Abstract: A cutting tool for metal is described that comprises a main body produced from metal, wherein the main body is reinforced with a reinforcing material. The cutting tool can be a milling tool, a turning tool, a drilling tool, a thread cutting tool, a broaching tool, a turn broaching tool, a reaming tool, a deburring tool, a combination tool and/or a multifunctional tool.

Abstract: In the case of an impactor (1) with an impact plate (7) and a classifying nozzle (2) directed at this impact plate (7), in the case of which the impact plate (7) is formed as an electronically readable resonantly oscillating, mass-sensitive element (7, 33), it is proposed to move the oscillating crystal (7, 33) held in an impact plate holder (8) in relation to the static classifying nozzle (2) by a motor (12) during the operation of the impactor (1).

Abstract: The invention relates to a tool for turning/turn broaching or external milling of work pieces rotating about longitudinal axes during machining, comprising a disc-shaped tool support having cassettes (20) disposed peripherally thereon, each of said cassettes containing a cutting insert (12, 13, 14), said cassettes being fastenable to a circular, partially circular or segmented removable support (11) that is fastened either directly to a machine spindle or indirectly to a machine spindle by way of an adapter.

Abstract: In the case of an impactor (1) with an impact plate (7) and a classifying nozzle (2) directed at this impact plate (7), in the case of which the impact plate (7) is formed as an electronically readable resonantly oscillating, mass-sensitive element (7, 33), it is proposed to move the oscillating crystal (7, 33) held in an impact plate holder (8) in relation to the static classifying nozzle (2) by a motor (12) during the operation of the impactor (1).

Abstract: The invention relates to a method and a device for the precision machining of crankshafts or camshafts to final size tolerances RZ<10 ?m, preferably ?5 ?m and concentricity tolerances?30 ?M, preferably 6 ?m. The crankshafts or camshafts has been machined by a cutting operation and at least partly subjected to hardening. According to the invention, after an initial cutting operation and subsequent hardening to 45 to 60 HRC, preferably 50 to 53 HRC, a final cutting operation is carried out using cutting inserts fitted with CBN or PCD inlets. The device used for this purpose has cutting inserts which are fitted with CBN or PCD inlets, wherein cutting inserts clamped in place laterally, radially and tangentially follow each other alternately.

Abstract: The invention relates to a cutting insert (10) with a base, having a supporting surface, a covering surface, at a distance therefrom and side faces (101, 102), connecting said surfaces, whereby two or several adjacent surfaces form cutting edges (103, 104, 105). According to said invention, the supporting surface is connected in a non-detachable manner to a supporting surface of a cutting plate (11), the geometry of which is different from the cutting insert (10) and suitable for another metal cutting operation.

Abstract: The invention relates to a cutting insert for clamping into a disc-type or strip-shaped tool body, in particular, for milling crankshafts, whereby the insert is substantially cuboid-shaped and has two front faces, two side faces, serving as cutting faces as well as an upper and a lower side face, whereby a convex face is arranged between the front faces and the upper and lower side faces, so that the upper and lower side faces and the convex face form cutting edges each with a side face. According to invention, the cutting insert has an inwardly-tapered face adjoining the convex face, which allows the cutting edge to protrude and tapered chamfers are provided between the inwardly-tapered faces of the front face on both sides of a planar supporting surface to the outer edge.

Abstract: The invention relates to a method and a device for the precision machining of crankshafts or camshafts to final size tolerances Rz<10 ?m, preferably ?5 ?m and concentricity tolerances ?30 ?M, preferably 6 ?m. The crankshafts or camshafts has been machined by a cutting operation and at least partly subjected to hardening. According to the invention, after an initial cutting operation and subsequent hardening to 45 to 60 HRC, preferably 50 to 53 HRC, a final cutting operation is carried out using cutting inserts fitted with CBN or PCD inlets. The device used for this purpose has cutting inserts which are fitted with CBN or PCD inlets, wherein cutting inserts clamped in place laterally, radially and tangentially follow each other alternately.

Abstract: The invention relates to a tool for turning/turn broaching or external milling of work pieces rotating about longitudinal axes during machining, comprising a disc-shaped tool support having cassettes (20) disposed peripherally thereon, each of said cassettes containing a cutting insert (12, 13, 14), said cassettes being fastenable to a circular, partially circular or segmented removable support (11) that is fastened either directly to a machine spindle or indirectly to a machine spindle by way of an adapter.

