Abstract: The invention relates to a sawing tool comprising a substantially disk-shaped support (1) from which a plurality of tooth inserts (4) project which are juxtaposed along a supporting edge (3) and have at least one sawtooth (12) each with at least one tooth rear (12) and at least one blade (9). The tooth inserts (4) are connected to the support (1) in a position-stable manner even when the sawing tool is operated. The supporting edge (3), in its cross-section perpendicular to the plane of the disk, has a rooflike shape and the tooth inserts (4) have a mounting (8) configured as a rooflike recess mating the roof shape of the supporting edge (3). Recesses (13) and/or bulges are arranged along the supporting edge (3) and are associated with corresponding bulges (14) and/or recesses on the interior of the mounting (8) of a tooth insert (4) and the bulges (14) fit into the corresponding recesses (13) in a form-fit manner.

Abstract: A saw blade including a base and a plurality of teeth extending generally outwardly from the base. At least one of the plurality of teeth comprises a first and a second portion. The first portion includes a cutting tip having an initial rake angle and the second portion includes a cutting tip having a second rake angle greater than the initial rake angle. The second portion is disposed closer to the base than the first portion.

Abstract: A blade comprises a strip having a main body portion and an edge portion. Cutting medium in the form of a diamond grit is secured to the strip by braze material. The edge portion is thinner than the main body portion.

Abstract: A saw blade insert (12) comprises a body (12?) of hard material. The body (12?) is fixable to an edge of a gullet of a saw blade. The insert (12) has a concave surface profile (23) which, in use, is forward facing relative to the cutting direction of the saw blade. The profile (23) can be curved or angular such as a shallow “U” shape with flat surfaces (43) which extend inwardly from sides (22) to a central longitudinal floor (44).

Abstract: Embodiments provide various saw chain links which may be combined to form a utility saw chain. In various other embodiments, cutting system fixtures are disclosed which may facilitate the cutting of pipes and other materials from an axis point.

Abstract: The invention relates to a circular saw blade comprising a support body (1) and a plurality of cutting teeth (2) distributed over the circumference, in which the support body (1) has a plurality of material recesses (3) that in some areas have clearing edges (4) that project axially beyond the support body (1), which is characterized in that the clearing edges (4) are embodied in one piece with the support body (1).

Abstract: A reciprocating saw blade has a body with two ends and two edges. The first end is a shanking end to secure the blade with a reciprocating saw. The second end is a plunging end to enter into a workpiece. The first edge has a plurality of teeth and gullets. A second edge opposes the first edge. The plurality of teeth has a first tooth immediately adjacent the plunging end. The first tooth is a full tooth and is also a raker or unset tooth. The first gullet adjacent the first tooth has a size at least 1.5 times the gullet size of the remainder of the plurality of gullets.

Abstract: Disclosed is a method for producing a bimetallic saw blade, saw band, or circular saw blade. According to said method, a support band (11) or a support disk made of a first metal is bonded to cutting material (16) made of a second metal in a first step, and said bond is machined in a material-removing manner so as to form a toothed profile (17a, b) in a second step, thus creating saw teeth that are at least partially made of the cutting material (16) by separating the teeth in a predetermined fashion.

Abstract: The present invention relates to a method for manufacturing of preforms (15, 25) for saw blades respectively saw bands, comprising the following steps (a) arranging a strip (30) of a cutting material for a cutting edge of saw blades respectively saw bands without any play between the edges (12, 22) of a first carrier band (10) and a second carrier band (20); (b) guiding of a laser or electron beam (40) along a first edge (32) of the strip (30) for welding part per part of the first carrier band (10) to the strip (30), wherein regions (36) along the first edge (32) of the strip (30) remain unwelded; (c) guiding of a laser or electron beam (40) along a second edge (34) of the strip (30) for welding part per part of the second carrier band (20) to the strip (30), wherein regions (36) along the second edge (34) of the strip (30) remain unwelded; and (d) guiding a laser, water or electron beam (50) between the first edge (32) and the second edge (34) of the strip (30) or the second edge (34) and the first edge (32

Abstract: A blade 1 comprises a strip 2 having a main body portion 4 and an edge portion 6. Cutting medium 8 in the form of a grit is secured to the strip 2 by braze material. The grit may be diamond, tungsten carbide, cubic boron nitride, a ceramic material, a ceramic-based material or a cermet material. The edge portion 16 is thinner than the main body portion 14.

