Assignee: Walter AG

Location: Tubingen, DE
No. of patents: 29

Number	Title	Issue Date
8025991	Cutting tool with oxide coating By using the PVD process, cutting tools are provided with a coating that is a mono-phase ternary or more complex oxide. By appropriately defining the involved major component and minor component in terms of atom percent, the distortions of the formed oxide can be co...	09/27/2011
7799420	Method for producing a nonostructured functional coating and a coating that can be produced according to said method A method for producing a nanostructured, in particular a ceramic-like functional coating on a substrate is described. To that end, using at least one plasma source, a pulsed plasma is produced with which a matrix phase and at least one nano-scale interstitial phase ...	09/21/2010
7758975	Coating for a cutting tool and corresponding production method A coating, particularly for cutting tools, is presented which may be manufactured in a single PVD coating process allowing the making of two-color cutting tools in a simple manner. Between two metallic hard material layers of unlike color a separating layer 11	07/20/2010
7306409	Cutting insert having a rake surface and a plateau surface separated by a step A cutting insert intended exemplarily for use in a face-milling cutter, has an all-around extending rake surface which changes into a plateau surface by an uninterrupted step. The step reaches its greatest height in the corner regions of the cutting insert. The rake...	12/11/2007
7080963	Milling tool having an adjustable insert seat A milling tool includes insert seats in which respective cutting inserts are disposed. Positioned in each seat is a wedge plate which is adjustable relative to the tool body in a direction of wedge adjustment. A cutting insert is supported on the wedge plate and sec...	07/25/2006
7050925	Apparatus for integrated tool manufacture and method therefor A mechanism for integrated tool manufacture includes a display module and an input module for interrogated all required machining operations and measuring operations and for defining all measurement points, and a machining program module, which from the inputs gener...	05/23/2006
6958588	Machine equipped with a temperature compensated lathe spindle A machine for machining a workpiece with at least one revolving or rotating tool has a work spindle with a shaft (5), whose temperature is monitored by means of at least one temperature sensor (26). The temperature sensor is detected in contactless fas...	10/25/2005
6921233	Cutter insert and milling tool A cutter insert for milling tools includes a base body having a base surface, a top surface, and four side surfaces. The four side surfaces, together with each of the base surface and the top surface, define respective cutting edges. The base body is twisted about e...	07/26/2005
6907809	Positioning device for saw blades A saw blade positioning device has two drive mechanisms and two guidance devices, which are preferably oriented at right angles in respect to each other. If a first guidance device is oriented in the radial direction of the circular saw blade by the linear guides, a...	06/21/2005
6893195	Method and apparatus for producing forked roots of turbine blades For producing forked roots of turbine blades, the turbine blades are, in a first step, roughed-in and smoothed (finished) on their outer faces in a single operation with two rigidly coupled disk milling cutters that are provided hard metal cutter inserts. In a secon...	05/17/2005
6769842	Cutter plate and milling tool Cutter plates (19) with an approximately cube-shaped base body have been created, in particular for finish-milling of a crankshaft (5). At the edge of its cover surface, the base body is provided with a hump or protrusion, which can be embodied rib- or...	08/03/2004
6681655	Grinding attachment and saw-blade grinding machine with an HF spindle A grinding machine, preferably for sharpening circular saw-blades, has a machine frame that supports a device for supporting the saw blade, for fixedly clamping the blade, and for advancing the saw-blade tooth-by-tooth. The grinding attachment has two ind...	01/27/2004
6682274	Cutting insert with wear detection A cutting insert is provided with a combination coating, comprising a wear-protection coating and an indicating layer. The indicating layer preferably is provided on the tool flank or flanks, meaning for radial inserts on the side surfaces and for tangent...	01/27/2004
6617058	Cutting tool with a carbonitride coating A cutting tool is provided, at least in certain areas, with a carbonitride coating, which acts to reduce friction and as a wear-protective layer. The coating is applied by means of a modified PVD process in that, for creating the carbonitride layer, carbo...	09/09/2003
