Abstract: This invention provides a new and more efficient drive system for a circular saw blade. The invention is comprised of a circular saw blade with a ring gear built into the blade. It is driven by a matching pinion gear. The invention provides a means to employ the typical cutting capabilities of a circular saw blade but with certain unique advantages. The ring and pinion drive allows for better balance in that the motor that drives the saw blade can be located at the rear of the saw blade, as opposed to the side of the blade as it is with conventional circular saws. This configuration also allows for greater cutting depth. The ring and pinion drive also allows for a smaller motor and a resulting lower cutting speed that, in turn, cuts down on dust emission.

Abstract: A protrusion on the side of the saw tooth rubs against the newly cut kerf surface as the tooth cuts. Pressure, friction and friction-generated heat are produced through this rubbing action. The confluence of this pressure, friction, and heat, performs a polishing action against the newly cut kerf surface.

Abstract: A cutting disc core which has a circular shaped body which has a center hole and a circular peripheral edge. Formed within the body and located spaced from the center hole and also the peripheral edge are a series of scroll shaped slits each of which has a longitudinal axis that is displaced at an acute angle relative to a radius line which passes through the slit. Each of the slits may be filled with a filler with this filler comprising an epoxy resin impregnated with aluminum powder. Each of the slits are of scroll shape.

Abstract: The invention is based on a saw blade, in particular for metal applications, with a serration (14) that has at least one first basic tooth spacing (16) and one second basic tooth spacing (18).

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: An improved diamond tipped saw blade for cutting stone, concrete and similar materials having an innovative laminated core structure of metal and ceramic fiber material arranged to reduce operating noise, increase resistance to heat and significantly increase blade strength and wearability. Importantly, an innovative welding process is employed for attaching diamond cutting segments to the core thereby materially enhancing cutting performance of the blade and permitting replacement of worn cutting segments. Modifications of the aforedescribed blade structure are disclosed setting forth alternative structure of parts.

Abstract: A circular saw blade includes a generally circular blade portion and a plurality of spaced apart teeth attached to the circular blade portion. Each tooth extends outwardly and upwardly from the circular blade portion. Each tooth has a leading edge and a dimple formed therein proximate to a leading edge. Each tooth has a positive rake. Preferably the positive rake is in a range of between about 20 and about 45 degrees.

Abstract: A reciprocating (saber) saw blade having normal cutting teeth for most of its working length from the tip towards the connection end.

Abstract: A cutting tool of the invention comprises a cemented carbide main body and a coating layer formed on the surface of the main body, wherein a region where a reduction ratio of Zr to the inside of the main body is smaller than a reduction ratio of other metals of the groups 4a, 5a and 6a in the Periodic Table, is disposed in the vicinity of the surface of the cemented carbide main body. Therefore, wear resistance and plastic deformation resistance to hardly machinable materials such as stainless steel can considerably be improved for elongating tool life.

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 cutting tool for separating and formatting of sheet materials has a rotationally driven support body having cutting teeth arranged about a circumference of the support body. The cutting teeth have a tooth profile with a radially outwardly positioned front-cutting area with a separating cutting edge and a formatting area with main cutting edges determining the cutting width of the cutting tool. The tooth profile further has a transition area located radially between the front-cutting area and the formatting area. The main cutting edges in the formatting area are arranged radially separately from the separating cutting edges of the front-cutting area by the transition area, wherein the transition area has transition cutting edges adjoining the cutting edges and angled relative to the separating cutting edges toward a radial center axis of the cutting tool. The front-cutting area is symmetrical relative to the radial center axis of the cutting tool.

Abstract: A protrusion on the side of the saw tooth rubs against the newly cut kerf surface as the tooth cuts. Pressure, friction and friction-generated heat are produced through this rubbing action. The confluence of this pressure, friction, and heat, performs a polishing action against the newly cut kerf surface.

