Abstract: The present invention provides a cutting tool for surgical procedures. More specifically, the present invention provides a rotary surgical cutting tool which overcomes the disadvantages of prior art surgical cutting tools by providing a rotary cutting tool having straight flutes, with each side of the flute being provided with a cutting edge that permits cutting in both directions during limited oscillatory motion of the rotary surgical cutting tool. The areas between the cutting edges are provided with relief to reduce friction while the flute moves the cut material away from the cutting edges.

Abstract: A spacer structure (204; 205) for a saw disc assembly of a sawing machine (4), comprises a hub device (220) having a central axis and being adapted to be coaxially arranged between a pair of axially peripheral saw discs. According to the invention, said hub device (220) is configured and adapted to detachably or non-detachably receive a proximal portion (231) of an elongated spacer means (230) in a substantially radial manner in relation to said hub device, said elongated spacer means (230) being adapted to be arranged between said pair of saw discs, a distal portion (235) of said elongated spacer means (230) being constituted and adapted to detachably or non-detachably connect to said pair of peripheral saw discs.

Abstract: Provided is a resin-coated saw wire that, when used to cut a workpiece, has a shallow depth of a damaged layer and can give a cut article having a smooth surface. The resin-coated saw wire is used in cutting of the workpiece using a sawing machine and includes a steel wire and a resin coating covering the steel wire surface. The resin coating contains substantially no abrasive grain, has a hardness at 120° C. of 0.07 GPa or more, and has a hardness controlled so as to prevent abrasive grains from coming into the resin coating, which abrasive grains are sprayed during workpiece cutting.

Abstract: A wire having a surface and diamond particles bonded to said surface by a bond matrix, wherein each diamond particle has surface roughness of about 0.60 to about 0.80 and a sphericity of about 0.25 to about 0.50.

Abstract: An abrasive article comprising an elongated body, a bonding layer overlying a surface of the elongated body, and abrasive grains contained within the bonding layer at an average abrasive grain concentration within a range between about 0.02 ct/m and about 0.30 ct/m.

Abstract: An abrasive article includes an elongated body, a bonding layer including a metal overlying a surface of the elongated body, and a coating layer including a polymer material overlying the boding layer. The abrasive article further includes abrasive grains contained within the bonding layer and coating layer, and wherein the bonding layer comprises an average thickness (tbl) at least about 40% of the average grit size of the abrasive grains.

Abstract: A sawing rope (270) with abrasive elements (506) fixed on a steel rope (502) with a polymer jacket (504) is described and claimed. The abrasive elements (506) are made of a metallic sleeve on which an abrasive layer is deposited by means of electrolytic deposition, by means of sintering or by means of cladding for example laser cladding. Characteristic about this sawing rope (270) in view of the prior known sawing ropes is that each sleeve shows a connection or closure. Such a connection makes it possible to attach abrasive elements (506) on the rope without having to thread them on the rope (270) as is needed when making prior-art sawing ropes. The inventive sawing rope (270) can therefore be made in long lengths in a very efficient way.

Abstract: A sawing wire (100,110,120,130) with abrasive particles (20) is presented wherein the particles (20) are partly embedded in said a metallic core (14) and partly in said an organic binder layer (30). The advantage of the wire (100,110,120,130) is that the application of a metallic binder layer (30) can be avoided. Metallic binder layers add to the cost of a fixed abrasive sawing wire and in many cases pose health and safety problems which can be avoided by the use of an organic binder layer. Moreover the advantages of a good fixture of the abrasive particles in the metallic wire are maintained. Different embodiments are presented with different degrees of embedment into the metal wire.

Abstract: An abrasive article for use with a grinding wheel including an abrasive body having abrasive grains contained within a matrix of bond material, the abrasive body having a plurality of arm portions defining a twisted path having a plurality of linear portions joined by a plurality of turns.

Abstract: A fret saw includes a cutting wire and fixed abrasive grains provided on the cutting wire by electroplating. Each of the fixed abrasive grains includes a core and a hard film coated on the core. The core is 1 to 60 micrometers in diameter. The core is made of a material selected from the group consisting of a Ti metal and a Ti alloy. The hard film is 1 to 40 micrometers thick. The hard film covers about 30% to 90% of the surface of the core.

