Abstract: A saw blade includes an elongated body with a working edge extending along a longitudinal axis. A first strip composed of carbide or cermet and including at least one first full cutting tooth is coupled to a first portion of the working edge by a first weld fusion zone composed of a ductile material. The first strip is set in a first direction at a first angle out of a plane of the body by a first bend in the first weld fusion zone. A second strip composed of carbide or cermet and including at least one second full cutting tooth is coupled to a second portion of the working edge by a second weld fusion zone composed of a ductile material. The second strip is set in a second direction, opposite the first direction, at a second angle out of the plane of the body by a second bend in the second weld fusion zone.

Abstract: A reciprocating saw blade for a machine tool, in particular a jigsaw blade, includes a first row of saw teeth and a second row of saw teeth. The first and second rows of saw teeth are arranged at an angle to a longitudinal axis of the reciprocating saw blade. The angle of the first row of saw teeth opposes the angle of the second row of saw teeth. The reciprocating saw blade also includes a further row of saw teeth arranged between the first and second rows of saw teeth. The further row of saw teeth is set back, in particular suddenly set back, towards the longitudinal axis in relation to the first and second rows of saw teeth.

Abstract: A recip blade has a cutting edge defining a cutting direction and a repeating pattern of cutting teeth. Each repeating pattern includes (i) a leading tooth with respect to the cutting direction that includes a rake face defining a first rake angle that is negative, and (ii) a trailing tooth following the leading tooth with respect to the cutting direction that includes a rake face defining a second rake angle that is less negative than the first rake angle.

Abstract: A saw blade including a body, a plurality of cutting teeth, and a plurality of gullets. The plurality of cutting teeth formed on the body. Each cutting tooth includes a first end and a second end. The plurality of gullets is formed between the plurality of cutting teeth. Each gullet having an opening defined between the first end of one tooth of the plurality of cutting teeth and the second end of an adjacent tooth of the plurality of cutting teeth. Each opening has an opening width and a gullet width. A ratio between he gullet width over the opening width is greater than or equal to 1.2:1.

Abstract: An inline edge-sealing apparatus and method for sealing the kerf surfaces of cut cellular PVC board includes a rotary saw with either a tandem sealing disc or with an integral elevated sealing surface that is dimensioned to provide precise interference with kerf surfaces for friction and heat to melt and seal the surfaces in an aesthetically desirable manner. A kerf splitter, such as a kerf splitting pin, rod or riving knife, may be provided following a saw blade with integral kerf-engaging surface to avoid disruption of the sealed surface when cut boards exit the saw blade teeth.

Abstract: A saw blade includes a body and a plurality of cutting teeth formed on the body. Each cutting tooth includes a tip at a first end of the cutting tooth, a rake face extending from the tip toward the body, a relief face extending from the tip toward a second end of the cutting tooth and sloping toward the body, and a projection at the second end of the cutting tooth and sloping away from the body. The saw blade also includes a plurality of gullets formed on the body between the plurality of cutting teeth. Each gullet forms an undercut portion between the body and the projection of each cutting tooth.

Abstract: A segmented cutting type tipped saw blade includes a first ridge tip, a second ridge tip, a first end tip, and a second end tip. A first end of the first end tip, a second end of the second end tip, a tip end of the first ridge tip, and a tip end of the second ridge tip project radially outward. A top bevel surface extending from the first end and a top bevel surface extending from the second end, a first bevel surface and a second bevel surface extending from the tip end of the first ridge tip and a first bevel surface and a second bevel surface extending from the tip end of the second ridge tip each have a top bevel angle of greater than or equal to 3° and less than or equal to 10°.

Abstract: Fiber-reinforced polymer composites possessing improved damping ability are provided. In one aspect, the fibers provide the composite with a relatively high dynamic modulus over a broad range of frequencies for a given temperature. In another aspect, the polymer may comprise a viscoelastic polymer possessing a relatively high loss factor for a given frequency and temperature. The polymer may be further tailored to control the center frequency at which the maximum loss factor of the polymer is achieved. The composite so formed exhibits a relatively small reduction in loss factor with significant increase in dynamic modulus over a broad range of frequencies for a given temperature. As a result, a structure damped by the composite exhibits a relatively high, constant loss factor as compared to conventional damping materials. Thus, embodiments of the disclosed composites dissipate significantly more energy during each vibration cycle than conventional damping materials.