Abstract: A saw blade (4) for a machine operating with adjacent saw teeth traveling in two opposite and parallel directions comprises a blade substrate, teeth (16), and tooth necks (30) formed at the periphery of the substrate for holding the teeth (16) in place. Each tooth neck (30) has a protection surface (34), which is located in a plane that is parallel to the plane of the blade substrate (8), for protecting the tooth (16) against impact with any part of said adjacent saw blade. Each tooth (16) is located on the respective neck (30) in such a way that the tooth (16) is displaced from the protection surface (34) and from the adjacent saw blade in a direction normal to the plane of the protection surface (34).

Abstract: An arcuate action tool attachment is adapted to receive an input and to convert that input into reciprocating output motion along an arcuate path. The tool may be adapted to be combined with an existing linear reciprocating device or a rotary device, or the tool may comprise a single unit including a linear reciprocating device or a rotary device. The tool may be fitted with one or more curved or arc-shaped accessories, such as saw blades or the like, that reciprocate along the arcuate paths that may have substantially the same radius of curvature as the accessory.

Abstract: A saw band of steel for a band saw machine with a band back (Br) and with a tooth row attached thereon comprises several teeth (20), wherein the initial tooth form (10) is triangular with a tooth base with tooth width (b) and with the tooth tip (1) with a first tooth height (h1), such that the tooth tip (1) does not project beyond tooth width (b) in the band running direction (L), wherein the lateral side of the triangle located in front in the running direction (L) forms the rake face (2) and the rear lateral side forms the clearance face (3) of the tooth (10, 20). The tooth tip (1) of the triangle is specifically removed [of material] for the development of a rounded-off tooth crest (4) with a reduced second tooth height (h2), wherein at least in the proximity of the tooth crest (4) a hard material coating covers at least partially the cutting face formed of the tooth crest (4), the rake face (2) and the clearance face (3).

Abstract: A composite metal article from two dissimilar metals is prepared. A metal base is comprised of a first metal and having first and second opposing surfaces and a least one longitudinally-positioned depression in each of the first and second opposing surfaces for receiving a wire. An elongated metal element comprised of a second metal is introduced into each of the at least one first and second depressions of the metal base to form a composite assembly, and the composite assembly is heated under pressure to urge the adjacent surfaces of the second metal elements and the depressions together to form a bonded article.

Abstract: A rotating cutting apparatus comprising a cutting blade holder with at least one hole on the outside diameter of the cutting blade holder into which cutting blades are inserted and bonded to the cutting blade holder. The cutting blade holder encloses a center hole, so that the rotating cutting apparatus can be mounted to a drive shaft of machinery or secured to a cup that can be mounted to the drive shaft of machinery and driven by the machinery. The cutting blade holder can be made of a less expensive material, with only the cutting blade being made of higher-grade materials that maintains its cutting edge well. Additionally, in some arrangements of the present invention, the cutting blade may be sharpened on two sides so that the rotating cutting apparatus can be used for longer periods of time.

Abstract: A saw blade (15) includes a body (16) and a plurality of teeth (1). The teeth (1) include a cutting portion (2) of a geometrically defined shape and including a cutting edge (3). The cutting portion (2) includes a wearing protection layer (7) which covers the cutting edge (3). The cutting edge (3) has an edge radius (4) between approximately 0.005 mm and 0.045 mm relating to a condition of the cutting portion (2) without the wearing protection layer (7). Preferably, the wearing protection layer (7) is made of a hard material, especially TiN, TiCN, TiAlN, CrN or DLC.

Abstract: A reciprocating saw has a tooth form that decreases the cutting time of the saw blade and extends the life of the saw blade. The tooth height is longer than conventional metal cutting reciprocating saws. Also, the tooth form has a larger gullet. The tooth rake angle remains substantially constant during the life of the saw blade.