Abstract: Embodiments of the disclosure provide a saw chain having a pitch in the range of approximately 0.440 to approximately 0.450. Embodiments also include tie straps and/or other components having fluid distribution features.

Abstract: In an outer blade cutting wheel comprising an annular thin disc base of cemented carbide having an outer diameter of 80-200 mm, an inner diameter of 30-80 mm, and a thickness of 0.1-1.0 mm, and a blade section disposed on an outer periphery of the base, the blade section comprises diamond grains and/or CBN grains bound with a metal bond having a Young's modulus of 0.7-4.0×1011 Pa and has a thickness which is greater than the thickness of the base by at least 0.01 mm. The outer blade cutting wheel is capable of cutting a workpiece at a high accuracy and a reduced allowance, improves machining yields, and reduces machining costs.

Abstract: The method relates to the manufacture of a reinforced diamond-coated cable for cutting structures and materials of steel, concrete, steel and concrete, stone materials or the like, in which such diamond-coated cable comprises a plurality of outer strands (101) of metal material such as steel or the like wound in a helix around an inner central strand (201) and a series of sheaths (2) inserted along such outer strands (101) and having on their external profiles (202) projecting members of strongly abrasive materials such as industrial diamonds or the like.

Abstract: A hard-faced cutting blade and hard-facing method is provided. A hard-facing material is applied to a cutting edge of a cutting blade such that a heat-affected transition zone may be created between the base metal and the hard-facing material. The heat-affected transition zone may create a sufficient bond to help resist delamination and flaking of the hard-facing material from the base metal.

Abstract: A method for a down hole cutting tool is disclosed, wherein the cutting tool includes a cutting element support structure having at least one cutter pocket to support a cutting element comprising a substrate and an ultrahard layer. The method includes inserting a base portion of the cutting element into the cutter pocket; locating a first braze alloy such that when heated the first braze alloy melts and fills a space in the cutter pocket between the cutting element and the cutting element support structure adjacent the ultrahard layer; locating a second braze alloy such that when heated the second braze alloy melts and fills a space in the cutter pocket between the cutting element and the cutting element support structure non-adjacent the ultrahard layer; and heating the first and second braze alloy such that they melt.

Abstract: Embodiments of the disclosure provide an aggregate cutting saw chain having a pitch in the range of approximately 0.440 to approximately 0.450. Embodiments also include tie straps and/or other components having fluid distribution features.

Abstract: The device (1) for wire sawing of a piece (10) to be sawed that is mounted on a support table (20) comprises fastening means (15, 26, 40) for fastening said piece (10) to be sawed to a carriage (18) apt to cooperate with a guide rail of said support table (20), said fastening means (15, 26, 40) consisting of a mounting plate (15) apt to be manufactured to which said piece (10) to be sawed is bonded, and of anchoring means (26, 40) for anchoring said mounting plate (15) directly on said carriage (18).

Abstract: The device (1) for wire sawing of a piece (10) to be sawed that is mounted on a support table (20) comprises fastening means (15, 26, 40) for fastening said piece (10) to be sawed to a carriage (18) apt to cooperate with a guide rail of said support table (20), said fastening means (15, 26, 40) consisting of a mounting plate (15) apt to be manufactured to which said piece (10) to be sawed is bonded, and of anchoring means (26, 40) for anchoring said mounting plate (15) directly on said carriage (18).

Abstract: A tool holder for a grinding machine, where the tool holder is mounted to a grinding platform of the grinding machine. The tool holder includes a plate member having a tapered slot where opposing stop elements are provided within the slot at a central location. The tool includes a pair of circular elements that are positioned on either side of the stop elements in the slot and are forced into the tapered shape of the slot so that the tool is held to the tool holder.

Abstract: The invention provides a segment type diamond tool capable of improving cutting rate and reducing the amount of fine debris generated during cutting by properly arranging diamond particles in a cutting segment of the diamond tool. In the invention, the layers of diamond particles are arranged such that cutting grooves formed on a workpiece by trailing layers of diamond particles are arranged between cutting grooves formed thereon by leading layers of diamond particles, respectively, in cutting of the work piece. The cutting segment has high-concentration and low-concentration areas. The high-concentration area shows a concentration higher than an average concentration and the low concentration area shows a concentration lower than the average concentration. Also, at least one low concentration area is formed on the leading and/or trailing section of the cutting segment. The diamond tool of the invention ensures superior cutting rate and reduced amount of fine debris generated during cutting.