Abstract: A reciprocating saw blade includes a body defining a longitudinal axis. The saw blade includes an attachment portion coupled to the body. The attachment portion is able to couple to a reciprocating saw. The saw blade further includes a cutting portion having a plurality of cutting teeth. Each cutting tooth includes a tip and a protrusion spaced a first distance from the tip. The protrusion of a respective cutting tooth is spaced a first distance from the tip of the cutting tooth in a direction parallel to the longitudinal axis. A gullet is defined between the tip of a first cutting tooth and the protrusion of an adjacent second cutting tooth. The gullet includes a gullet width in a direction parallel to the longitudinal axis. The first distance is greater than the gullet width.

Abstract: A tipped circular saw blade includes a disk-shaped metal base having a central axis of rotation, and a plurality of circumferentially-spaced tips extending radially outward from an outer periphery of the metal base. Each tip includes a flank along the radially outer portion thereof, a side face located along a side of the flank, and a chamfer extending between the flank and the side face. The chamfer is oriented at a chamfered angle with respect of the flank. Further, each tip includes a cutting edge located on an end of the flank in the circumferential direction. The cutting edge is configured to cut the workpiece. In addition, each tip includes a groove formed on the flank and extending circumferentially from the cutting edge. The width of the groove may be 0.20 mm to 0.30 mm.

Abstract: A reciprocating saw blade includes a body formed from a piece of coil stock. The body has a shank end configured to secure the blade with a reciprocating saw, a plunging end configured to enter a workpiece, and a cutting edge and opposite back edge extending between the shank end and the plunging end. The cutting edge has a plurality of teeth arranged in a pattern that includes left and right set teeth. A plurality of gullets is disposed between adjacent teeth. Each of the teeth and the gullets has substantially the same size, except that the first and third consecutive teeth immediately adjacent the plunging end have been flattened to be unset, and at least a portion of the second consecutive tooth has been removed to form an enlarged gullet between the first and third teeth.

Abstract: A saw band (1) includes a chamfered tooth (10) including two effective cutting edge portions (7) being arranged in the region of the chamfer (15) between which an ineffective cutting edge portion (8) of the first tooth (10, 11) is formed. In this way, five cutting channel portions (18) are formed by only two geometrically differently designed teeth (10).

Abstract: A saw blade comprises a blade backer with a pair of side surfaces that extend substantially parallel to each other. An intermediate surface extends between the pair of side surfaces of the blade backer. A plurality of teeth extends from the intermediate surface. At least one of the teeth is located entirely within planes containing the side surfaces of the blade backer. A tip is formed at an apex end portion of the one tooth. A leading face surface of the tip on the one tooth is disposed at an acute angle relative to a plane extending perpendicular to the planes containing the side surfaces of the blade backer.

Abstract: A drill bit includes a shank, a transition portion, and a body portion defining a plurality of axially stacked, progressively sized steps. The steps include a first step and a terminal step coupled to the transition portion. The first step defines two tip flutes each disposed at a tip flute angle. The body portion defines a body flute extending from the first step to the transition portion. The drill bit also includes an indicator band formed on a portion of the body flute and a portion of an outer surface of one of the plurality of steps.

Abstract: A reciprocating saw blade for use with a reciprocating saw, the saw blade including a body including a first substantially planar surface and a second substantially planar surface opposite the first surface, an attachment portion for coupling the saw blade to the reciprocating saw, a cutting edge including a plurality of cutting teeth, and a rib element including a pair of outermost rib members. One of the outermost rib members is proximate the cutting edge and the other of the outermost rib members is proximate a back edge of the blade opposite the cutting edge. Each outermost rib member includes a first portion and a second portion. The first portions of each of the ribs are substantially parallel to one another.

Abstract: A method for producing a primary material for a machining tool and such a primary material, for example a primary material for a saw blade, a saw band, a cutting line, a punching knife or a blade, wherein a first flat carrier is arranged with one edge thereof along an edge of a second flat carrier, wherein the first and second carriers are welded together along the edges by supplying at least a first particulate cutting edge material, and the first and second carriers are separated again substantially along the welded joint formed as noted above.