Abstract: This invention gives saw blades multiple tiers of saw teeth. Each tier of teeth is designed for and dedicated to a particular cutting characteristic. The first tier to engage the material being cut has fast cutting characteristics. Each subsequent tier cuts away the kerf surfaces left by the preceeding tier and cuts a new smoother kerf.

Abstract: Saw blades and methods of manufacturing saw blades.

Abstract: A cutting tool is composed of a circular base plate, and a plurality of arc-shaped cutting tips fixed to the outer peripheral surface of the base plate and spaced from each other in a circumferential direction. The base plate is formed from stainless steel.

Abstract: A cutting tool 1 includes a hard coating formed on the surface of a substrate formed of, for example, a hard material of cemented carbide (WC-Co-type cemented carbide) equivalent to JIS K10 and polished into the shape of ISO SPGN120312. The cutting tool 1 has a plate-shape with a rake face (the main surface side) that is wider than the opposite face. The hard coating has a thickness in the range of from 1 &mgr;m to 5 &mgr;m, is formed of a TiAlN material, and has a Ti/Al ratio of 1. Coarse grains present in the hard coating and having a size not less than coating thickness occupy an area percentage not greater than 5% by area. The hard coating has a surface roughness Ra of not greater than 0.1 &mgr;m and a surface roughness Rz of not greater than 1 &mgr;m.

Abstract: An apparatus A for cutting off an unnecessary object deposited on a casting includes a motor having a rotary shaft 3 adapted to be rotated at a high speed, and a disk-shaped diamond tip saw 2 mounted at a tip end 4 of the rotary shaft 3 and adapted to be rotated by the rotation of the rotary shaft 3 to cut off the unnecessary object 9 on the casting 8, so that the tip saw 2 is rotated at a rotational speed in a range of 6,000 rpm to 8,000 rpm. Thus, the rigidity of the diamond tip saw 2 rotated at the high speed is increased by a centrifugal force provided by the diamond tip saw 2 itself and a gyroscopic moment effect to reduce the thickness of the diamond tip saw 2 can be reduced by a value corresponding to an increment in rigidity of the tip saw 2, whereby the amount of diamond tips (diamond blades) used can be decreased; an energy-saving for a cutting power can be achieved, and the amount of chips produced upon the cutting of the unnecessary object can be reduced.

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: Disposed at the rim of a circular saw-blade (7) for parting wood, wood-based materials, plastics and non-ferrous metals are groups (4) of saw teeth, each group (4) comprising at least two set teeth in the form of staggered teeth (2,3), whereby the more remote radial end of at least two of the staggered teeth is provided with a bevel (9). Each group (4) of teeth comprises, in addition, one raker tooth (1) having a symmetrical cross-section.

Abstract: A double sided saw blade for operable engagement with a powered drive unit such as a reciprocating saw, comprises a thin elongated metal blade having opposed longitudinal side edges provided with first and second parallel saw tooth cutting edges. A handle element is secured to the blade and includes a mechanism for securing the handle to the powered drive unit.

Abstract: A diamond cutting wheel is disclosed. The cutting wheel is capable of reducing frictional resistance, maximizing cutting efficiency, preventing the formation of chippings and discharging cut chips effectively, by means of a plurality of depressions formed on its cutting tip and the continued cutting surfaces of the cutting tip. The cutting wheel comprises a core disk and a sintered cutting tip. The sinter is fitted around and welded to the circumferential end of the core disk. A plurality of depressions are formed on the upper and lower cutting surfaces of the cutting tip while being spaced apart from one another. The depressions formed on the upper cutting surface alternate with the depressions formed on the lower cutting surface so as to allow the cutting surfaces to be continued.

Abstract: A ventilated air cooled cutting system for a circular saw that produces a thinner kerf than previously achievable. The air cooled cutting system is comprised of a saw blade having a thin blade cutting portion and a thick hub portion. The blade cutting preferably is ground from a plate, while the hub portion remains substantially the thickness of the starting plate material. The thicker hub portion serves as a heat sink to conduct heat away from the thinner blade cutting portion. Cooling holes are provided in the hub portion to provide convection cooling of the hub portion. The thicker hub portion also provides rigidity or stiffness to the blade so that it is better able to withstand torsional forces experienced during the cutting operation. If additional cooling is required, a spacer collar having a series of axial and radial apertures can be fitted to the hub portion to force cooling air through the hub portion in order to enhance cooling.

