Assignee: General Electric Company

Location: Detroit, MI
No. of patents: 46

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Number	Title	Issue Date
4730525	Indexable cutting tool In accordance with the present invention, there is provided a cutting tool having a cutting tool insert which is automatically rotationally indexable. The cutting tool includes a shank and an indexable cutting tool insert rotatably connected to the shank....	03/15/1988
4708536	Expandable wedge assembly for releasably securing an insert in a cutting tool An expandable wedge assembly which releasably secures a cutting blade or wafer like indexable insert in a pocket of a cutting tool. The wedge assembly includes flexible legs which expand or flex outwardly to secure the insert against a wall of the pocket ...	11/24/1987
4705439	Machine tool collet containing means for passing a cutting fluid therethrough Disclosed is a machine tool collet having a collet body having a shaft for receiving a cutting tool at a forward open end thereof and a rearward open end insertable into a tool holder means, at least one first axial slit opening into the rearward open end...	11/10/1987
4698070	Cutting insert for interrupted heavy machining A cutting insert is provided with at least one crystal portion containing a first concentration of super-hard crystals, such as diamond or cubic boron nitride crystals, and core portion. The crystal portion and the core portion are united by amatrix of &#...	10/06/1987
4668132	Cutting tool A blade for a cutting tool is provided having plane parallel faces with V-shaped upper and lower jaws, the jaws being separated at one plane parallel face by a web, the upper and lower jaws being shaped to receive and prevent lateral movement of an insert...	05/26/1987
4649084	Process for adhering an oxide coating on a cobalt-enriched zone, and articles made from said process An improved fabrication process for cobalt-enriched cemented carbide substrates is disclosed, in which an article is generally comprised of tungsten carbide, cobalt, and carbides, nitrides or carbonitrides of titanium, tantalum, and niobium, or mixtures t...	03/10/1987
4631993	Grooving tool and method for making same The machine tool parts and method of making same includes providing cooperating attachment means between the shank and the tool bit head assembly, wherein a predetermined portion of the attachment means on the shank is located a first predetermined distan...	12/30/1986
4620822	Flat bottom hole drill A drill is provided having opposed primary and secondary cutting edges extending perpendicular to the longitudinal axis of the drill. The primary cutting edge extends across the longitudinal axis of the drill to a terminus intermediate the longitudinal ax...	11/04/1986
4608098	Coated product and process Improved adherence of oxide wear layers on hard metal or cemented carbide substrates is attained by providing a thin surface-oxidized bonding layer comprising a carbide or oxycarbide of at least one of tantalum, niobium or vanadium, optionally adding alum...	08/26/1986
4590828	Metal cutting tool adjuster and compensator A metal cutting tool holder and adjusting mechanism having a rotational drive; a housing and cam mounted therein for rotation by the rotational drive; a cam follower mounted on the cam for axial motion; a wedge block axially slidably contained in the hous...	05/27/1986
4585375	Milling inserts A cutter insert is provided which is adapted to be supported on a flat platform on a cutter body and abutting edgewise against walls upstanding from said platform. The insert comprises a flat block of cutting material in the geometric shape of a parallelo...	04/29/1986
4583854	High resolution electronic automatic imaging and inspecting system In a high resolution optical electronic imaging system to detect defects and dimensional changes in articles of manufacture for example, metal cutting tool inserts, a convergent blade-shaped laser light beam emitted by a laser passes through a focusing op...	04/22/1986
4571841	Tool pre-gauging device A system and method for pre-gauging cutting tools comprising means for releasably holding and moving a cutting tool to a gauging position or zone, and an electronic gauging means moveable to contact the cutting tool in the gauging zone for measuring and c...	02/25/1986
4561810	Bi-level cutting insert A cutting insert is provided with a core having upper and lower surfaces and a recess in the upper surface. Crystal portions containing a dispersion of super-hard crystals are disposed at predetermined locations on the periphery of the upper surface of th...	12/31/1985
4558975	Drill with disposable inserts The present invention provides a drilling tool having a shank and at least one pair of identical cutting inserts, the inserts having an octagonal shape having alternate equal obtuse angles. Each of the inserts is arranged such that they each have a differ...	12/17/1985
4548786	Coated carbide cutting tool insert Cobalt cemented carbide cutting inserts are prepared for coating with a hard, wear-resistant coating by providing a cobalt enriched zone on a surface to be coated. Cobalt enrichment is effectuated by means of nitrogen gas contact with the carbide followed...	10/22/1985
4544517	Automatic composite press technique for producing cutting inserts A technique for providing an intermediate composite adapted to be reaction sintered to produce a cutting insert includes the steps of positioning a pellet of material disposed within a holder on top of a first plunger within a mold by moving the holder an...	10/01/1985
4529338	Insert arrangement for a milling tool Metal working tools or tool holders having a body with flat-faced surface containing insert pockets with at least two indexable inserts in each pocket are described. A tapered wedge block is positioned between each pair of inserts to wedge the inserts aga...	07/16/1985
4504284	Indexable composite cutting insert having corner cutting edges An indexable composite cutting insert which is generally polygonal in plan view and includes spaced upper and lower surfaces, is composed of a core, such as a SiC-Si composite material, with the corners along one surface of the composite cutting insert be...	03/12/1985
4501786	Coated product with oxide wear layer Improved adherence of oxide wear layers on hard metal or cemented carbide substrates is attained by providing a thin surface-oxidized bonding layer comprising a carbide or oxycarbide of at least one of tantalum, niobium or vanadium, optionally adding alum...	02/26/1985