Abstract: The invention relates to a cutting insert (10) with a base, having a supporting surface, a covering surface, at a distance therefrom and side faces (101, 102), connecting said surfaces, whereby two or several adjacent surfaces form cutting edges (103, 104, 105). According to said invention, the supporting surface is connected in a non-detachable manner to a supporting surface of a cutting plate (11), the geometry of which is different from the cutting insert (10) and suitable for another metal cutting operation.

Abstract: A milling cutting has a rotatable cylindrical tool carrier and is provided with polygonal cutting inserts including radial cutting inserts on the sides of the carrier and longitudinal cutting inserts on the cylindrical periphery which alternate with the radial inserts. The tangential cutting inserts have their cutting edges inclined to the axis or rotation at about 25° and have their rear most parts at a spacing from the cutting edge of the next following radial insert of less than 5 mm. The tool is especially useful for machining the cheeks and pins of a crank shaft.

Abstract: The invention relates to a rotor for an electrical rotating machine, e.g., a turbo generator. The rotor has a rotor winding that is provided with several sectors positioned next to each other in circumferential direction. In each sector, several conductor bars are stacked on top of each other in radial direction. The conductor bars extend parallel to the longitudinal rotor axis. Each of the sectors has an axial ventilation channel and several radial ventilation openings communicating with said ventilation channel. In relation to the conductor bars, the ventilation channel is positioned radially inside and extends parallel to the longitudinal rotor axis. The ventilation openings are spaced apart from each other in axial direction and extend radially through the conductor bars.

Abstract: In a turbo generator with a rotor with direct gas cooling, which rotor is provided with a rotor winding arranged around a central rotor body, said rotor winding being on the front sides covered by one each annular cap plate, and in which rotor cold cooling gas for cooling the rotor flows into ring gap segments between the cap plate and the rotor body, whereby the ring gap segments are bordered, when seen in circumferential direction, on the sides in each case by the section of an end spacer plate provided between the cap plate and the rotor winding, whereby this section is projecting into the ring gap, improved cooling is achieved in that separations of the cooling gas stream on flowing into the ring gap segments are avoided by designing the sections of the end spacer plates, whereby these sections adjoin the ring gap, in a manner that is advantageous with respect to the flow.

Abstract: The invention relates to a rotor for an electrical rotating machine, e.g., a turbo generator. The rotor has a rotor winding that is provided with several sectors positioned next to each other in circumferential direction. In each sector, several conductor bar are stacked on top of each other in radial direction. The conductor bars extend parallel to the longitudinal rotor axis. Each of the sectors has an axial ventilation channel and several radial ventilation openings communicating with said ventilation channel. In relation to the conductor bars, the ventilation channel is positioned radially inside and extends parallel to the longitudinal rotor axis. The ventilation openings are spaced apart from each other in axial direction and extend radially through the conductor bars.

Abstract: A turbo-generator comprising a shaft, on which is positioned an axial ventilator, a cover that divides an inflow chamber for a cooling gas transported by the axial ventilator from an outflow chamber for this cooling gas, and a cylindrical channel segment that is positioned coaxially to the axial compressor and surrounds the axial compressor radially, whereby the inflow chamber comprises an asymmetrical cooling gas supply, and whereby in the inflow chamber means for homogenizing the cooling gas supply to the axial ventilator are provided. In order to improve the cooling, and therefore the efficiency of the machine, the inflow chamber forms a rotation-symmetrical annular chamber in the region of an inflow opening of the channel segment. A cylindrical annular collar is positioned coaxially to the axial ventilator within this annular chamber. The annular collar projects axially into the annular chamber and forms a completely surrounding, radial throttling gap at the inflow opening.

Abstract: The invention relates to a gas-cooled machine, in particular a turbo-generator, comprising a shaft, on which is positioned an axial ventilator, a cover that divides an inflow chamber for a cooling gas transported by the axial ventilator from an outflow chamber for this cooling gas, and a cylindrical channel segment that is positioned coaxially to the axial compressor and surrounds the axial compressor radially, whereby the inflow chamber comprises an asymmetrical cooling gas supply, and whereby in the inflow chamber means for homogenizing the cooling gas supply to the axial ventilator are provided. In order to improve the cooling, and therefore the efficiency of the machine, the inflow chamber forms a rotation-symmetrical annular chamber in the region of an inflow opening of the channel segment. A cylindrical annular collar is positioned coaxially to the axial ventilator within this annular chamber.