Kennametal Widia Produktions GmbH & Co. KG (Allemagne)
Inventeur(s)
Heinloth, Markus
Thurnwald, Walter
Abrégé
The invention relates to a tool coupling for connecting a tool carrier which can be driven in a rotating manner, in particular a milling tool with a machine spindle or an adapter connected to a spindle, wherein four drivers in a crosswise formation are provided for transmitting torque between the said parts and in the clamping state engage in four recesses. To allow the tool coupling to be easily operated and to be of a simple construction, and also to counteract undesired jamming, it is proposed that the drivers respectively have on the side transmitting the torque a planar face which lies with full surface-area contact against a wall of a groove-shaped recess in the clamping state, that on the opposite side the driver has a smaller positively or frictionally engaging contact with the wall there of the groove-shaped recess and that a quick-acting clamping device is providing for the axial clamping of the tool carrier and the spindle or an adapter.
Kennametal Widia Produktions GmbH & Co. KG (Allemagne)
Inventeur(s)
Zastrozynski, Jürgen
Abrégé
A cutting insert for machining a workpiece. The abstract of the disclosure is submitted herewith as required by 37 C.F.R. §1.72(b). As stated in 37 C.F.R. §1.72(b): A brief abstract of the technical disclosure in the specification must commence on a separate sheet, preferably following the claims, under the heading “Abstract of the Disclosure.” The purpose of the abstract is to enable the Patent and Trademark Office and the public generally to determine quickly from a cursory inspection the nature and gist of the technical disclosure. The abstract shall not be used for interpreting the scope of the claims. Therefore, any statements made relating to the abstract are not intended to limit the claims in any manner and should not be interpreted as limiting the claims in any manner.
Kennametal Widia Produktions GmbH & Co. KG (Allemagne)
Inventeur(s)
Serwuschok, Klaus
Abrégé
A method of machining a crankshaft using a machine tool arrangement having a cutting insert comprising a first plurality of cutting teeth comprising a rounded cutting tooth being disposed at the intersection of a first contoured side surface and a first planar side surface; and second plurality of cutting teeth comprising a rounded, corner cutting tooth being disposed at the intersection of said second contoured side surface and a second planar side surface.
B23B 1/00 - Méthodes de tournage ou méthodes de travail impliquant l'utilisation de tours; Utilisation d'équipements auxiliaires en relation avec ces méthodes
B23B 21/00 - Chariots de tour; Chariots transversaux; Chariots porte-outils; Pièces similaires de n'importe quelles machines-outils
Kennametal Widia Produktions GmbH & Co., KG (Allemagne)
Inventeur(s)
Heinloth, Markus
Bär, Jürgen
Hausmann, Martin
Schwaner, Carsten
Abrégé
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.
B23P 15/34 - Fabrication d'objets déterminés par des opérations non couvertes par une seule autre sous-classe ou un groupe de la présente sous-classe d'outils de coupe de fraises
Kennametal Widia Produktions GmbH & Co. KG (Allemagne)
Inventeur(s)
Heinloth, Markus
Klötzer, Ralf
Bauer, Manfred
Gnibl, Günther
Klein, Helmut
Abrégé
The invention relates to a milling cutter head having a number of blade supports (11) which are inserted in recesses of a base body (10) and have blades (12), wherein each blade support can be axially displaced by a wedge and fixed in the milling cutter head by clamping elements. According to the invention, the blade supports each have a shank which is arranged in a receiving bore of the base body and can be fixed via a centrally (13) located clamping piece (18).
Kennametal Widia Produktions GmbH & Co. KG (Allemagne)
Inventeur(s)
Sladek, Alfred
Wessel, Andreas
Schwaner, Carsten
Hausmann, Martin
Abrégé
The invention relates to a cutting insert, in particular for a milling work, with a basic body which respectively has on opposite sides peripheral cutting edges, which protrude beyond the respectively adjoining face regions (15), descending at a positive rake angle, in the middle of which one or more planar supporting surfaces (16) are arranged, and with a central fastening hole (12) for receiving a tensioning screw. Arranged around the central fastening hole is at least one conical surface (19), with a cone descending inwards, i.e. towards the fastening hole.