Abstract: A method for manufacturing a handsaw capable of cutting a glass bottle. The method includes cutting a steel strip to a predetermined length to form a handsaw substrate. A portion of the handsaw substrate, other than a cutter blade forming portion formed on at least one edge of the handsaw substrate in a widthwise direction is masked. A hard abrasive is applied onto the portion of the handsaw substrate other than the masked portion. The handsaw substrate, to which the hard abrasive has been applied, is dipped in an electrolytic solution tank to deposit a metal layer in which the hard abrasive is embedded.

Abstract: A bimetal saw band which is suitable for cutting materials of high hardness and wear resistance at high cutting speeds and with a reduced consumption of coolant is disclosed. The saw band includes a support band with from 0.20 to 0.45% of carbon, from 0.2 to 0.6% of silicon, from 0.5 to 1.8% of manganese, from 0.1 to 3.5% of molybdenum, from 1.0 to 5.0% of chromium, from 0.5 to 1.5% of nickel, from 0.1 to 1.0% of copper, from 0.1 to 2.0% of tungsten, from 0.1 to 0.5% of vanadium, from 0.01 to 0.30% of niobium and/or tantalum and less than 0.2% of cobalt, and the remainder iron including melting-related impurities, with the tungsten, vanadium and niobium/tantalum contents matched to one another. The saw includes hardmetal tips including at least 75% of tungsten carbide and 5 to 15% of cobalt, as well as grain stabilizers with a grain size of less than 5 ?m.

Abstract: A rotating cutting apparatus comprising a cutting blade holder with at least one hole on the outside diameter of the cutting blade holder into which cutting blades are inserted and bonded to the cutting blade holder. The cutting blade holder encloses a center hole, so that the rotating cutting apparatus can be mounted to a drive shaft of machinery or secured to a cup that can be mounted to the drive shaft of machinery and driven by the machinery. The cutting blade holder can be made of a less expensive material, with only the cutting blade being made of higher-grade materials that maintains its cutting edge well. Additionally, in some arrangements of the present invention, the cutting blade may be sharpened on two sides so that the rotating cutting apparatus can be used for longer periods of time.

Abstract: A bandsaw blade includes a blade beam carrying a plurality of cutting teeth separated by gullets. A clearance angle of the teeth is smaller than 35°, and the back of a leading tooth has a convex transition to a gullet. The radius of the gullet is larger than ½ of the depth of the gullet.

Abstract: A saw blade is formed from a blank which has an edge. Inserts, such as tungsten carbide are inserted in apertures in the blank and a finishing cut is then made along the line to produce a series of teeth, each having a point within the body of the insert, and thus formed by the relatively hard material of the insert. Fingers of the inserts provide a root which holds the insert in position during use.

Abstract: In the manufacture of a link plate for a silent chain, a band of sheet steel is intermittently forwarded to string of punching dies and shaving dies. The band tends to follow a slightly curved path, which causes alignment errors in a conventional punching and shaving operation. However, in this case, each shaving die and its corresponding punching die are disposed in symmetrical relationship with respect to an intermediate position along the path of movement of the band, and the intermediate position coincides with the location at which the deviation of the band. As a result, the shaving dies are more accurately aligned with the punched surfaces produced by the corresponding punching dies.

Abstract: A diamond cutter 7 constituted by a cutter base plate 5 having a curved surface 3 by drawing molding a steel sheet metal material is provided. The cutter base plate 5 is obtained by preparing an original plate having an axial hole 2 and a circular outer shape from the steel sheet metal material, next spinning drawing or press molding, and forming the curved surface being 3 wholly point symmetrical about the axial hole 2 between the axial hole 2 and the outer shape 1.

Abstract: A composite tool comprising a supporting part of a metallic material having a first composition and a working part of a metallic material having a second composition which is different from the first composition, a process for the manufacture thereof and a method of cutting an austentic alloy article with this composite tool. The supporting part of the composite tool is made of a tenacious iron-based material, and the working part is made of a precipitation harden iron-cobalt-tungsten alloy. The parts are joined by a metallic connection.

