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7296497 Method and device for manufacturing a drill blank or a mill blank  
The present invention relates to a method for manufacturing a drill blank or a mill blank by extrusion, said method comprising the forming of a first blank portion (B 1 ) having external, axially...
7216565 Methods of manufacturing and repairing steel body rotary drill bits including support elements affixed to the bit body at least partially defining cutter pocket recesses  
A steel body rotary drag bit for drilling a subterranean formation includes a plurality of support elements affixed to the bit body, each forming at least a portion of a cutting element pocket....
7214009 Drilling tool  
A drilling tool consisting of a drill shank having a drill point and of a transition section which adjoins the drill shank in the axial direction and which merges into a clamping shank, the...
7104160 Method of making a cutting tool  
A method for producing a cutting tool such a twist grill, end mill, or the like. The method provides an unbonded assembly including a cylindrical core having ends and an elongate side surface...
6923112 Juice extractor including cutter components for enhanced quality and yield performance and associated methods  
A juice extractor includes first and second cups being relatively movable along a reciprocal path of travel to compress fruit therebetween during juice extraction. The extractor also includes a...
6860172 Method for making a powdered metal compact  
A method for producing a powdered metal compact for a cutting head to be used in a metal cutting tool uses a punch and die assembly. The resulting cutting head has apertures communicating between a...
6588520 Rock drill  
A rock drill has at least one hard material insert ( 2 ) with at least two cutting edges ( 3, 7 ) consisting of hard material and extending radially to the drill axis (A), whereby, in a radial...
6575674 Reaming tool and process for its production  
A multi or single cutter reaming tool has a shaft and a shaped head with at least one cutter. The shaped head is produced from a blank having a base body of a base material on its envelope surface...
6568883 Method of finishing inner circumferential surface, and reamer  
A reamer includes: (a) an axially-distal-end small-diameter portion; (b) a guide portion which is axially adjacent to the small-diameter portion; (c) at least one flute which is formed in an outer...
6540452 Drilling tool for machine tools and method for the production thereof  
The invention relates to a drilling tool for machine tools and to a method for the production thereof. The drilling tool has at least one chip conveyor groove ( 16 ) and at least one functional...
6536305 Cutting plate and method of pressing a cutting plate  
The cutting plate for a drill bit is press-formed from a powdery starting material. In the process, the cutting plate is arranged horizontally in the press die and the relative movement of top...
6487938 Paper drill bit  
There is provided a process for the treatment of a paper drill bit comprising the steps of subjecting the drill bit to deep cryogenic treatment, and coating the drill bit with a dry film...
6415687 Rotary cone drill bit with machined cutting structure and method  
A rotary cone drill bit is provided with at least one cutter cone assembly having a machined cutting structure which will maintain an effective cutting profile despite abrasion, erosion and/or wear...
6353771 Rapid manufacturing of molds for forming drill bits  
A mold is formed for an building earth boring bit by designing the bit geometry in three dimensions using a computer aided design (CAD) system and then feeding the geometry data of the design to a...
6283477 Annular chamber seal  
Internal and external metal-to-metal radially interfering seals are provided for an annular chamber. Typically, an annular chamber is used in tubular goods to be part of the hydraulic control...
6200076 Cutting tool and method for producing the same  
A method for producing cutting tools incorporated in the present invention is carried out as follows: a shank portion and a drill portion are formed separately such that the inner diameter of a...
6182533 Method of making a drill blank  
A method of making a drill blank which is elongate and which has a vein of a bonding material located in an end surface thereof. A recess is formed in a surface of a cemented carbide body. Either a...
6158304 Process for forming a center cutting end mill  
A center cutting or plunging end mill or ball nose end mill has one or more spiral grooves and flutes in the walls of a mill body of cemented tungsten carbide. Each groove includes polycrystalline...
6145410 Bandsaw blade  
A method of making a cutting blade using a fiber composite tape formed into a continuous closed loop. The tape is selected and prepared such that at least some of the fibers form an acute angle...
6123489 Drilling tool for machine tools and method of producing the same  
6100494 Insert for an abrasive tool  
A method is provided for producing two or more inserts for an abrasive tool. Each insert includes an abrasive compact layer bonded to a support layer along an interface which has a discontinuity in...
6055886 Drill blank  
A drill blank, particularly a blank for a micro-drill, comprises an elongate cylindrical cemented carbide body, having flat end surfaces, a recess formed in one end surface and taking the form of...
6035844 Cutting tool and method for making the same  
A cutting tool is provided which includes a steel metal body and a cemented carbide cutting tip secured to the metal body by a metallic layer. The metallic layer has a high-strength metallic...
5979912 Heavy-metal shrink fit cutting tool mount  
A mount for interfacing a cutting tool having a generally cylindrical shank portion to a tool holder having a central opening. The mount comprises an elongate, generally cylindrical shank member...
5957006 Fabrication method for rotary bits and bit components  
A method of fabricating rotary bits for subterranean drilling by layering techniques such as are employed in rapid prototyping technology. Thin layers of powder may be sequentially deposited and...
5921727 Reamer with friction resistant layer and method for forming same  
A reamer for finish machining a bore formed in a workpiece and method for providing a reamer with an abrasion resistant material. The reamer includes a body defining an outer surface, a cutting...