Kennametal Widia Produktions GmbH & Co KG (Allemagne)
Inventeur(s)
Sottke, Volkmar
Lenk, Doris
Westphal, Hartmut
Van Den Berg, Hendrikus
Abrégé
The invention relates to a method for producing a coated substrate body by chemical vapor deposition at least on one layer made of a carbonitride of a metal of IVa-Vla-groups of the periodic table, wherein a monocyclic hydrocarbon is used in the gas atmosphere during the deposition, in addition to a nitrile. According to the invention, the thus produced coated substrate body has a high degree of hardness and is used, preferably, in cutting operations where the cutting speeds are ≧250 m/min.
KENNAMETAL WIDIA PRODUKTIONS GMBH & CO. KG (Allemagne)
Inventeur(s)
Zastrozynski, Jürgen
Abrégé
The invention relates to a cutting insert with a supporting surface (11) and a cutting surface at a distance therefrom and at least one flank (12) positioned by a positive clearance angle, which form a circumferential round or polygonal cutting edge, as well as at least one cutting edge point (13) at a maximum distance from a plane in which the supporting surface (11) is located and at least one cutting edge point (16, 17) at a minimum distance from said plane. According to the invention, the geometric location of each cutting edge point, but at least the cutting edge point (16, 17) at a minimum distance and points adjacent thereto is teh intersection point of a vertical envelope with a plane parallel to the supporting surface (11), wherein the vertical envelope is perpendicular to the supporting surface (11) and is formed by a plurality of parallel vertical lines (18, 19) that lie in the plane parallel to the support surface (11) in which the point (13) with maximum distance from the support surface plane lies and constitutes an ideal theoretical round or polygonal cutting edge curve.
KENNAMETAL WIDIA PRODUKTIONS GMBH & CO. KG (Allemagne)
BAUER, Ludwig (Allemagne)
BAUER, Gerhard (Allemagne)
Inventeur(s)
Bauer, Manfred
Abrégé
The invention relates to a tool comprising an essentially cylindrical tool holder, the face of which is provided with several recesses for accommodating cutting inserts (12), and an adjusting device (13) for displacing the cutting insert in a radial or axial direction. The two legs of the inventive adjusting device, which has an essentially L-shaped cross-sectional contour, rest against the preferably substantially cuboidal cutting insert. The adjusting device can be radially or axially moved by means of a threaded screw (15) while entraining the cutting insert.
KENNAMETAL WIDIA PRODUKTIONS GMBH & CO. KG (Allemagne)
Inventeur(s)
Heinloth, Markus
Klötzer, Ralf
Klein, Helmut
Abrégé
The invention relates to a cutter support for fixing in a cutter head, comprising a shaft-like bar and a head with integrated cutters with minor cutters formed from a cutting surface and a free surface. According to the invention, a chamfer adjacent to the minor cutter is arranged on the free surface with a chamfer width decreasing outwardly to 0.
KENNAMETAL WIDIA PRODUKTIONS GMBH & CO. KG (Allemagne)
Inventeur(s)
Serwuschok, Klaus
Abrégé
The invention relates to a cutting insert with a prismatic base form, with an upper and a lower surface (11), arranged parallel to each other and connected by four lateral surfaces perpendicular thereto, of which two opposing lateral surfaces (14) have projecting and recessed sections, which, together with the upper and lower surfaces form corrugated cutting edges and of which the two remaining opposing lateral surfaces (13) are arranged planar and parallel to each other. According to the invention, at least one cutting corner (18) formed by two adjacent lateral surfaces (13, 14) has an embodiment as a cutting edge. The invention further relates to a method with application of the disclosed cutting insert which firstly, for facing a central bearing, is radially displaced on a rotated workpiece and then, for finishing a bearing surface, is axially displaced.
B23B 5/18 - Machines ou dispositifs à tourner spécialement conçus pour un travail particulier; Accessoires correspondants spécialement conçus à cet effet pour tourner des vilebrequins, des excentriques ou des cames, p.ex. tours pour manetons de vilebrequins
The invention relates to a cutting insert, in particular for a milling work, with a basic body which respectively has on opposite sides peripheral cutting edges, which protrude beyond the respectively adjoining face regions (15), descending at a positive rake angle, in the middle of which one or more planar supporting surfaces (16) are arranged, and with a central fastening hole (12) for receiving a tensioning screw. Arranged around the central fastening hole is at least one conical surface (19), with a cone descending inwards, i.e. towards the fastening hole.