Abstract: The invention relates to a process for producing a cutting tool, in particular saws, cutting rules or cutting dies, comprising a carrier material (1) in strip or disk form, to whose edge, which is substantially standing on end, a cutting-edge region (2) in the form of a pulverulent alloy is applied and melted during the application, preferably by means of a laser beam, and then solidifies on the edge.

Abstract: In installations for truing up band blades, band-saw blades must be precisely measured, in order to be trued up accurately. The band-saw blade to be trued runs over two deviation stations and is trued up in the upper linear guide area. The invention provides a saw-band guide section in order to measure the pre-tension in the saw blade which creates the desired bowing. The saw-band guide section is formed by two parallel guide bearers, each of which is subdivided into two sub-bearer sections. The band-saw blade is guided on bearing rollers between the guide bearers and guided by dead rolls which are mounted on pivoting carriages into a curve which corresponds to a clothoid arc. A measurement carried out by a measuring bar comprising sensors provides an extremely accurate, constant result in an area practically devoid of stress.

Abstract: A device mountable onto the head of a torque wrench for testing the braze strength of replaceable kerf or saw tips (referred to inter-changeably herein), the device includes a clamp supporting member for clamped mounting, at a first end thereof, to a braze-on saw tip brazed to a saw blade tooth, and for mounting, at an opposite second end of the member, to the head of the torque wrench. A clamp, for rigidly clamping the braze-on saw tip between opposed facing jaws of the clamp, is mounted to the clamp supporting member so as to orient the jaws on opposite sides of an axis of rotation of the head of the torque wrench when the head is mounted to the second end of the member.

Abstract: Supply stock and process for producing the supply stock for a saw member that comprises at least a carrier part made of one material and at least a blade part made from a different material. The process comprises welding the carrier part to the blade part to form the supply stock having a thickness defined by a first and a second surface, forming a welding bead in an area where the carrier part is welded to the blade part, the welding bead having a projecting portion which projects beyond at least one of the first and the second surface, and removing material from at least a portion of at least one of the first and the second surface.

Abstract: A starting material for the production of a saw band which comprises saw teeth with tooth tips of hard, wear-resistant material and a process for the production thereof. The starting material comprises a steel band which carries on the face side thereof individual parts of cutting material which correspond to the tooth tips of the saw band. This abstract is neither intended to define the present invention disclosed in this specification nor intended to limit the scope in any way.

Abstract: A method for forming a tool having a smooth surface finish is disclosed. The method involves the step of first rotating a plurality of tools within an inner vessel at high speed relative to the outer vessel with a first abrasive. The first abrasive is then removed and a second abrasive is added to the vessel. The inner vessel is then rotated, again at high speed, with the second abrasive. The resulting tools have reduced surface anomalies.

Abstract: A saw blade is formed from a blank which has an edge (14). Inserts (22), such as tungsten carbide are inserted in apertures in the blank and a finishing cut is then made along then made along the lien (40) to produce a series of teeth at (44), each having a point (46) within the body of the insert (22), and thus formed by the relatively hard material of the insert (22). Fingers (26) of the inserts (22) provide a root which holds the insert in position during use.

Abstract: A band saw includes a continuous saw body and multiple saw teeth provided on an edge portion of said saw body entirely. The edge portion of the saw body and the saw teeth are angled toward an inner side of the saw body by creating a bend near a tooth base line of the saw body. A band saw processing method and a method of manufacturing the band saw are also disclosed.

Abstract: Process for manufacturing a circular saw blade and a saw blade obtainable by the process. At least two congruent metal blades of an iron-based alloy are glued together and the inner and outer lateral surfaces thereof are treated to provide roughness values within certain limits.