4499800	Tool holder clamping means A tool holder clamping and unclamping device utilizes a special combination of a Belleville spring biased bolt threading device to actuate a ball detent mechanism to lock a tool holder in the device....	02/19/1985
4497639	Silicon carbide cutting insert with pre-pressed core center piece and sintered diamond envelope A silicon carbide cutting insert is prepared using a pre-pressed core dispersion of carbon fiber, carbon black, and filler in a temporary binder such as paraffin. The pre-pressed core dispersion is enveloped with a dispersion of super-hard crystals and ca...	02/05/1985
4497874	Coated carbide cutting tool insert A coated carbide insert has a cobalt enriched zone at one decarburized surface, and a thin TiN transition layer over this surface. The cobalt enriched zone and the TiN layer cooperate to support additional thicker layers of hard wear resistant material su...	02/05/1985
4490191	Coated product and process Improved adherence of oxide wear layers on hard metal or cemented carbide substrates is obtained by providing a thin surface-oxidized bonding layer comprising a carbide or oxycarbide of at least one of tantalum, niobium or vanadium, optionally adding alum...	12/25/1984
4483892	Wear resistant annular insert and process for making same A wear-resistant annular insert which may be used as a wire drawing die, includes an annular exterior layer and an annular interior layer, containing diamond or cubic boron nitride crystals, bonded to the interior of the annular exterior layer by a ³...	11/20/1984
4475851	Inserts for cutting tools An indexable disposable insert is described having eight contiguous edge faces of equal length and two octagonal side faces having alternate corners with equal obtuse angles, cutting edges being formed at the junction of at least one of the octagonal side...	10/09/1984
4470731	Milling cutter with adjustable finishing insert The subject invention relates to an improved assembly for mounting a finishing insert in a milling cutter. More particularly, the subject invention facilitates the adjustment of the tilt of a finishing insert relative to a milling cutter to improve the fi...	09/11/1984
4465650	Process for preparing nitrided superhard composite materials A cutting insert having a cutting portion comprising a dispersion of diamond crystals in a matrix of ଲ-silicon carbide and silicon nitride is produced by forming a first dispersion of diamond crystals evenly coated with carbon black in a temporary b...	08/14/1984
4463062	Oxide bond for aluminum oxide coated cutting tools The bond between a hard wear resistant coating of Al2 O3 and a cemented carbide substrate is greatly improved by means of a more effective interlayer of TiO. The TiO layer is provided by means of a reduction process from other titani...	07/31/1984
4448591	Cutting insert having unique cross section A blank adapted to be mounted on a substrate to form a cutting insert is formed by preparing a crystal dispersion of super-hard crystals, such as diamond or cubic boron nitride crystals, and carbon black in a temporary binder, and a core dispersion of car...	05/15/1984
4436775	Hard metal body and method of making same A multi-layered wear resistant article and a method for forming the same is disclosed which is adapted for use with cutting tools. More particularly, the article includes a substrate formed from a cemented sintered metal carbide material such as a tungste...	03/13/1984
4436463	Quick change tooling system The subject invention relates to an assembly for facilitating the mounting and ejection of a rotatable cutting tool adaptor on a machine tool. More particularly, the subject invention allows a cutting tool adaptor to be manually interlocked with a rotatab...	03/13/1984
4411565	Finishing insert with improved chip control A finishing insert for use with an indexable cutting tool is formed from a flat wafer of cutting material which is generally polygonal in plan form and includes a pair of opposed faces and a plurality of upstanding side walls extending therebetween. The j...	10/25/1983
4372708	Resin capsule and method for grouting anchor elements in holes of various lengths A two component resin capsule is disclosed for grouting an anchor element in a predrilled hole. More specifically, a flexible resin capsule is provided which may be wound on a reel and fed into a predrilled hole of any length. The resin capsule includes a...	02/08/1983
4359300	Cutting insert with improved chip control A cutting insert for use with an indexable cutting tool is formed from a flat wafer of cutting material which is generally polygonal in plane form and includes a pair of opposed faces and a plurality of upstanding side walls extending therebetween. The ju...	11/16/1982
4351448	Packaging container for mining and construction tools A heavy duty packaging container for tools includes a body portion having an open end, a closed base, a front wall, a back wall, and a pair of opposed sidewalls. The body has a pair of cover engagement members each having a cutout portion, each being fixe...	09/28/1982
4341493	Adjustable clamping wedge system for cutting insert of a milling cutter A milling cutter includes an array of pockets each having radially extending side walls and a base wall from which radially projects an elongated locating rail. A safety wedge has one surface in engagement with one wall of the pocket and its opposed surfa...	07/27/1982
4340325	Cutting insert for deep grooving A cutting insert for use in a deep grooving tool is formed from an elongated generally rectangular block of cutting material having a cutting end. The insert includes a straight cutting edge, disposed perpendicular to the longitudinal axis of the insert a...	07/20/1982
4339006	Method and apparatus for mine roof drilling A method and apparatus for drilling bolt holes in a mine roof is described. The drill head of a roof bolting drill is provided with a deep chuck adapted to receive the lower male end of a conventional drill steel driver. In a drilling operation, a drill b...	07/13/1982
4271114	Method of compacting dry powder into shapes A method of making shaped articles from powders comprises forming a cup mold of a destructible organic polymeric material such as nylon, cellulose acetate, poly(methyl methacrylate), polypropylene or polyethylene. The inner surface of the mold corresponds...	06/02/1981

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Assignee: General Electric Company