1292 results about "Wire saw" patented technology

A superabrasive wire saw having a plurality of individual coated superabrasive particles attached to a wire with an organic binder is disclosed and described. The superabrasive particle can be coated with a solidified coating of a molten braze alloy that is chemically bonded to the superabrasive particle. The organic binder can optionally contain filler materials and/or an organometallic coupling agent to improve the retention of coated superabrasive particles. The resulting superabrasive wire saws can be produced having diameters of less than 0.5 mm which significantly reduce kerf loss. Various methods for making and using such a superabrasive wire saw are additionally disclosed and described.

The present invention features a reciprocating wire saw particularly adapted or configured for cutting hard materials. In one aspect, the reciprocating wire saw comprises (a) a flexible wire; (b) a plurality of cutting segments fittable onto the flexible wire, wherein each of the cutting segments comprises an outer surface; and a (c) plurality of superabrasive particles braze bonded onto the outer surface of the cutting segments to form a cutting wire. In another aspect, the reciprocating wire saw comprises a plurality of superabrasive particles braze bonded directly to the wire itself to form a cutting wire. The cutting wire is unique in that it comprises a pre-determined superabrasive particle concentration and is configured to cut various materials, such as granite, in a reciprocating manner.

PCT No. PCT/JP98/00532 Sec. 371 Date Mar. 9, 1999 Sec. 102(e) Date Mar. 9, 1999 PCT Filed Feb. 9, 1998 PCT Pub. No. WO98/35784 PCT Pub. Date Aug. 20, 1998The present invention provides a wire saw for use in cutting works of electronics materials or optical materials and a method for manufacturing the same, said wire saw having the following characteristic features. Namely, onto a high-strength core wire 2, abrasive grains 3 having a grain size not smaller than two-thirds the thickness of a layer of resin bond 4 on said core wire 2 but not exceeding a half the diameter of said core wire are fixed with said resin bond, said resin bond containing a filler having a grain size smaller than two-thirds the thickness of said resin bond layer. The thus structured and arranged wire saw has an improved efficiency and precision in cutting. The wire saw can be manufactured readily by using an enamelling oven.

A device for cutting a length of pipe includes a clamp portion for clamping around a length of pipe and a bow moveable with respect to the clamp portion that retains a loop of diamond embedded wire. The device further includes a feed for driving the bow with respect to the clamp portion and a detector for detecting bending of the wire and a control responsive to the detector for controlling feed rates. The device is made of modular parts and has synchronizing arms for clamping around a length of pipe. In one embodiment, the wheels are retained in enclosures with slots through which the cutting wire passes.

A guide system for resecting a bone through incisions of the type utilized for arthroscopic procedures is provided. The guide system comprises a first alignment pin, a second alignment pin and a wire saw. The first alignment pin is configured to be inserted through a first incision into a bone in a first orientation. The second alignment pin is configured to inserted through a second incision into the bone in a second orientation. The first alignment pin and the second alignment pin are configured and oriented to define a resection plane of reference through which the bone is to be resected and the wire saw is configured to be inserted through the first and second incisions to be guided by the first and second alignment pins while being moved to resect the bone.

A superabrasive wire saw-wound structure includes a superabrasive wire saw (10) formed with an average diameter D and a reel (1). The superabrasive wire saw (10) includes a core wire (11), a bonding material (12) surrounding a surface of the core wire (11), and a plurality of superabrasive grains (13) bonded to the surface of the core wire (11) with the bonding material (12). The reel (1) includes a peripheral surface (2) having one end (3) and the other end (4). The superabrasive wire saw (10) which is to be unreeled successively toward a workpiece is wound around the peripheral surface (2) reciprocatingly between the one end (3) and the other end (4) to be multi-layered. A pitch P for winding the superabrasive wire saw (10) around the peripheral surface (2) between the one end (3) and the other end (4) satisfies a relation of D<P<2D. According to the present invention, there can be provided a superabrasive wire saw-wound structure, a cutting device with a superabrasive wire saw, and a method of winding a superabrasive wire saw which can reduce damage to a bonding material and falling of a superabrasive grain.

The invention relates to a wire saw for cutting hard and fragile materials and a manufacturing method thereof. The wire saw is fixed with an grinding material on a core wire through a bonding agent and is characterized in that the bonding agent consists of an inner layer UV resin bonding agent and an outer layer heat reactive resin bonding agent; and the grinding material is evenly and continuously distributed in a monolayer mode around the core wire, partial grinding material is embedded in the UV resin bonding agent, other partial grinding material is exposed outside the heat reactive resin bonding agent to form an exit lip, and the rest part is enwrapped by the outer layer heat reactive resin. The grinding material adopts a diamond or CBN adopting surface metal plating; and the core wire adopts a copperized music wire. The manufacturing method is performed continuously and quickly according to the following steps: under the traction of a driving device, setting out the core wire continuously through a wire plate, surface preparation, cleaning, drying, coating with the inner layer UV resin bonding agent, grinding material cementation, UV curing, coating with the outer layer heat reactive resin bonding agent, thermocuring and drawing in a cable to form a plate. The wire saw and the method solve the problem of driving aspects before cured resin is completely cured, and can effectively solve the problem that the grinding material in the prior art is easy to agglomerate.