Abstract: An improved chop saw may include a base assembly, a blade assembly including a blade having a center and a motor for driving the blade, an arm pivotally attached to the base assembly and carrying the blade assembly, the blade assembly being movable between a lower position for engaging and cutting a workpiece disposed on the base, and an upper position not engaging the workpiece. The chop saw further includes a vise for holding the workpiece in place, the vise including a vise screw, a latch support supporting the vise screw, and a vise jaw disposed at the end of the vise screw. Preferably, the maximum distance between the vise jaw and the latch support is about equal or shorter than the distance between the blade center and the latch support, when the blade assembly is at the lower position. Further the chop saw includes a substantially horizontal handle connected to the blade assembly.

Abstract: An improved chop saw may include a base assembly, a blade assembly including a blade having a center and a motor for driving the blade, an arm pivotally attached to the base assembly and carrying the blade assembly, the blade assembly being movable between a lower position for engaging and cutting a workpiece disposed on the base, and an upper position not engaging the workpiece. The chop saw further includes a vise for holding the workpiece in place, the vise including a vise screw, a latch support supporting the vise screw, and a vise jaw disposed at the end of the vise screw. Preferably, the maximum distance between the vise jaw and the latch support is about equal or shorter than the distance between the blade center and the latch support, when the blade assembly is at the lower position. Further the chop saw includes a substantially horizontal handle connected to the blade assembly.

Abstract: The present invention is a method of producing chainsaw chain allowing to increase the effectiveness of the woodcutter in modifying the cutter links and some safety links.

Abstract: A diamond cutter 7 constituted by a cutter base plate 5 having a curved surface 3 by drawing molding a steel sheet metal material is provided. The cutter base plate 5 is obtained by preparing an original plate having an axial hole 2 and a circular outer shape from the steel sheet metal material, next spinning drawing or press molding, and forming the curved surface being 3 whollypoint symmetrical about the axial hole 2 between the axial hole 2 and the outer shape 1.

Abstract: A process for making a cutting instrument includes cutting a blank from a plate or strip of Type 60 Nitinol, having a thickness of between 0.005″-0.500″ using an abrasive waterjet, wire electron discharge machining or laser cutting, and grinding top and bottom surfaces of the blank by rotating a grinder having cubic boron nitride or diamond abrasive particles on a cutting surface of said grinder against the knife blank at a surface speed of about 5000 to 7000 surface feet per minute and grinding to a depth of about 0.001 to 0.005 inches per pass to remove material along the blade surface. The surface of the blade is polished to a surface finish smoother than 20 microinches RMS using Turkish emery abrasive grinding/polishing materials on a buffing wheel driven by a high power motor. The blade is then finish polished to a mirror-like luster of 2 microinches RMS or less using a fine diamond buffing compound and a buffing wheel running at about 3000 RPM.

Abstract: Toothed cutting blades are made by forming spaced slots in an edge of a blade preform (20) to leave lands (8) between leading and trailing walls (4, 6) defining the slots, the leading walls (4) having a rake angle greater than that required in the finished blade, and the lands having aligned top surfaces between the slots, and then applying bending forces to the lands (8) so as to reduce the rake angle of the front walls to that desired and incline the top surfaces to form positively raked teeth with inclined back surfaces (32). The lands may be bent by tools inserted in the slots, or by compressing their material between punches applied adjacent their front walls.

Abstract: In order to obtain a simple, inexpensive and low-maintenance monitoring device for controlling the setting width of individual teeth of saw blades or belt-saw blades, in particular for controlling the setting result of a setting machine the present invention invisages that the monitoring device comprises at least one photo-detector whose light beam at least partly runs through one or both regions laterally next to the running-past saw blade or belt-saw blade, into said regions the set teeth project.

Abstract: A saw blade includes a blade body which defines a first side surface and a second side surface, wherein (i) the blade body has a multiplicity of discrete dimples formed on at least one of the side surfaces, (ii) the blade body is made of metal, and (iii) each of the multiplicity of dimples is formed by a process which includes the step of deforming the metal so as to create an indentation in the side surface in which the dimple is formed. The saw blade further includes a plurality of cutting teeth extending from an edge of the blade body. Moreover, the deforming step includes the step of deforming the metal with pins on a die plate of a punch press.

