1712results about "Metal sawing tools" patented technology

A cutting saw blade for use with an oscillatory power tool used in surgical bone cutting procedures including a blade having a distal end provided with teeth whose tips are located on a tangent line perpendicular to the long axis of the blade. The teeth are configured substantially as right triangles with their hypotenuses facing either towards the center of the blade or away from the center of the blade. A central tooth can be optionally provided.

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.

A wood-cutting band saw blade includes a cutting edge defined by a plurality of teeth spaced relative to each other, wherein each tooth includes a tip; a rake face formed on one side of the tip; a primary clearance surface formed on an opposite side of the tip relative to the rake face; a secondary clearance surface formed on an opposite side of the primary clearance surface relative to the tip; a tertiary clearance surface formed on an opposite side of the secondary clearance surface relative to the primary clearance surface; and a gullet located on an opposite side of the rake face relative to the tip and defining a depth (D) between a base surface of the gullet and the tip. Each tooth further defines a first gullet radius (R1) located between the gullet and tertiary clearance surface; a second gullet radius (R2) extending between a base surface of the gullet and the rake face; and a pitch (P) between the respective tooth and a preceding tooth in a cutting direction of the saw blade. In each tooth, R2>D>R1, D/P is within the range of about 25% to about 35% and R2/R1≧about 1.4. R1 defines a minimum radius (R_min) at a base of the gullet and R_min/D>about 20%.

A saw blade having blade body supporting a leading cutting edge for cutting through a workpiece. A force and motion are applied to drive the cutting edge against the work piece as the body of the saw blade is driven with a reciprocating, rotational or linear motion transverse to the applied direction of the force. The solid rectangular cross section of a saw blade is modified to improve its ability to cut through a workpiece. The body of the blade is characerized as having cut out areas distributed throughout the blade body to capture and remove the debris from the kerf. This improved cutting performance can be further enhanced by reducing the cross section of the body. Secondary cutting edges may also be incorporated around the perimeter of the cutouts and as part of the reduced geometry portion of the blade body.

Superabrasive tools and methods for the making thereof are disclosed and described. In one aspect, superabrasive particles are chemically bonded to a matrix support material according to a predetermined pattern by a braze alloy. The brazing alloy may be provided as a powder, thin sheet, or sheet of amorphous alloy. A template having a plurality of apertures arranged in a predetermined pattern may be used to place the superabrasive particles on a given substrate or matrix support material.

The present invention provides a combination utility retractable saw and knife device that comprises a handle member having a predetermined configuration and a knife blade disposed within a cavity formed in the handle member when in a retracted position. The knife blade member has a predetermined configuration. It further includes a saw blade disposed within a radially opposed cavity of such handle member when in a retracted position. Such combination device further includes a means engageable with the saw blade for connecting it with the handle and a means engageable with the knife blade for connecting it with the handle. There is also a means engageable with the saw blade for at least one of slidably moving and pivotably rotating the saw blade to an operable position, the means being at least partially disposed within the handle and a means engageable with the knife blade for slidably moving the knife blade member to an operable position, such means also being at least partially disposed within the handle. There is further a means engageable with the saw blade and the handle for locking the saw blade in an operable position and in a retracted position, such means being at least partially disposed within the handle and a means engageable with the knife blade and the handle for locking the knife blade in an operable and a retracted position, such means being at least partially disposed within said handle member.

A reciprocating saw blade, for use in a portable power reciprocating saw including a chuck for releasably engaging the saw blade, includes a tang having an elongated axis and being engageable with the chuck for attaching the saw blade to the reciprocating saw. The saw further includes a blade portion having a cutting edge that defines a plurality of cutting teeth. The cutting teeth define a repeating pattern of successive groups of teeth. Each group of teeth is less than about a half inch in length, and includes a plurality of laterally offset teeth, at least one relatively high first tooth and at least one relatively low second tooth. Prior to tooth set, the at least one relatively high first tooth is at least about 0.002 inch higher than the at least one relatively low second tooth.

A construction saw blade having pluralities of cutting teeth along upper and lower edge surfaces thereof, an aperture transversely extending through the blade adjacent its rearwardly facing back end of a configuration and dimension to receive a fastener to removably secure the blade to a reciprocating saw for use, and wherein each plurality of cutting teeth include rake angles for cutting substantially only on a pull stroke of the reciprocating saw.

