonitride of transition metals including titanium and tungsten, and at least one other element. The binder phas... | 07/09/1991 |
| 4971487 | Method for cutting involute gears A method for simultaneously cutting and chamfering involute gears. The pressure angle 댑 and module M of the teeth of a hob for cutting the teeth are selected with respect to the nominal pressure angle 댐 and nominal modu... | 11/20/1990 |
| 4174914 | Spherical hob for generating gears A spherical hob for generation of a gear comprises a symmetrical frustospherical body in the form of a sphere truncated at two opposed extremities thereof, the body having an axis of symmetry perpendicular to the extremities. A hole passes through the bod... | 11/20/1979 |
| 4139327 | Roughing gear shaper cutter A gear shaper cutter for generating rough shapes has an undulating cutting edge profile to leave alternating heavy and light sections of material to be removed from the rough shape in a finishing operation. Chips are, as a result, more easily broken durin... | 02/13/1979 |