The invention relates to a diamond wire saw production method of a surface modified diamond, which comprises the following steps: 1. removing surface grease and surface metal oxides on the surface of the diamond; 2. placing diamond micropowder into a cationic surfactant solution, applying positive potential and forming a layer of positive charge film on the surface of the diamond under the electrophoretic action by action of a cationic surfactant; and 3. carrying out composite electroplating of a diamond wire saw. In the invention, conductive processing is carried out on the diamond, so that diamond grains can orderly move in a plating solution under the action of an electric field to realize the electroplating deposition on the surface of a metal wire without the influence of the size of the diamond grains; the surfactant is adsorbed on the surface of the diamond, so that a plating layer and the diamond present an infiltrative type interface, and a Ni plating layer has strong holding capability on the diamond; and the diamond micropowder has high utilization ratio. The invention has simple process method and convenient operation, the diamond grains have rapid deposition speed, good deposition uniformity and high deposition density on the metal wire, an electroplating layer has high holding force on the diamond grains, and the diamond micropowder has high utilization ratio. The invention can realize industrialized production and provides a method for efficiently and rapidly producing the diamond wire saw.

A wire saw (10) for simultaneously slicing multiple, generally cylindrical monocrystalline ingots (14) into wafers. The wire saw includes a cutting head (16), an ingot support (12), and multiple generally parallel lengths of cutting wire (18) defining a cutting web (30). A slurry delivery system includes nozzles (34, 36, and 38) positioned for dispensing slurry along the wire web generally at lateral sides of each ingot. A process for simultaneously slicing at least two generally cylindrical semiconductor ingots into wafers includes mounting at least two ingots to a common ingot support, moving the ingot support relative to the cutting web so that the two ingots simultaneously press against the cutting web at cutting regions, and dispensing a liquid slurry to at least three locations on the wire web including two outermost sides of the cutting regions and a location between each pair of ingots.

The present invention relates to a wire saw and a method for fabricating the same. The method for fabricating a wire saw according to the present invention includes: providing a core wire; coating an intermediate layer over the core wire, and embedding a plurality of abrasives in the intermediate layer; and plating a metal protective layer over the abrasives. Accordingly, the present invention can resolve the conventional problem of abrasives in the plating bath aggregating during electroplating deposition, so as to enhance cutting quality and precision.

A method and apparatus for diamond wire cutting of metal structures, such as nuclear reactor vessels, is provided. A diamond wire saw having a plurality of diamond beads with beveled or chamfered edges is provided for sawing into the walls of the metal structure. The diamond wire is guided by a plurality of support structures allowing for a multitude of different cuts. The diamond wire is cleaned and cooled by CO₂ during the cutting process to prevent breakage of the wire and provide efficient cutting. Concrete can be provided within the metal structure to enhance cutting efficiency and reduce airborne contaminants. The invention can be remotely controlled to reduce exposure of workers to radioactivity and other hazards.

The super-abrasive grain fixed type wire saw is equipped with two layers consisting of a brazing material layer (13) and a metal plating layer (16), the aforementioned brazing material layer (13) serving to temporarily fix super-abrasive grains (14), and the aforementioned metal plating layer (16) serving to hold the super-abrasive grains (14). The thickness of the brazing material layer (13) is 10% or less of the average grain diameter of the super-abrasive grains (14). The brazing material layer (13) is formed on the surface of a wire (10) in advance. The super-abrasive grains (14) are dispersed and adhered in a single layer onto the brazing material layer (13). Subsequently, the surface of the brazing material layer (13) is melted and solidified, resulting in a super-abrasive-grains-temporarily-adhered wire (12) such that super-abrasive grains (14) are joined to the adhesion surface of the brazing material layer (13). Thereafter, the super-abrasive-grains-temporarily-adhered wire (12) is metal-plated.

Slurry useful for wire-saw slicing has viscosity adjusted to 400-700 mPa.second at a shear speed of 2/second and of 50-300 mPa.second at a shear speed of 380/second. The viscosity of slurry is measured using a cone and plate type viscometer which can measure viscosity at different shear speeds. Since the slurry sufficiently flows into inner parts of grooves formed in an ingot and consumed for wire-saw slicing due to the viscosity controlled in response to the shear speed, the ingot can be efficiently sliced to wafers or discs.