Abstract: Provided is a tip saw which is provided with saw blades formed at a predetermined interval on an outer periphery of a disk-shaped base metal and a tip securely attached to a base formed on each saw blade, in which flank faces and rake faces of the tips are set in a staggered manner, and the rake faces are provided at a negative angle of inclination in a direction opposite to a rotation direction of said tip saw, and when a workpiece material is thin-walled, the tips are in substantially fan shapes, and adjacent saw blades have a pitch of less than 3.5 mm or less than 3.0 mm therebetween.

Abstract: A saw blade is provided including a circular metal disc including a circular metal disc including a central aperture and a plurality of teeth spaced around a periphery of the circular metal disc. A first plurality of fully enclosed body slots are generally equally spaced from a center of the circular metal disc by a first distance and a second plurality of fully enclosed body slots are each disposed directly radially outward from a respective one of the first plurality of body slots. The second plurality of slots are generally equally spaced from the center of the circular metal disc by a second distance greater than the first distance. The saw blade design provides a blade with no modal frequencies in the operating frequency range.

Abstract: A reciprocating power tool including a housing supporting a motor having a drive shaft, a blade clamp mechanism, and a drive mechanism. The drive clamp mechanism is coupled to the motor for converting rotational motion of the drive shaft into reciprocating motion of the blade clamp mechanism. The power tool includes an accessory having an attachment portion coupled to the blade clamp mechanism, and a body portion extending from the attachment portion. A grout rake is coupled to the body portion and includes a plurality of cutter portions. The grout rake is repositionable relative to the body portion between a first position and a second position. In the first position one of the plurality of cutter portions is located in a working position for contacting a workpiece, and in the second position another one of the plurality of cutter portions is located in the working position for contacting the workpiece.

Abstract: A method of preparing a closure for a product retaining container is disclosed along with the closure that is obtainable by the method. The present disclosure also relates to a use, in the manufacture of a closure, of a knife blade comprising a cutting edge region having a discontinuous cutting edge.

Abstract: A tooth is provided for a circular disc felling saw. The saw tooth may have a generally square pyramidal shape with tips at each of the four corners. Each of the tips has an enlarged tip region where the tip is stepped outward from the adjacent sides. The front face of the tip remains smoothly continuous. The enlarged, or built-out region extends rearwardly a greater distance than the lateral step out distance, and the rearward build-out portion is relieved on planes parallel to the main portions of the planar sides of the pyramid. The tooth may have both leading and trailing cutting tips. Either one or both of the primary and secondary cutting tips may include a wear insert, such as a ceramic wear insert.

Abstract: A cutting block for use in a bone osteotomy procedure is disclosed, and includes a first cutting guide surface, a second cutting guide surface, and a third cutting guide surface. The first, second, and third cutting guide surfaces are adapted to be temporarily affixed to a bone having a first side and a second side such that the first cutting guide surface is disposed on the first side of the bone, and such that the second cutting guide surface and third cutting guide surface are disposed on the second side of the bone forming an angle therebetween.

Abstract: A saw blade for an electric saw tool with a drive shaft making a reciprocating arcuate swing motion, the saw blade comprising a saw plate which has centrally a coupling part for connecting and fixing the saw plate to the drive shaft of the saw tool and has an appearance as being elliptic, and has cutting teeth on the outer periphery. Also, a saw blade for an electric saw tool with a drive shaft making a reciprocating arcuate swing motion, the saw blade having at one end a coupling part for connecting and fixing the saw blade to the drive shaft of the saw tool and having at the other end cutting teeth of the saw blade, and height of the cutting teeth being smaller in the order from near to at both ends of a line of the teeth.

Abstract: Insert and a saw blade including the insert. The insert is formed in an elongated manner and includes a cutting edge on a front side, a cutting face with an elevation formed along a length of the insert from the cutting edge, and a mounting surface structured and arranged for a clamping element one of directly or indirectly adjoining the cutting face. The mounting surface is formed with a first partial surface and at least one of an upwardly projecting second partial surface that adjoins the first partial surface and tapering lateral surfaces that are arranged at a side of the first partial surface and along a length of the insert starting from the cutting edge.

