Produits et services

Machine tool parts; namely, bits, end mills, roughers, and finishers for cutting and milling.

Produits et services

(1) Machine tool parts, namely, bits, end mills, roughers, and finishers for cutting and milling.

Abrégé

A vaporizer body (1) having a vaporizing surface (3) for vaporizing metal in a PVD-metallization installation, wherein the vaporizing surface (3) comprises a plurality of recesses (5, 5′, 5″), with an opening of the respective recess having an area/perimeter-ratio of greater than or equal to 1.5 mm.

Classes IPC  ?

• C23C 14/24 - Évaporation sous vide

Abrégé

Broadly contemplated herein, in accordance with at least one embodiment, is a multi-flute end mill configuration that maintains circumferential spacing between the rake surface and clearance surface adjoining two adjacent end face cutting edges, respectively, regardless of the number of flutes and the desired end face configuration.

Classes IPC  ?

• B23C 5/10 - Fraise à queue, c.-à-d. comportant une queue incorporée

Produits et services

End mills, drills, routers, reamers, counterbores, and form cutters.

Abrégé

A rounded nose end-mill modified by optimization of geometrical parameters of both the rake angle and relief angle along the cutting edge of the rounded portion, wherein the rake angle and the relief angle gradually increase along the cutting edge from the full diameter of the rounded portion to the tip.

Classes IPC  ?

• B23C 5/10 - Fraise à queue, c.-à-d. comportant une queue incorporée
• B23C 5/00 - Outils de fraisage

Abrégé

A method for producing a magnetizable metal shaped body comprising a ferromagnetic starting material that is present in powder and in particulate form, using the following steps: (a) first compaction of the starting material (S3) such that adjoining particles become bonded to each other by means of positive adhesion and/or integral bonding in sections along the peripheral surfaces thereof and while forming hollow spaces, (b) creating an electrically isolating surface coating on the peripheral surfaces of the particles in regions outside the joining sections (S4), and (c) second compaction of the particles (S5) provided with the surface coating, such that the hollow spaces are reduced in size or eliminated.

Classes IPC  ?

• B22F 3/15 - Compression isostatique à chaud
• H01F 1/24 - Aimants ou corps magnétiques, caractérisés par les matériaux magnétiques appropriésEmploi de matériaux spécifiés pour leurs propriétés magnétiques en matériaux inorganiques caractérisés par leur coercivité en matériaux magnétiques doux métaux ou alliages sous forme de particules, p. ex. de poudre comprimées, frittées ou agglomérées les particules étant isolées
• H01F 1/22 - Aimants ou corps magnétiques, caractérisés par les matériaux magnétiques appropriésEmploi de matériaux spécifiés pour leurs propriétés magnétiques en matériaux inorganiques caractérisés par leur coercivité en matériaux magnétiques doux métaux ou alliages sous forme de particules, p. ex. de poudre comprimées, frittées ou agglomérées
• H01F 41/02 - Appareils ou procédés spécialement adaptés à la fabrication ou à l'assemblage des aimants, des inductances ou des transformateursAppareils ou procédés spécialement adaptés à la fabrication des matériaux caractérisés par leurs propriétés magnétiques pour la fabrication de noyaux, bobines ou aimants

Abrégé

A vaporizer body (1) having a vaporizing surface (3) for vaporizing metal in a PVD-metallization installation, wherein the vaporizing surface (3) comprises a plurality of recesses (5, 5′, 5″), with an opening of the respective recess having an area/perimeter-ratio of greater than or equal to 1.5 mm.

Classes IPC  ?

• C23C 14/24 - Évaporation sous vide

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.

Classes IPC  ?

• B23C 3/06 - Fraisage de vilebrequins
• B23C 5/26 - Fixation des fraises sur la broche d'entraînement
• B23C 5/12 - Fraises spécialement conçues pour réaliser des profils particuliers

Abrégé

A chatter-resistant end mill and a method of making such an end mill, in which the teeth of the end mill are unequally spaced apart to substantially reduce or eliminate vibrations produced during cutting of a work piece.