Abstract: A sawing strip for fixing a substantially cylindrical workpiece when cutting off slices from this workpiece with a wire saw has a first face, which is concavely curved perpendicular to its longitudinal direction for connecting to the workpiece, a second face opposite the first face for connecting to a mounting plate, and two side faces which connect the first face and the second face, two edges of the sawing strip at which the side faces meet the first face at a distance a from each other, an imaginary line on the first face marking its minimum distance d from the second face, the side faces being at a distance b, measured at the height of the line and perpendicular to the distance d, wherein the distance b is less than the distance a. The sawing strip is useful for decreasing waviness of wafers cut from a cylindrical workpiece using the sawing strip.

Abstract: The invention provides a cutting segment for a cutting tool for cutting or drilling a brittle work piece such as stone, bricks, concrete and asphalt, and a cutting tool having the cutting segment. The cutting segment includes a cutting surface for cutting a work piece and a plurality of abrasive particle layers. The abrasive particle layers are disposed perpendicular to a cutting direction. Each of the abrasive layers has a plurality of abrasive particle rows in a width direction of the cutting segment. Each of the abrasive rows has a plurality of abrasive particles arranged in a line. Further, the abrasive layers have a plurality of blank sections therebetween. In the blanks sections, abrasive particles are absent or have a concentration of 70% or less with respect to those in the abrasive rows. In addition, the blank sections include relatively thick blank sections and relatively thin blank sections.

Abstract: A tool for cutting stone materials, porcelaneous stoneware, glass and the like. The tool includes a support having a transverse thickness with respect to the direction of cutting and abrasive segments attached to the support and made from a mixture of abrasive material and binder. The segments are positioned in sequence along a cutting edge of the support, project from the support, and define a first and a second plurality of segments. One or more segments of the first plurality alternate with one or more segments of the second plurality in sequences which are repeated along the cutting edge. The segments of the first plurality have a greater thickness than the segments of the second plurality, and the abrasive material from which the segments of the first plurality are formed has a smaller particle size than the abrasive material from which the segments of the second plurality are formed.

Abstract: The invention relates to a cutting segment of a diamond tool for cutting or drilling a brittle workpiece such as stone, bricks, concrete and asphalt, and a diamond tool having the same. The invention allows superior cutting rate and lengthy useful life without suffering from R wear during cutting. In the cutting segment, a number of diamond particles are arranged in a plurality of plate-shaped layers stacked perpendicular to a cutting direction. Each of the diamond particle layers has a plurality of particle rows on a cutting surface. Further, at least two of the diamond particle layers are superimposed on at least one side of the cutting segment seen from the front of the cutting segment in cutting direction. The invention ensures uniform cutting by significantly reducing R wear that arises during cutting and thus enables superior cutting rate and longer useful life.

Abstract: A stone saw blade (1) includes an elongated base body (2) and a plurality of teeth (3). The teeth (3) are designed and arranged to be unset and to include geometrically defined cutting portions (11). The teeth (3) include a form body (4) being connected to the base body (2). The form body (4) includes a carrier (21) being made of hard metal and a layer (5) forming the cutting portion (11). The layer (5) has a hardness of at least 5,000 HK.

Abstract: In one embodiment, a cutting tool assembly used for creating grooves in a microreplication tool is described. The cutting tool assembly includes a mounting structure and multiple diamonds mounted in the mounting structure. For example, first and second tool shanks having first and second diamond tips can be positioned in the mounting structure such that a cutting location of a diamond cutting tip of the first tool shank is a defined distance from a cutting location of a diamond cutting tip of the second tool shank. The defined distance may correspond to an integer number of pitch spacings, and may be accurate to within a tolerance of less than approximately 10 microns.