6616387	Metal cutting tool with direct cutting plate arrangement An improved slot-drilling cutter has a tool body with plate seats at the end, which are arranged symmetrically in respect to each other. Cutting plates are arranged on the seats, whose cutting edges, as well as possibly cutting edges 41, 42, are set ident...	09/09/2003
6436519	Cutting tool with multilayer, wear-resistant coating For coating a cutting tool with an aluminum oxide layer, a bonding layer has been provided that is preferably formed by aluminum titanate and has a flake-like crystal structure. This bonding layer improves the adherence of an aluminum oxide layer, in part...	08/20/2002
6332375	Saw blade sharpening machine having independently movable tooth grinding heads A saw blade sharpening machine includes a receiving and positioning chuck assembly for setting a saw blade in a grinding position in a plane corresponding to a main saw blade plane; and a grinding device which has a first and a second grinding head for gr...	12/25/2001
6322296	Precision milling cutter equipped with cutting tips A machining tool (1) has a tool body (2) with tip seats (6, 7, 8, 9), to which cutting tips (11, 12, 13, 14) are assigned fixedly and individually. The cutting tips (11, 12, 13, 14) belong to a set of cutting tips. The machining tool (1) includes further ...	11/27/2001
6290571	Virtual teach-in system A virtual teach-in module for programming grinding machines or other kinds of machine tools includes a graphic user surface. This surface includes the visual display of blanks, workpieces and tools. The elements shown can be displaced arbitrarily relative...	09/18/2001
6234881	Grinding machine for forming chip-producing cutting tools Cylindrical surface regions (1) of cutting tools (2, 21), such as drills, boring tools, reamers or the like, that is, cutting tools formed with chip removal grooves or flutes or recesses (6), are ground by engaging a rotary cutting disk (3) against the ri...	05/22/2001
5951213	Milling cutter, particularly for copying, and cutting insert therefor To facilitate manufacture and stocking of inserts for the ball end of a ball milling cutter, identical asymmetrical cutting inserts which are of generally pointed, elongated leaf shape, define two end points or tips, with two cutting edges opposite a theo...	09/14/1999
5911548	Tool for the production of arc-shaped grooves To form undercut grooves in a work piece, especially to retain turbine rotor blades, in a first step, the grooves are cut such that the flanks of the grooves have a preliminarily desired shape; then, in a second step, a bell-type countersink is moved radi...	06/15/1999
5755536	indexable cutting insert In a cutting insert, cutting edge (9) is formed by the junction of a chip face (21, 22) and a flank (15). The flank is an extension of a straight portion (11) of a side face (5, 6) which begins at the base (2). Rather than remaining straight throughout th...	05/26/1998
5738564	Numerically controlled grinding machine for grinding workpieces, in particular tools A numerically controlled grinding machine for grinding workpieces, such as tools, and other metallic or ceramic elements, comprises a machine bed (1) having fixedly connected to it a rigid, distortion-free portal (9) which has a reinforcing rear wall (13)...	04/14/1998
5720583	Cutting bit, in particular indexable cutting bit A cutting bit, in particular an indexable cutting bit, has a polygonal base body with a flat bottom side (1), a flat or structured top side (4) spaced apart from the bottom side, and a number of side surfaces (2) adjoining one another, forming corners (3)...	02/24/1998
5704740	Drilling tool, particularly for metallic materials Cutting elements or cutter chips (7, 8) are located on a tool body (1). Cutting chip removal spaces (14, 15) are formed in the tool body in three segments. A first segment (I) adjoins the end face (4) of the drill body and includes at least one cutting el...	01/06/1998
5676505	Method and milling tool to make deep grooves in a workpiece, especially in rotors of generators and turbines A deep groove, for example a groove in a rotor for a generator or turbine, can be formed in the rotor blank in only two sequential milling cuts, and wherein each milling cut, utilizing a single rotary milling cutter, carries out at the time both coarse cu...	10/14/1997
5658100	Interlocking, or form fitting cutting bit or chip A cutting bit formed as a round plate for a material removal tool has a base body, which is defined by a bottom face, a top opposite it and spaced apart from it, and a side face between them. The side face, with a chip face located on the top, defines a c...	08/19/1997
5542793	Rotary cutting tool with axially precision positioned end cutting inserts To support an indexable cutting insert (6a) cutting with an end edge and facing edge (7a) as well as circumferentially, with respect to both axially acting forces as well as radially acting forces, the tool body (1) is formed with an abutment surface (17)...	08/06/1996

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Assignee: Walter AG