Classes IPC  ?

• B23C 5/10 - Fraise à queue, c.-à-d. comportant une queue incorporée

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.

Classes IPC  ?

• B23B 27/02 - Outils de coupe dont la partie principale est rectiligne et comporte une arête coupante inclinée
• B23B 27/22 - Outils de coupe comportant des dispositifs pour briser les copeaux

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.

Classes IPC  ?

• B23B 1/00 - Méthodes de tournage ou méthodes de travail impliquant l'utilisation de toursUtilisation d'équipements auxiliaires en relation avec ces méthodes
• B23B 21/00 - Chariots de tourChariots transversauxChariots porte-outilsPièces similaires de n'importe quelles machines-outils

Abrégé

A face milling cutter has a shank portion adjoining a cutting portion. The cutting portion terminates in a plurality of cutting edges extending in a radial direction from a central axis of the face milling cutter. The cutting edges are convexly curved at least along a part of their length. A portion of the cutting edges proximate the central axis is nearer in an axial direction to the shank portion than a point, X, on the cutting edges that is farthest away from the shank portion. A distance Y, between the point, X, and the central axis is between 20% and 40% of a diameter, D, of the face milling cutter, and a central portion extends the distance, Y, and has a radius of curvature of about 110% of the diameter, D.

Classes IPC  ?

• 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

Abrégé

Evaporator body (1) with an evaporation surface area (3) for evaporating metal in a PVD metallization installation, wherein the evaporation surface area (3) has a plurality of depressions (5, 5', 5''), the respective opening of which has an area/circumference ratio of greater than or equal to 1.5 mm.

Classes IPC  ?

• C23C 14/24 - Évaporation sous vide

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.

Classes IPC  ?

• 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

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).

Classes IPC  ?

• B23C 5/24 - Dispositifs pour la fixation des taillants ou des dents réglables

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.

Classes IPC  ?

• B23B 27/22 - Outils de coupe comportant des dispositifs pour briser les copeaux
• B23B 27/00 - Outils pour machines à tourner ou à aléserOutils de type similaire en généralAccessoires de ces outils

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.

Classes IPC  ?

• C23C 16/36 - Carbo-nitrures

Abrégé

A method of orbital milling is performed using an orbital end mill, which has a cutting bit designed for orbital end milling. 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.

Classes IPC  ?

• B23C 3/00 - Fraisage de pièces particulièresOpérations de fraisage spécialesMachines à cet effet
• B23C 5/10 - Fraise à queue, c.-à-d. comportant une queue incorporée

Abrégé

A chatter-resistant end mill (10) and a method of making such an end mill, in which the teeth (18) of the end milt are unequally spaced apart to substantially reduce or eliminate vibrations produced during cutting of a work piece.

Classes IPC  ?

• B23C 5/10 - Fraise à queue, c.-à-d. comportant une queue incorporée
• B23C 5/00 - Outils de fraisage

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.

Classes IPC  ?

• B23B 27/14 - Outils de coupe sur lesquels les taillants ou éléments tranchants sont en matériaux particulier

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.

Classes IPC  ?

• B23C 5/24 - Dispositifs pour la fixation des taillants ou des dents réglables

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.

Classes IPC  ?

• B23C 5/00 - Outils de fraisage
• B23C 5/24 - Dispositifs pour la fixation des taillants ou des dents réglables

Abrégé

The invention relates to tools for the machining of materials by milling. The invention provides an improved form for a rotary cutting tool such as a face end-mill, configured to extend tool life while increasing metal removal rates and reducing tool wear. The invention provides a face milling cutter (10), in the range 4 - 5mm diameter, for fast metal removal having a shank portion (12) adjoining a cutting portion (14), the cutting portion terminating in a plurality of end cutting edges (18) positioned substantially radially from the axis of the milling cutter, the end cutting edges being curved at least along part of their length as viewed facing the end of the milling cutter.