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.

Sharp-edged cutting tools and a method of manufacturing sharp-edged cutting tools wherein at least a portion of the sharp-edged cutting tool is formed from a bulk amorphous alloy material are provided.

A working component for mating with multiple shaft ends includes a body portion and a clamping portion which is connected to the body portion and suitable for mounting the working component to the shaft ends. The body portion has a work piece processing area for acting on the work piece to be processed and the clamping portion has a mounting hole with a longitudinal axis Y. The clamping portion includes a support portion and a mating portion which are overlapped along the direction of the longitudinal axis Y.

A pruning saw includes an elongated sawblade which has a line of cutting teeth. Opposite sides of the blade extending between the line of teeth and the back edge are concave. A thinnest waist between the concave sides is located closer to the line of teeth than to the back where the blade has its maximum height. A front edge of the blade forms a rounded corner where it intersects the back edge.

A saw blade for medical, in particular surgical, applications having a recess for mounting the saw blade inside a saw which exerts an saw movement, especially an oscillating saw movement, to the saw blade. In order to improve the dynamic behavior of the saw blade, longitudinal flat areas of a surface of the saw blade are provided with a plurality of superficial impressions of a defined contour that are aligned at an angle to the longitudinal axis of the saw blade.

A reciprocating saw blade has a first end with a first tang and a second end with a second tang. The first and second tangs are alternatively engageable with the chuck of a reciprocating saw. The reciprocating saw blade defines a substantially uniform cutting edge extending from approximately the first end to approximately the second end of the blade. The first tang is engageable with the chuck of the reciprocating saw for fixedly securing the first end of the blade to the reciprocating saw and forming with the second tang the free end of the saw blade. Alternatively, the second tang is engageable with the chuck of the reciprocating saw for fixedly securing the second end of the blade to the reciprocating saw and forming with the first tang the free end of the reciprocating saw blade drivable in a reciprocating motion by the reciprocating saw.

The present invention relates to a diamond tool and a method of manufacturing the same, wherein multiple abrasive layers are formed through a brazing or electroplating method, thereby improving the performance and service life of the tool. According to the method of the present invention, a plurality of concave portions are formed in a surface of the shank. A bonding paste is coated into the concave portions and abrasives are dispersed in the bonding paste to thereby form a lower abrasive layer. Again, a bonding material is coated on the lower abrasive layer and abrasives are dispersed in the bonding material to thereby form an upper abrasive layer. Then, a heat treatment is executed to fusion-bond the bonding material and abrasives onto the surface of the shank. Therefore, the diamond tools manufactured through a multiple brazing or electroplating method according to the invention can significantly extend the service life thereof, which has been a detrimental weakness of the conventional diamond tools having a single abrasive layer, in spite of various advantages of the brazing and electroplating methods. Furthermore, multiple abrasive layers can be formed inside the concave portions having a desired spacing, width and depth, thereby significantly improving the service life and the cutting performance of diamond tools.

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.

Methods, wires, and apparatus for use in cutting (e.g., slicing) hard, brittle materials is provided. The wire can be a super-abrasive wire that includes a wire core and super-abrasive particles bonded to the wire core via a metal bonding layer. This wire, or another type of wire, can be used to slice workpieces useful for producing wafers. The workpieces can be aligned within a holder to produce wafers using the device and methods presently provided. The holder rotates about its central axis, which translates to workpieces moving in orbit around this axis. A single abrasive wire, or multiple turns of wire stretched tightly between wire guides, is then contacted with the rotating holder to slice the workpieces.

A surgical saw blade operatively couples to an oscillatory power tool for oscillation about an oscillation axis (OA). The saw blade includes a plurality of cutting teeth separated from one another by a clean out opening along a distal end. The clean out opening comprises an arcuate closed end and straight side walls extending from the closed end. Each tooth comprises first and second rake surfaces and first and second relief surfaces intersecting to define first and second cutting edges, respectively. The first and second cutting edges are oppositely disposed from one another. One cutting tooth protrudes a distance (de) from one side face of the blade and the next adjacent cutting tooth protrudes the same distance (de) from the other side face of the blade to cut a groove having a width (dg) wider than the thickness (t) of the blade.