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 with teeth having a tooth point with a tooth edge (E1, E2), a tooth face on the front side of the tooth as viewed in the direction of sawing, a tooth back behind the tooth edge, and a tooth bottom between the tooth face on each tooth and the tooth back on the next tooth in front of said each tooth, and tooth gullets, wherein a tooth gullet (G1, G2) is defined as the space between the tooth edges of two adjacent teeth, said saw blade having two planar sides; a right hand side (R) and a left hand side (L) when the saw blade is viewed obliquely from above in the direction of sawing, wherein said tooth edge (E1, E2) extends between a right hand tooth corner (A1, A2) and a left hand tooth corner (B1, B2) with reference to said viewing direction, comprising the saw blade within a region of a first tooth gullet between the tooth edge (E1) of a first tooth (T1) and the tooth edge (E2) of the next tooth (T2) in front of said first tooth is bevelled such that the saw blade surface (S1) within said region sl

Abstract: The blade guides of this invention depart from prior art by using the blade to drive thrust rollers, of resilient elastomeric construction, into which the blade's teeth are locked synergetically in an inverse manifestation of the chain and sprocket principle. Lateral thrust force against the blade's teeth is distributed equally along the blade's irregular edge by the correspondingly irregular shape of the elastomeric thrust roller creating an interface of sufficient area to thwart the cutting action of the blade's teeth.

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: The present invention relates to an improvement of the conventional sandwiched type saw blade shank by providing, as the intermediate layer, a coated thin sheet with tens of electro-conductive points or a thin sheet with multiple contacts to enhance weldability and to minimize the thermal deform or pressed marks, so that sound absorption, noise reduction and also heat dissipation may be maximized during a high speed cutting operation.

Abstract: A saw blade is disclosed which comprises a fixing receptacle for fixation on an oscillating drivable drive shaft, having a cutter that is distanced from the fixing receptacle, the cutter extending essentially tangentially or arch-shaped with respect to the fixing receptacle and being provided with a plurality of saw teeth. The cutter comprises at least a first section and a second section, and the saw teeth have at least in the area of one section another spacing or another set of saw teeth than in the other section. The saw blade allows a precise application to the object to be cut and a later continuation of the cutting process with increased feed.

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 device for cutting integrated circuit package boards is disclosed. The device includes a circular saw blade. A plurality of slots are cut in the circumference of the circular saw blade, at least some of the plurality of slots having a depth of at least approximately 2 mm. The blade may have a plurality of first and second slots of different depths cut in the circumference of the saw blade arranged in an alternating pattern.

Abstract: An improved saw blade is disclosed that includes a high precision finish on the blade for providing a low friction surface. Preferably the surface finish is less than approximately 10 Ra. The low friction surface allows for a thinner cutting tip relative to the blade. A method for forming a saw blade having a high precision surface finish. The method involves providing a high speed centrifugal finishing apparatus having an outer vessel and at least one inner vessel. A plurality of saw blades are mounted into the inner vessel, each saw blade being spaced apart from an adjacent saw blade. An abrasive finishing media is added into the inner vessel. The inner vessel is then rotated at high speed relative to the outer vessel. The high speed rotation causes the abrasive media to surface finish the blades. The finished saw blades are then removed from the inner vessel.

Abstract: A saw blade for in-line reciprocating hand-held power saws has first and second types of cutting teeth adapted to cut materials of disparate hardness disposed on its first and second oppositely disposed cutting edges. Saw blades according to the invention are fabricated in a die having first and second longitudinally oriented sections. Band saw blade material having a back edge and a factory cutting edge having teeth adapted to cut a first type of material is placed in the die. When closed under pressure, the first die section cuts the back edge of the band saw blade material in the desired second edge of the saw blade. The second die section cuts a desired type of cutting teeth on a previously shaped second cutting edge of a blade. A power saw equipped with the saw blade cuts a first component of material having a first hardness using the first cutting edge of a blade.