Classes IPC  ?

• B23C 1/00 - Machines à fraiser non conçues pour des pièces particulières ou des opérations spéciales

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.

Classes IPC  ?

• B23B 5/18 - Machines ou dispositifs à tourner spécialement conçus pour un travail particulierAccessoires correspondants spécialement conçus à cet effet pour tourner des vilebrequins, des excentriques ou des cames, p. ex. tours pour manetons de vilebrequins
• B23C 3/06 - Fraisage de vilebrequins
• B23B 27/14 - Outils de coupe sur lesquels les taillants ou éléments tranchants sont en matériaux particulier
• B23D 37/00 - Machines à brocher ou dispositifs de brochage

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.

Classes IPC  ?

• B23C 5/22 - Dispositifs pour la fixation des taillants ou des dents

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.

Classes IPC  ?

• C23C 14/02 - Pré-traitement du matériau à revêtir
• 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 14/08 - Oxydes
• 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

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°.

Classes IPC  ?

• B23C 5/24 - Dispositifs pour la fixation des taillants ou des dents réglables
• B23C 5/06 - Fraises à surface, c.-à-d. fraises n'ayant qu'une surface de coupe pratiquement plate, ou principalement une telle surface
• B23C 3/06 - Fraisage de vilebrequins

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).

Classes IPC  ?

• B23C 5/22 - Dispositifs pour la fixation des taillants ou des dents

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.

Classes IPC  ?

• C23C 16/36 - Carbo-nitrures

Produits et services

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, huiles techniques, en particulier huiles lubrifiantes et hydrauliques et graisses, agents absorbant la poussière, agents mouillant la poussière et agents antipoussières. Métaux communs bruts et partiellement usinés et alliages métalliques; métaux durs et alliages de métaux durs; matériaux magnétiques permanents, matériaux magnétiques doux (métaux communs). Corps de coupe métalliques (machines), plaquettes tranchantes (parties de machines) en métal dur et en alliages de métaux durs; machines, en particulier machines et leurs outils pour enlever les copaux; porte-outils (parties de machines) et systèmes (machines-outils) pour enlever les copeaux et se composant d'éléments et d'outils différents; machines pour former, poinçonner, découper et estamper; machines de coupe pour le travail du papier, des matières textiles et des matières synthétiques; éléments de machines résistant à la corrosion et à l'usure; paliers (parties de machines), éléments de palier et autres éléments de machines pourvus de surfaces de glissement ou bien exposés à l'usure, machines de filtrage y compris les inserts pour ceux-ci. Corps de coupe métalliques (outils actionnés à la main), plaquettes tranchantes en métal dur et en alliages de métaux durs (outils actionnés à la main), outils actionnés à la main, en particulier outils et leurs éléments pour enlever les copeaux, outils actionnés à la main pour former, poinçonner, découper et estamper; appareils et outils de coupe actionnés à la main pour le travail du papier, des matières textiles et des matières synthétiques. Aimants permanents métalliques et non métalliques; éléments en matériaux magnétiques permanents; éléments en matériaux magnétiques doux; appareils électriques et électroniques de mesure, de vérification et de contrôle, en particulier pour des paramètres magnétiques; appareils électriques et électroniques de mesure, de vérification et de contrôle destinés à l'identification, à la surveillance, au mesurage et à la vérification et au marquage d'outils d'usinage et de machines-outils ainsi qu'éléments de ces appareils. Collecte, transport et stockage de matières de processus pour machines, en particulier de lubrifiants réfrigérants, d'huiles, de graisses, de produits chimiques de lavage, de produits à nettoyer des machines, d'agents anticorrosifs, d'agents de décapage et de matières de filtrage. Recyclage, transformation chimique, traitement biologique et raffinage de matières de processus pour machines, en particulier de lubrifiants réfrigérants, d'huiles, de graisses, de produits chimiques de lavage, de produits à nettoyer des machines, d'agents anticorrosifs, d'agents de décapage et de matières de filtrage. Incinération de matières de processus pour machines, en particulier de lubrifiants réfrigérants, d'huiles, de graisses, de produits chimiques de lavage, de produits à nettoyer des machines, d'agents anticorrosifs, d'agents de décapage et de matières de filtrage.