Abstract: A grinding wheel has a disc having a connection hole formed at a center thereof, to which a rotation axis of a grinder is connected, and a plurality of abrasive segments detachably connected to a surface of the disc. A plurality of fixing recesses are radially formed on the surface of the disc at an interval and fixing protrusions having a shape corresponding to the fixing recess are formed on bottom surfaces of the abrasive segments, so that the abrasive segments are connected to the disc by inserting the fixing protrusions into the fixing recesses. According to the grinding wheel, when the abrasive segment is worn away or inferior as it is used for a long time, it has only to replace the corresponding abrasive segment only. Accordingly, an economical efficiency is high.

Abstract: The invention relates to a chainsaw chain, especially for use in cutting concrete, comprising a plurality of teeth which are respectively provided with at least one cutting segment carrier and at least one cutting segment. The cutting segment comprises diamond punches which are melted into a binding material in such a way that they are embedded therein.

Abstract: The invention provides a segment type diamond tool capable of improving cutting rate and reducing the amount of fine debris generated during cutting by properly arranging diamond particles in a cutting segment of the diamond tool. In the invention, the layers of diamond particles are arranged such that cutting grooves formed on a workpiece by trailing layers of diamond particles are arranged between cutting grooves formed thereon by leading layers of diamond particles, respectively, in cutting of the work piece. The cutting segment has high-concentration and low-concentration areas. The high-concentration area shows a concentration higher than an average concentration and the low concentration area shows a concentration lower than the average concentration. Also, at least one low concentration area is formed on the leading and/or trailing section of the cutting segment. The diamond tool of the invention ensures superior cutting rate and reduced amount of fine debris generated during cutting.

Abstract: A cutting segment for a cutting tool used for cutting or drilling brittle workpieces, such as stone, brick, concrete and asphalt, a method for manufacturing the segment, and a cutting tool comprising the segment are disclosed. The segment comprises layers of diamond particles and two kinds of plate-shaped metal matrix layers comprising soft and hard metal matrix layers having different ductility. The plate-shaped metal matrix layers are arranged perpendicular to a cutting surface while being parallel to a cutting direction, and are alternately stacked perpendicular to the cutting direction. The layers of diamond particles are suitably arranged in the plate-shaped soft and hard metal matrix layers. The segment and the cutting tool comprising the same have excellent cutting ability, and the manufacturing process thereof can be simplified, thereby remarkably enhancing productivity.

Abstract: This invention relates to a carbide wire blade that is suitable for use in sawing through subsea structures. The carbide wire blade employs a tungsten carbide cutter, a vibration dampening member, and the first cylindrical spacer, slideably mounted on a solid cylindrical body.

Abstract: A processing tip and a cutting tool employing the same, including a tip body of a mixture of metal and abrasive material, and at least one projection coupled to the tip body, the projection extending in a direction perpendicular to a direction of a plane of contact between the tip body and a shank.

Abstract: A cutting tip for a diamond tool and a diamond tool having the same which serve to cut or perforate various brittle materials such as stone, brick, concrete and asphalt. In particular, the cutting tip for a diamond tool and the diamond tool have diamond particles which are suitably arrayed to improve the cutting rate. A cutting tip for a diamond tool having diamond particles which are distributed in the cutting tip, wherein the diamond particles are inclined in respect to a cutting direction in a plane parallel to a cutting surface, and arrayed whereby grooved channels are formed successively overlapped on a brittle substance in cutting operation.

Abstract: A processing tip and a cutting tool employing the same, including a tip body of a mixture of metal and abrasive material, and at least one projection coupled to the tip body, the projection extending in a direction perpendicular to a direction of a plane of contact between the tip body and a shank.

Abstract: The present invention relates to a diamond saw blade for milling. The rim of the circular metal with a shaft or the front end of the tubular body or an edge of the strip metal has multiple equidistant openings for positioning the diamond grains. The width of the opening is slightly wider or equal to the diameter of the diamond grain. After the diamond grains are positioned in each opening, the metal surface on both sides of each opening is pressed by the jig through two directions. The metal surface on both sides of the opening is deformed by the pressure from the jig, and extrudes along the direction of each opening for bonding diamond grains. Further, the surface forms a rugged cutting edge. More, a diamond layer with diamond grains is electroplated on the surface of the cutting edge. It, therefore, has a long lifecycle and becomes a high-speed cutting edge for milling without deformation.