Abstract: Process for manufacturing a circular saw blade and a saw blade obtainable by the process. At least two congruent metal blades of an iron-based alloy are glued together and the inner and outer lateral surfaces thereof are treated to provide roughness values within certain limits.

Abstract: A method of making a saw blade includes the step of providing a metallic blade body that defines a first side surface and a second side surface. The method further includes the step of providing the metallic material blade body with cutting teeth at an edge thereof. The method also includes the step of forming a plurality of discrete dimples on at least one of the side surfaces. The forming step includes the step of deforming the metallic blade body with pins on a die plate of a punch press so as to create a plurality of indentations in the side surface in which the dimples are formed.

Abstract: Disclosed are cutting blades for cutting tools and methods of making the blades. Such blades include tooth patterns with both set and non-set teeth. Each of the set teeth are set at an angle with respect to the jaw line of the blade, and each set tooth includes at least one surface feature that is effective to direct a portion of swarf that is produced via the cutting action of the blade into gullets of the blade such that less swarf overall is directed to the cutting surface of the objects being cut by the blade.

Abstract: A new saw blade and a method of manufacturing such a saw blade are disclosed. The saw blade is made from a hardenable steel sheet in one piece and comprises a plain cutting blade from which a cranked mounting part, having a central mounting opening, protrudes. To manufacture such saw blades, blanks are cut out from a hardenable steel sheet and subsequently deep-drawn to provide the cranked mounting part. The mounting openings may be produced by stamping, thereafter. A plurality of such blanks is stacked over each other and clamped in a fixture, subsequently annealed for recrystallization and austenization and quenched thereafter, to harden the blanks. Finally, saw teeth are provided along the outer edges of the cutting blades.

Abstract: A method of manufacturing a tungsten carbide tipped circular saw blade (S) The method and blade are characterised by pressing a rib pattern (R) into the body of the blade (S). The rib pattern strengthens the blade body and avoids warping, particularly in thin blades, e.g. less than 1 mm thick.

Abstract: A saw blade is constituted with a unset tooth, a plurality of left-set teeth and a plurality of right-set teeth. In the construction, the saw blade has the unset tooth, a plurality of left-set teeth and a plurality of right-set teeth as one group. A plurality of set widths of the plurality of set teeth are formed in the saw blade. A relief angle of a tip of the unset tooth is equal to or greater than a relief angle of a tip of the set tooth having the smallest set width. Furthermore, the relief angle of a tip becomes small in accordance that the set width becomes greater.

Abstract: A saw blade has a plurality of teeth with each tooth formed by a beveled gullet forming a trailing face, a beveled gullet forming a leading face and a planar surface forming a curved cutting face. The gullets forming the trailing face and the leading face are beveled in opposite directions. The planar surface is generally parallel to the beveled trailing face. The unique tooth profile provides a saw tooth having a positive rake angle to significantly improve the strength of the tooth. The method of manufacturing of the unique tooth profile begins by orienting a saw blade blank about three axes and performing a first grinding operation which forms every other tooth gullet and every other planar surface. The partially formed blank is then oriented about two of the three axes in an opposite direction and a second grinding operation is performed. The second grinding operation grinds the remaining gullets and planar surfaces.

Abstract: A process for making a cutting instrument includes cutting a blank from a plate or strip of Type 60 Nitinol, having a thickness of between 0.005″-0.500″ using an abrasive waterjet, wire electron discharge machining or laser cutting, and grinding top and bottom surfaces of the blank by rotating a grinder having cubic boron nitride or diamond abrasive particles on a cutting surface of said grinder against the knife blank at a surface speed of about 5000 to 7000 surface feet per minute and grinding to a depth of about 0.001 to 0.005 inches per pass to remove material along the blade surface. The surface of the blade is polished to a surface finish smoother than 20 microinches RMS using Turkish emery abrasive grinding/polishing materials on a buffing wheel driven by a high power motor. The blade is then finish polished to a mirror-like luster of 2 microinches RMS or less using a fine diamond buffing compound and a buffing wheel running at about 3000 RPM.