Produits et services

Evaporators or evaporation sources for evaporating metals and heating elements for these evaporators. Ceramic evaporation boats.

Produits et services

Métaux communs, bruts et/ou mi-ouvrés; quincaillerie, parties métalliques façonnés mécaniquement, matériaux à bâtir laminés et fondus, fonte coulée à la machine. Machines pour le traitement du métal, notamment machines productrices de force par l'air, de l'argile, du verre, du papier, du bois, des pierres, d'étoffes textiles et d'étoffes semblables ainsi que parties des machines précitées. Outils à main actionnés manuellement. Appareils et instruments médicaux.

Produits et services

Carbures métalliques et leurs alliages (abrasifs). Carbures métalliques et leurs alliages. Outils à main actionnés manuellement.

Produits et services

machine tool parts; namely, bits, end mills, roughers, and finishers for cutting and milling

Produits et services

Carbures métalliques et leurs alliages, en tant qu'abrasifs. Carbures métalliques et leurs alliages. Outils.

Produits et services

Crude or partially-worked non-precious metals and alloys thereof; hard metals and alloys, especially in the form of shaped pieces, sheet metal, strips, plates, rods, bars and wires made by casting, forging, laminating or sintering; cutting materials made of ceramic oxides, in the form of rods, sheet metal, strips, wires, tubes, tips with cutting edge and rings. Machine tools and components thereof. Tools and components thereof.

Produits et services

Métaux communs, bruts ou mi-ouvrés, métaux façonnés mécaniquement, matériaux à bâtir laminés et fondus, fonte coulée à la machine; petite quincaillerie. Machines productrices de force par la chaleur, par l'eau et par l'air, machines pour travailler les métaux, l'argile, le verre, les diamants, le cuir, le papier, le caoutchouc, le bois, les pierres, les matières textiles de provenance animale et végétale, le feutre, la corne, les os, le liège, l'écaille, la baleine, l'ivoire, la nacre, l'écume de mer et les autres matières semblables; parties des machines précitées. Outils, coutellerie. Appareils de physique, de chimie, optiques, géodésiques, nautiques, électrotechniques, de pesage, de signalisation, de contrôle, photographiques, instruments de mesurage. Appareils et instruments pour chirurgiens et médecins et pour l'hygiène, prothèses, yeux, dents. Parties de véhicules. Articles d'horlogerie (horloges, pendules, montres) et leurs parties.

Produits et services

Carbures métalliques et leurs alliages, matières pour la soudure rapportée. Métaux communs, bruts ou mi-ouvrés, et leurs alliages, matières pour la soudure rapportée. Pièces pour véhicules terrestres, aériens et nautiques, pour automobiles et pour vélocipèdes; paliers, pièces pour paliers et autres pièces de machines munies d'une surface de glissement ou soumises à l'usure. Coutellerie, outils, faux, faucilles, armes blanches; ustensiles d'agriculture. Appareils de physique, de chimie, optiques, électrotechniques et magnétiques et leurs parties, appareils géodésiques, nautiques, de pesage, de signalisation, de mesurage et de contrôle, haut-parleurs, aimants permanents, noyaux d'aimants, gabarits et pièces pour gabarits, pièces d'appareils de T.S.F. et de machines parlantes, machines à calculer, caisses enregistreuses. Appareils et instruments pour chirurgiens et médecins et pour l'hygiène, prothèses, dents. Pièces pour véhicules terrestres, aériens et nautiques, pour automobiles et pour vélocipèdes.

Produits et services

Carbures métalliques et alliages de ceux-ci. Carbures métalliques et alliages de ceux-ci. Outils.