Abstract: A cutting segment for a cutting tool used for cutting or drilling a brittle workpiece, such as stone, brick, concrete and asphalt, a method of manufacturing the segment and a cutting tool provided with the segment are disclosed. The segment comprises a plurality of plate-shaped metal matrix layers laminated perpendicular to a cutting surface of the segment while being parallel to a cutting direction of the segment, the plate-shaped metal matrix layers being integrally combined with each other and made of a ferrous or non-ferrous material; and diamond particle layers arranged between the plate-shaped metal matrix layers such that diamond particles can be provided in an array on the cutting surface. The segment has an excellent cutting capability, and can be made by a simplified manufacturing process, thereby remarkably reducing manufacturing costs.

Abstract: Disclosed is a diamond tool having a metal plate inserted therein. Between abrasive layers containing diamond particles is inserted a ferrous or non-ferrous metal plate having a wear resistance lower than that of the abrasive layers such that a concave groove is spontaneously formed during a cutting process, thereby reducing the contact load with a workpiece to thereby avoid vibration (wobbling) of a shank, and providing a discharge path for smoothly removing cutting chips and the cooling water. In addition, the content of abrasives and the wear resistance of bonding material are uniformly constituted so that the shrinkage rate does not need to be considered during sintering and the manufacturing process can be simplified, thereby reducing the manufacturing cost and improving the productivity therefor. Furthermore, the area of the metal plate can be controlled, thereby enabling an easy design conforming to the working conditions with a workpiece.

Abstract: An enhanced and improved diamond circular saw blade of an invention is disclosed. The invention includes welding and jointing of the periphery of a circular steel blade having an axle bore and a plurality of arc-shaped copper alloy metal-sheets. Each arc-shaped copper alloy metal-sheet includes a plurality of openings, which provide the space required to accommodate a plurality of diamond particles. The width of an opening is somewhat wider than the diameter of an individual diamond particle. When the diamond particles are placed inside each opening of the copper alloy metal-sheets, a pair of molds is used to compress the top and the bottom of a plurality of metal teeth between adjacent openings simultaneously. By compressing this pair of molds, the metal teeth between adjacent openings are deformed, so as to squeeze along the direction of these openings and to enclose and hold the diamond particles. As a result, the surface is of an indentation-shaped saw plate.

Abstract: A diamond wire (1) is disclosed for cutting stone material comprising a support cable (2) with around it a plurality of cutting bushes (3) and a plurality of elastic means (5). The cuttting bushes (3) comprise: an hollow cylindric support (10); at least one diamond cutting sector (12) connected to an external surface of the support (10); and at least one non-diamond support/cutting sector (14) connected to the external surface of the support (10) and laterally connected to the cutting sector (12).

Abstract: A method and apparatus for providing radiused corners on a crack control groove is provided. A radius on the two opposing corners of the crack control groove is simultaneously formed by inserting a pilot segment of a rotating cutting blade into the groove to chase the groove with the blade. The cutting blade has side cutting segments on opposing sides of the pilot segment. The side cutting segments have a concave shape with abrasive material thereon and are located and sized to cut a predetermined radius on the opposing corners 32. Convex shaped shoulder segments inhibit the formation of a well if the blade cuts too deeply. The pilot segment advantageously has no abrasive on its sides so it does not widen the groove, and the pilot segment is shorter than the depth of the groove so it does not deepen the groove.

Abstract: A cutting tool for cutting hard rock, the cutting tool including one or more cutting elements each including a pointed or chisel-shaped body including a diamond composite material including diamond crystals bonded together by a silicon carbide matrix, the each cutting element being mounted into a supporting matrix including a metal matrix composite material, such that the point or chisel edge of the each element protrudes from the matrix.

Abstract: A saw blade of uniform abrasive segments with undercut protection to prevent loss of segments and to extend blade life. A metal core includes a uniform peripheral contour formed as a series of spaced apart, segment mounting sections separated by radial gullet channels. A diamond cutting segment is securely bonded to each such mounting section at a bonding interface between the segment and the metal core. Adjacent the ends of each segment on opposite sides of successive gullet channels, are upstanding ears which at least register with and extend through the radial arc of the bonding interface between the segments and the metal core. Both the upstanding ears and the region beneath each segment are preferably overcoated with a wear protection material such as carbide. The overcoated region beneath each segment includes a contoured edge to assist in directing swarf away from the cutting groove.