KENNAMETAL WIDIA PRODUKTIONS GMBH & CO. KG (Allemagne)
Inventeur(s)
Westphal, Hartmut
Van Den Berg, Hendrikus
Abrégé
The invention relates to a method of coating a cemented carbide or cermet substrate body by means of PVD, in which the fully sintered substrate body is subjected without further intermediate treatment before PVD coating to a blasting treatment using a particulate blasting agent until the zone close to the surface of the substrate body has a residual stress which is at least essentially of the same magnitude as the residual stress present in the single or first applied PVD layer. The invention further relates to such a coated cemented carbide or cermet body, in particular in the form of a cutting tool.
C23C 14/06 - Revêtement par évaporation sous vide, pulvérisation cathodique ou implantation d'ions du matériau composant le revêtement caractérisé par le matériau de revêtement
C23C 30/00 - Revêtement avec des matériaux métalliques, caractérisé uniquement par la composition du matériau métallique, c. à d. non caractérisé par le procédé de revêtement
B23B 27/14 - Outils de coupe sur lesquels les taillants ou éléments tranchants sont en matériaux particulier
KENNAMETAL WIDIA PRODUKTIONS GMBH & CO. KG (Allemagne)
Inventeur(s)
Heinloth, Markus
Klötzer, Ralf
Klein, Helmut
Abrégé
The invention relates to a milling cutter head having a plurality of blade holders (11) which are inserted into recesses of a parent body (10) and on which respective blades (12) are brazed in position. According to the invention, at least one blade (12') is angled and has a longer section (c), lying radially on the outside with respect to the axis of the milling cutter head, and a shorter section (b) which lies radially on the inside and is angled at 3° to 7°, preferably 5°.
KENNAMETAL WIDIA PRODUKTIONS GMBH & CO. KG (Allemagne)
Inventeur(s)
Bär, Jürgen, Thomas
Hecht, Jochen
Abrégé
The invention relates to a cutting insert having an essentially parallelepiped-shaped basic body with two larger spaced-apart longitudinal surfaces (10,11) which are connected to one another by two smaller transverse surfaces (12, 13) and two smaller longitudinal surfaces (14) designed as rake faces, wherein the smaller longitudinal surfaces (14) form with the adjacent surfaces a respective, encircling, closed cutting line which forms the cutting edges and rounded-off cutting corners, and the larger longitudinal surface (10, 11) merges on both sides via respective rounded-off edges into the smaller transverse surface (12, 13), and one of the rounded-off cutting corners is designed so as to project relative to a basic shape which is determined by the cutting lines, on both sides, of the larger longitudinal surfaces (10, 11) with the smaller longitudinal surfaces (14).
KENNAMETAL WIDIA PRODUKTIONS GMBH & CO. KG (Allemagne)
Inventeur(s)
Sottke, Volkmar
Lenk, Doris
Westphal, Hartmut
Van Den Berg, Hendrikus
Abrégé
The invention relates to a method for producing a coated substrate body by chemical vapour deposition at least on one layer made of a carbonitride of a metal of IVa-Vla-groups of the periodic table, wherein a monocyclic hydrocarbon is used in the gas atmosphere during the deposition, in addition to a nitrile. According to the invention, the thus produced coated substrate body has a high degree of hardness and is used, preferably, in cutting operations where the cutting speeds are ≥ 250 m/min.
KENNAMETAL WIDIA PRODUKTIONS GMBH & CO. KG (Allemagne)
Inventeur(s)
Heinloth, Markus
Klötzer, Ralf
Bauer, Manfred
Gnibl, Günther
Klein, Helmut
Abrégé
The invention relates to a milling cutter head having a number of blade supports (11) which are inserted in recesses of a base body (10) and have blades (12), wherein each blade support can be axially displaced by means of a wedge (14) and be fixed in the milling cutter head by means of clamping elements. According to the invention, the blade supports each have a shank which is arranged in a receiving bore of the base body and can be fixed via a centrally (13) located clamping piece (18).
KENNAMETAL WIDIA PRODUKTIONS GMBH & CO. KG (Allemagne)
Inventeur(s)
Heinloth, Markus
Klein, Helmut
Abrégé
The invention relates to a machining tool with a tool holder (10) which may be rotated about the longitudinal axis thereof, with a cutting insert (12) fixed to the front face thereof by means of a tension screw (13) running through a central drilling (25) of the cutting insert and screwed into a sleeve (11) with an internal thread which is secured against displacement along the longitudinal axis. According to the invention, the sleeve (11) or the pin-shaped extension (15) thereof has a recess (16) in the outer casing thereof which engages with a security element detachably fixed in the tool support (10) in the tensioned state.