Abstract: A rotary cutting tool having the general form of a circular disk with cutting inserts secured tangentially to the circumference of the tool's body, for metal machining in general and for machining cam lobes. The cutting inserts have concave side surfaces and concave cutting edges.

Abstract: There is provided a mounting member to be detachably screwed onto the rotary shaft of a power tool, and during the attachment and detachment of the mounting member to and from the power tool, a part for clamping and integrally securing a rotary cutter between an inner flange and an outer flange which functions as a lock nut is constructed by fitting a claw of the inner flange onto a fitting groove formed in the outer flange. Owing to this construction, it is possible to highly precisely and integrally secure the mounting member to individual rotary cutters.

Abstract: Curved stock is formed from flat stock by cutting a side-by-side series of V-shaped grooves in the face of a piece of flat stock to be curved with a saw blade having triangular cutting teeth. The cut is made to a predetermined depth so that the opposed face of the stock may be curved such that the V-shaped grooves are closed flush or at least partially closed. The resultant outer opposed curved face is thereby left free of any unsightly or undesirable ridges.

Abstract: A cylindrical hollow blank 1 is separated longitudinally from inside an elongate block of wood by axial boring, the blank is dried and its outer and inner surfaces finished, eg by milling, turning and sanding, and a bottom piece (2, FIG. 2) and, if required, a lid (3, FIG. 2) are then added to form a container. A plurality of cylindrical blanks of different diameters may be produced from a single block. Two concentric core bits of different diameters may be used to bore a blank.

Abstract: The saw blade (1) includes an elongated body (2) having a longitudinal edge and defining a plane of main extension (6). A plurality of protrusions (4) each is located in the region of the longitudinal edge and each includes a seat (12). A plurality of form bodies (5) each is made of hard cutting material, has a cross section (15) and is connected to one of the seats (12). Each cross section (15) of the form bodies (5) in the plane of main extension (6) at a side facing the respective seat (5) is limited by a line (16) in the form of a circular arc, and at a side facing away from the respective seat (5) it is limited by a front line (17) of a surface (18). The line (16) in the form of a circular arc and the front line (17) enclose a wedge angle (22) which is less than approximately 90 degrees, and they are designed and arranged to form a free angle (23). A plurality of cutting portions (10) each extends approximately transverse with respect to the plane of main extension (6).

Abstract: A shadow line saw for cutting building lining having a substantially planar blade support member with a guide surface and a grasping means support surface. An elongate blade is supported by the blade support member. The blade has a working edge with a plurality of saw teeth mounted therealong. A grasping handle extends from the grasping means support surface and is configured to permit an operator of the saw to exert a force on said blade parallel to the guide surface.

Abstract: Curved stock is formed from flat stock by cutting a side-by-side series of V-shaped grooves in the face of a piece of flat stock to be curved with a saw blade having triangular cutting teeth. The cut is made to a predetermined depth so that the opposed face of the stock may be curved such that the V-shaped grooves are closed flush or at least partially closed. The resultant outer opposed curved face is thereby left free of any unsightly or undesirable ridges.

Abstract: A cut-off blade assembly including a thin metal blade having an attachment portion by which the cut-off blade assembly can be attached to a dispenser, and a plurality of projecting similarly shaped triangular primary teeth. The triangular primary teeth each have two sides terminating in points and have bases adjacent the attachment portion that are aligned in a first direction along the blade so that their points project generally at right angles to that first direction. Edge surfaces on the sides and at the points of the primary teeth intersect a major surface of the primary teeth at an included angle of no greater than about 90 degrees to define a cutting edge at that intersection. The cut-off blade assembly further includes projections along one major surface of the primary teeth.