Abstract: The invention relates to a saw wire consisting essentially of a steel wire, an intermediate layer and a metallic binding phase into which diamond grains with an average diameter of 10 to 50 micrometers are inserted, characterized in that the metallic binding phase has a hardness of between 600 and 1100 HV 0.1 and consists of an inner layer and an outer layer which are arranged concentrically around the steel wire provided with the intermediate layer. The inner layer has a thickness of approximately between 10 and 25% of the average diamond grain diameter, while the thickness of the outer layer is such that the overall thickness of the metallic binding phase is 45-55% of the average diamond grain diameter and the diamond grains have an average interval of not more than 5 times their average diameter. Other fine particles with an average diameter of 1 to 6 micrometers are located between the diamond grains with an average diameter of 10 to 50 micrometers.

Abstract: A molded tooth design of generally pyramidal form made of various hard grit materials for use on a grinding wheel for grinding non-metal materials. The tooth structure generally includes a raked face having a neutral to positive rake angle that terminates to a sharp point. The tooth structure also includes on the raked face edge portions below the point extending from both sides thereof having a predetermined clearance angle to increase penetration and reduce friction of the tooth during the grinding process. The tooth structure may also include at a top end of the rake face a truncated clearance surface which will produce a wider cutting edge that is flat, for use in attacking the work surface of the work piece being ground. The rake face of the tooth generally may also be formed to have positive rake in the truncated surface.

Abstract: A saw chain for cutting aggregate material having cutting segments wherein diamonds are embedded in a matrix material, said cutting of an aggregate structure achieved by drawing the segment across the aggregate structure with the diamonds exposed so as to abrade away the aggregate material producing thereby a kerf. The diamonds initially being unexposed and requiring an initial abrasion of the matrix material surrounding the diamonds. The surface of the cutting head having a peak portion whereby minimal abrading of the matrix in the peak portion rapidly exposes diamonds to commence the abrasion of the aggregate.

Abstract: Sintered metal bonded segments with an abrasive action, and containing particles of hard material, for tools for machining or cutting hard and/or brittle materials with a tool support which accommodates the sintered metal bonded segments, which are made up of individual segment modules.

Abstract: A saw blade of uniform abrasive segments with undercut protection to prevent loss of segments and to extend blade life. A metal core includes a uniform peripheral contour formed as a series of spaced apart, segment mounting sections separated by radial gullet channels. A diamond cutting segment is securely bonded to each such mounting section at a bonding interface between the segment and the metal core. Adjacent the ends of each segment on opposite sides of successive gullet channels, are upstanding ears which at least register with and extend through the radial arc of the bonding interface between the segments and the metal core. Both the upstanding ears and the region beneath each segment are preferably overcoated with a wear protection material such as carbide. The overcoated region beneath each segment includes a contoured edge to assist in directing swarf away from the cutting groove.

Abstract: A method and apparatus for providing radiused corners on a crack control groove is provided. A radius on the two opposing corners of the crack control groove is simultaneously formed by inserting a pilot segment of a rotating cutting blade into the groove to chase the groove with the blade. The cutting blade has side cutting segments on opposing sides of the pilot segment. The side cutting segments have a concave shape with abrasive material thereon and are located and sized to cut a predetermined radius on the opposing corners 32. Convex shaped shoulder segments inhibit the formation of a well if the blade cuts too deeply. The pilot segment advantageously has no abrasive on its sides so it does not widen the groove, and the pilot segment is shorter than the depth of the groove so it does not deepen the groove.

Abstract: Cubic boron nitride tooling, e.g. for woodworking, is fabricated with the same geometries and machinery as is used for fabricating conventional carbide tooling.

Abstract: A cutting tool for cutting hard rock, said cutting tool including one or more cutting elements (10) each comprising a pointed or chisel-shaped body (12) including a diamond composite material including diamond crystals bonded together by a silicon carbide matrix, the each cutting element being mounted into a supporting matrix comprising a metal matrix composite material, such that the point or chisel edge of the each element protrudes from said matrix.