B23B 27/12 - Outils de coupe avec une disposition particulière pour le refroidissement avec une arête de coupe circulaire en rotation continue; Porte-outils pour ces outils
B23B 27/16 - Outils de coupe sur lesquels les taillants ou éléments tranchants sont en matériaux particulier à éléments tranchants interchangeables, p.ex. pouvant être fixés par des brides
B23B 31/00 - Mandrins de serrage; Mandrins extensibles; Leurs adaptations à la commande à distance
KENNAMETAL WIDIA PRODUKTIONS GMBH & CO. KG (Allemagne)
Inventeur(s)
Heinloth, Markus
Zastrozynski, Jürgen
Abrégé
The invention relates to a cutting insert, in particular for machining crankshafts, having two base surfaces (10, 11) which are arranged parallel to one another and through which a respective hole (12) passes for receiving a clamping screw and which merge at their shorter edges into rounded end faces which are each defined laterally by cutting edges. According to the invention, at least one pair of the cutting edges is of stepped design and has two convex sections (13, 14) and a concave section (15) lying in between, wherein the outer convex section (13) extends over an angle of 180°.
KENNAMETAL WIDIA PRODUKTIONS GMBH & CO. KG (Allemagne)
Inventeur(s)
Heinloth, Markus
Zastrozynski, Jürgen
Abrégé
The invention relates to a method for machining crankshafts during which the machining of the bearing width and of the oil collar should be carried out simultaneously. To this end, a disk-shaped outer milling cutter having a number of cutting tools (10, 14) is used of which a portion serves to machine a bearing base of the crankshaft and the other portion serves to machine an oil collar adjacent to the bearing base. According to the invention, a set angle (κ) for the cutting tools for machining the oil collar is selected according to the actual dimension, during which the effective depth of cut hmax for each cutting insert is limited to a predeterminable maximum value. The invention also relates to a device for carrying out this method.
KENNAMETAL WIDIA PRODUKTIONS GMBH & CO. KG (Allemagne)
Inventeur(s)
Heinloth, Markus
Bär, Jürgen
Hausmann, Martin
Schwaner, Carsten
Abrégé
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.
KENNAMETAL WIDIA PRODUKTIONS GMBH & CO. KG (Allemagne)
Inventeur(s)
Heinloth, Markus
Bär, Jürgen
Hausmann, Martin
Schwaner, Carsten
Abrégé
The invention relates to a cutting insert for clamping into a disc-type or strip-shaped tool body, in particular, for milling crankshafts, whereby said insert is substantially cuboid-shaped and has two front faces, the distance between which defines the width (4) of the cutting insert, two side faces, serving as cutting faces (6) and the distance between which determines the thickness (3) of the cutting insert as well as an upper and a lower side face (5), whereby a convex face (1) 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 (7) each with a side face, which terminate laterally in cutting corners. According to said invention, the cutting insert is characterised in that an inwardly-tapered face (2) adjoins the convex face, which allows the cutting edge to protrude, tapered chamfers (13, 14) are provided between the inwardly-tapered faces (2) of the front face on both sides of a planar supporting surface to the outer edge and the width and the thickness of the cutting insert vary from each other by a maximum of 20 % and preferably have identical lengths.
KENNAMETAL WIDIA PRODUKTIONS GMBH & CO. KG (Allemagne)
Inventeur(s)
Sottke, Volkmar
Westphal, Hartmut
Van Den Berg, Hendrikus
Abrégé
The invention relates to a composite material consisting of a base body with a multilayered coating, containing at least one mulitphase layer of aluminum oxide, zirconium and/or hafnium and titanium and a single-phase layer made of Al2O3, ZrO2 and/or HfO2.
C23C 28/04 - Revêtements uniquement de matériaux inorganiques non métalliques
C23C 30/00 - Revêtement avec des matériaux métalliques, caractérisé uniquement par la composition du matériau métallique, c. à d. non caractérisé par le procédé de revêtement
01 - Produits chimiques destinés à l'industrie, aux sciences ainsi qu'à l'agriculture
02 - Couleurs, vernis, laques
03 - Produits cosmétiques et préparations de toilette; préparations pour blanchir, nettoyer, polir et abraser.
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Matières de filtrage (comprises dans cette classe). Agents anticorrosifs. Produits pour nettoyer les machines, en particulier produits
chimiques de lavage, agents de décapage. Lubrifiants réfrigérants miscibles et non miscibles à l'eau,
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09 - Appareils et instruments scientifiques et électriques
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01 - Produits chimiques destinés à l'industrie, aux sciences ainsi qu'à l'agriculture
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