Abstract: In a method of producing saw bands and saw blades with improved dimensional and setting stability, a supporting band (2) with 0.2 to 0.6% carbon, 0.5 to 6.0% chromium and up to 3.5% tungsten, molybdenum and vanadium—individually or in addition to one another—the remainder being iron, is welded to a cutting band (3) of a high-speed steel and the weld (4) is thereby adjusted to a ratio of its average width to the thickness of the band or blade of 0.30 to 0.9.

Abstract: A structural band saw blade is provided having a cutting edge defined by a plurality of teeth spaced relative to each other, and a back edge located on an opposite side of the blade relative to the cutting edge. Each tooth of the band saw blade defines a tip, a rake face formed on one side of the tip, a primary clearance surface formed on the opposite side of the tip relative to the rake face, a secondary clearance surface formed on the opposite side of the primary clearance surface relative to the tip, and a tertiary clearance surface formed on the opposite side of the secondary clearance surface relative to the first clearance surface. The primary clearance surface defines a first acute relief angle, the secondary clearance surface defines a second acute relief angle less than the first acute relief angle, and the tertiary clearance surface defines a tertiary acute relief angle greater than the first and second relief angles.

Abstract: A saw blade for a tree felling head has three tipped teeth in which only one tip of each tooth is exposed outside of the blade disc. Around the circumference of the blade, teeth with tips exposed on the upper side of the blade alternate with teeth having tips exposed on the lower side of the blade. Axes of the teeth are tangent to radii of the disc and angled upwardly or downwardly relative to the plane of the disc, and mating surfaces on the teeth and disc at 45° to the plane of the disc abut against rotation and loading of the teeth.

Abstract: Saw teeth, particularly for tree harvesting, have a wear-resistant insert or inserts of tungsten carbide, for example, oriented along the side and/or outer surface of the saw tooth, extending rearwardly from the leading edges, instead of being along the impact face as is conventional. As wear occurs, sharpness is retained longer and less material needs to be removed once sharpening is required. The principle may be adapted to a wide variety of saw tooth configurations.

Abstract: A saw blade has teeth which are located on a carrier blade. Saw teeth flanks are curved and convex. A transition point between a cutting edge of the saw tooth and the curved convex saw tooth flank is such that a spacing distance between a radial center of the saw tooth flank and a radial plane of symmetry of the saw tooth is greater than a spacing distance between the transition point and the plane of symmetry.

Abstract: Solid carbide segments are brazed to the rim of a steel body and then teeth are ground into them. This allows more teeth/inch on the perimeter and larger diameter blades than on previous carbide-tipped blades. The segments, which typically form an arc of a circle, provide the improved performance of carbide blades without excessive expense of solid carbide blades.

Abstract: The present invention relates to a saw blade and more particularly to a saw blade for cutting steel-reinforced structures to be used for cutting concrete, blocks or pipes in repairing or mending construction materials.

Abstract: A cutting tool insert includes a cutting tip mounted into a first recess of an injection molded hard refractory compound insert having a second recess of preselected size and shape for locating the insert to a cutting tool. A preferred cutting tip is a diamond and a preferred hard refractory compound is a tungsten carbide with a cobalt binder.

Abstract: A bandsaw blade is manufactured from a blank having a plurality of teeth, at least some of which are to be set. Those set teeth are ground, prior to setting, such that at least an upper portion of the front rake face thereof forms an acute angle with a line extending perpendicular to a center line of the blank. Thereafter, those ground teeth are set to respective side of the blank, whereby a lateral rake angle of each set tooth is smaller than a side relief angle thereof. Preferably, the side relief angle is at least 5 degrees larger than the lateral rake angle.

Abstract: The saw blade (30) for an oscillating saw machine has a row of M-shaped twin teeth (38) on its toothed edge (40). Each twin tooth has two tooth tips pointing in opposite directions so as to be effective for sawing in two opposite saw blade motion directions. Each twin tooth is alternately twisted about a central twist axis in one rotation direction or another opposite rotation direction out from the saw blade plane so that the tooth tips of each twisted twin tooth point in opposite directions out from the saw blade plane.