5909985 Drill having plate-like cutter member fixed at proximal end to shank and having cutting edge at distal portion  
A drill including a cutter member and a shank which are formed separately from each other and fixed to each other for rotation as a unit, wherein the shank has an engaging groove formed in a distal...
5876155 Method of eliminating chatter in plunge cutting with cutters at different diameters and depths  
A method that eliminates or reduces chatter when plunge cutting with boring cutters at different diameters, different tool geometries, different chip loads and different cutting depths, by...
5868885 Manufacture of cutting tools  
A method for manufacturing cutting tools having diamond-like cutting edges or surfaces which are formed by bonding high shear compaction diamond or cubic boron nitride (CBN) ropes or strips in...
5842267 Method and apparatus for forming parts of a predetermined shape from a continuous stock material  
The present invention provides a method and apparatus for forming a plurality of parts, such as spade-type boring bits, from a continuous stock material. Thus, the various steps of the forming...
5782145 Process for the fabrication of a multi-blade tool  
A process for fabricating a multi-blade tool out of high strength tool steel and the tool fabricated therewith. The present invention is distinguished by the following steps. Initially, a profile,...
5700113 Spade-type boring bit and an associated method and apparatus for forming metallic parts  
The spade-type boring bit includes an elongate shank defining a central longitudinal axis and a blade portion joined to one end of the shank and including a pair of generally flat side segments...
5662183 High strength matrix material for PDC drag bits  
A PDC drag bit body is disclosed which utilizes a high-strength infiltration binder having a composition comprising a nickel, cobalt, or iron base alloy. The infiltration molding process is...
5598751 Cutting insert  
A cutting insert having a cutting head and a coupling shank integral at one end thereof with the cutting head and including a screw threaded portion. The cutting insert is formed by a powder...
5526716 Method for manufacturing a cutter  
A cutting tool is disclosed which includes a tool body having a mounting portion to be secured to a machine tool and having a plurality of insert receiving recesses formed therein. A plurality of...
5488761 Flexible shaft and method for manufacturing same  
A shaft coupling for transmitting power including a flexible hollow rod extending in a longitudinal direction and having pairs of helical slots formed thereon. The pairs of slots are spaced from...
5413016 Method for manufacturing cutting tools and cutting tools made thereby  
In a method of manufacturing tools having attached thereto cutting plates with a cutting edge coated with a hard cutting material, the cutting plates are first positioned on the cutting tool body...
5299471 Cutting insert for a rotary cutting tool  
A cutting insert for a rotary cutting tool comprises a body of tungsten carbide, with layers of polycrystalline diamond on opposite sides of the body. The diamond layers overlap across the...
5299441 Method of making a mandrel comprising a drill section for a self-drilling blind rivet  
A method of making an elongated mandrel having an end integral with a drill section, with the method including the steps of subjecting a single columnar piece of material to the heading process so...
5291806 Spade-type drill bit apparatus and method  
A spade-type drill bit is disclosed having a shank portion and a spade bit portion extending from the shank portion. The spade bit portion includes a spade portion with a planar region, and a...
5265500 Method of making shock-resistant and wear-resistant tools of composite steel structure  
A method of making a shock-resistant and wear-resistant composite steel tool comprises providing a steel tool body having a working edge, and providing a working part material of nonporous wrought...
5246318 Annular hole cutter  
A tipped annular hole cutter is made by brazing all the cutting tips (30) simultaneously to the cylindrical wall (12) of the cutter body. The tips (30) have outer and inner lands (32, 34) which...
5123217 Drill for use in drilling hard and brittle materials  
A drill for use in drilling hard and brittle materials includes a shank and a drilling portion attached to one end of the shank. The drilling portion includes a tapered primary cutting edge, a...
5116659 Extrusion process and tool for the production of a blank having internal bores  
The invention relates to an extrusion process and an extrusion tool for the production of cylindrical metallic or ceramic blanks having one or more internal twisted longitudinal bores. A...
5098234 Hollow drill for fabric and the like  
A hollow drill for fabric and the like is comprised of a hollow shaft having highly polished inside and outside surfaces and an outside diameter of preferably not more than 0.130 inches. A tip...
5063768 Spring-loaded teeth for comminuter rolls  
A tooth for use in a comminuter roll comprises a roll of spring steel having a first end formed into a point or other abrading shape. The tooth is compressed upon insertion into a mounting hole in...
5028177 Multi-component cutting element using triangular, rectangular and higher order polyhedral-shaped polycrystalline diamond disks  
A diamond cutter for use in a drill bit having a geometric size and shape normally characterized by unleached diamond product, such as STRATAPAX diamond cutters, can be fabricated by assembling a...
4887496 Method of making drills, endmills and other rotating-and-cutting tools  
Disclosed is a method of making drills, endmills and other rotating-and-cutting tools comprising the steps of: extruding super-hard metal powder into a spiral rod; sintering the spiral rod; forming...
4820962 Arrangement for automatic working data set-up for driving implements  
Single or multi-track data markings are provided on the shank of a tool bit between a torque transmission region at one end and a working region proper for automatic working data set-up of a...
4802799 Drill bit  
A drill bit tip construction wherein the cutting edge at the tip of the drill bit is arranged to cause fragmentation of the chips being removed from the work metal during the drilling operation....
Matches 1 - 50 out of 148 1 2 3 >