The invention relates to a sand feeding method for a diamond wire saw. The method comprises the following steps of: (1) preparing a diamond electroplating solution, wherein each litre of the electroplating solution comprises 10-20g of diamond, 100-240g of NiSO4, 40-100g of NiCl2, 10-50g of CoSO4 and 40-80g of H2BO3; (2) adding the electroplating solution to a sand feeding tower, wherein the sand feeding tower is in the shape of a column or polygon and is arranged vertically, and 2 to 8 Ni anodes are uniformly arranged on the inner wall of the sand feeding tower; and (3) making a bare metal wire penetrate into the bottom of the sand feeding tower and out of the tower top at a speed of 2-8 m/min; by adopting the bare metal wire as the cathode and Ni as the anode during the penetration of the bare metal wire, applying DC (Direct current) and plating diamond on the bare metal wire. The diamonds on the diamond wire saw prepared by the invention are uniformly distributed and are not accumulated.

The invention provides a preparation method and the product of a metal binder diamond wire saw, comprising the preparation steps of (1) steel wire surface, (2) plating auxiliary disposal of the steel wire, (3) burdening, (4) plating of steel wire and (5) post-processing. The thickness of the binder coating ranges from 1/2 to 2/3 of the grain diameter of the diamond. By a series of chemical and diffusion reaction, the surface of the steel wire is covered by a layer of uniform and firm coating 3; a diamond mill grain 2 is also uniformly held in a metal binding layer 1, thus achieving the cutting object.

In a cutting method by a wire saw, in which a wire A at a wire array wound around work rollers 10 is made to reciprocate or travel in one direction at a high speed and numerous pieces of wafers are cut out in abutment of a workpiece B against the wire array, a receiving member 27 of a cassette type having numerous support wires 34 arranged at the same pitch as that of the wire at the wire array is disposed at a position immediately under the wire array for cutting the workpiece B; and wafers b cut out of the workpiece B by the wire A are contained in separation one from another between the support wires 34 in the receiving member 27. Thus, the wafers can be prevented from adhering to each other during a cutting operation, thus to be accurately cut, and further, the wafers can be prevented from being cracked during the cutting operation, thus to be efficiently separated one from another, so as to enhance wafer cleansing performance.

The invention provides a method for mining coal of a steeply inclined thin seam on the basis of learning from a long-hole blasting coal mining method and a wire saw coal mining method, which is a long-hole blasting and wire saw coal mining method and relates to underground coal mining. The method comprises the following steps: long boreholes are arranged in a direction which is parallel to the cross pitch of the coal seam for coal blasting; after finishing blasting a work surface, making the coal slip out from a section coal bin and loading the coal for outward transport through a haulage drift; and when blasting to the vicinity of a tailgate through the long boreholes, stopping the blasting and utilizing a wire saw to mine remaining coal. The method has the advantages of no work surface support, rational tunnel arrangement, simple ventilation management, the capacity of realizing unmanned work surface mining, low cost, strong security, high coal mining rate, low worker labor intensity, good social and economic benefits and the like.

The invention discloses an electroplating diamond fretsaw with grinding materials controllably distributed and a preparation method. The electroplating diamond fretsaw is composed of a steel wire base body and diamond grinding materials, and is characterized in that the diamond grinding materials on the fretsaw are electrically deposited on a surface of the steel wire base body according to a pre-arranged shape, and a chip removal groove is formed on a none-deposited-diamond surface of the grinding materials. The preparation method comprises the following critical steps: region selection and coating processing are conducted on the surface of the steel wire base body, and a reserved none-grinding-material surface of the steel wire base body is coated with a pre-arranged shape; sand-feeding process is conducted on surfaces of the steel wire base body, the steel wire base body enters an electroplating groove, and the diamond grinding materials are electrically deposited on an uncoated region of the base body; and coating removal processing is conducted on the surface of the steel wire base body, the steel wire base body enters a coating removal groove to remove the coating, and manufacturing of the diamond fretsaw is finished. The electroplating diamond fretsaw with the grinding materials controllably distributed and the preparation method have the advantages of being high in cutting efficiency, long in service life and the like.

The present invention provides cutting methods and cutting apparatus that can precisely cut workpieces in complicated shapes with high aspect ratios regardless of materials of the workpieces. The present invention is cutting methods and cutting apparatus using a wire saw wherein cutting processing is performed for a workpiece by extending a cutting wire on a cutting arm that rotates around a wire's center axis or a real cutting position relative to a fixed section and rotating the cutting arm such that a cutting direction of the wire matches a support direction of a total stiffness that supports the wire.