Abstract: A saw blade is provided including a circular metal disc including a circular metal disc including a central aperture and a plurality of teeth spaced around a periphery of the circular metal disc. A first plurality of fully enclosed body slots are generally equally spaced from a center of the circular metal disc by a first distance and a second plurality of fully enclosed body slots are each disposed directly radially outward from a respective one of the first plurality of body slots. The second plurality of slots are generally equally spaced from the center of the circular metal disc by a second distance greater than the first distance. The saw blade design provides a blade with no modal frequencies in the operating frequency range.

Abstract: A surgical cutting blade for cutting bone material when the blade is coupled to a hand-held surgical saw having protrusions extending therefrom that interface with the cutting blade. The cutting blade includes a distal end comprising a plurality of cutting teeth and a shank portion adjacent the distal end. It also includes a proximal end adjacent the shank portion. The proximal end is shaped to attach to the surgical saw and includes an upper substantially planar surface and a lower substantially planar surface and a side edge extending between the upper and lower planar surfaces. The side edge at least in part defines an outer perimeter extending about the proximal end. The outer perimeter includes a plurality of indentations forming openings configured to receive and interface with the protrusions of the surgical saw in a manner that the protrusions cooperatively impart motion to drive the blade.

Abstract: A method of forming a joint for interconnecting adjacent elements comprises providing a first element defining at least one aperture extending from a first edge to a second edge through a thickness of the first element. The method further comprises mating a second element to the first element with the second element overlaying the at least one aperture of the first element at the second edge thereof such that the second element extends through the at least one aperture perpendicular to the first element with an excess portion of the second element extending beyond the first edge of the first element. Finally, the method comprises compressing the excess portion of the second element such that the second element is continuous across the at least one aperture and adjacent the first and second edges of the first element, thereby interlocking the first and second elements and forming the joint.

Abstract: A jigsaw blade has an elongated body with a first and second end, a cutting edge and an opposing back edge. A plurality of teeth is formed on the cutting edge. The first tooth of the plurality of teeth is immediately adjacent the second end of the blade. The first tooth is raker tooth and has a rake face and a clearance face. The rake face and clearance face intersect to form a cutting edge of the first tooth. The second end defines a plunging nose. The second end includes a nose end surface that extends between the cutting edge and the back edge. The nose end surface is on an angle of about 35° with respect to a line defined by tips of the plurality of teeth. The nose end surface intersects the first tooth relief surface to form an angled cutting edge with a leading sharp point.

Abstract: A tool is provided. The tool may include a handle, a frame, and a removable saw blade including at least one hole on one end thereof and at least one hole on another end thereof. The tool may also include a compensating clip configured to attach the removable saw blade to the frame and to provide tension for the removable saw blade. The compensating clip may include a plate including a clip hook, and the plate further includes an opening where a compensator spring is provided. The clip hook is configured to attach onto the at least one hole of the removable saw blade to attach the saw blade to the frame.

Abstract: A saw for pivoting a blade in a sagittal plane. The saw includes a drive assembly with at least one drive member. The drive assembly is configured to both reciprocate the blade in the sagittal plane and to simultaneously pivot the blade around an axis that extends through the sagittal plane. The drive assembly is configured to reciprocate and pivot the blade at different frequencies. Consequently the teeth (186) of the blade travel in a loop pattern that crosses itself.

Abstract: The present invention is directed generally to tools that are made, at least in part, more durable, particularly one or more working surface(s) of the tools. For example, various tools such as trowels, knives, and scrapers may be made having at least a portion of their blades heat treated to make at least their working edges more durable and extend their useful lives. For example, in various embodiments, a putty knife, taping knife, or scraper blade may have at least one working surface or edge that has been at heat treated while an area of the blade where a handle is permanently attached is not heat treated.

Abstract: A sawing power tool, in particular a sawing hand-held power tool, includes at least one clamping mechanism that is configured to fasten a saw blade to be driven with a stroke motion. In one embodiment, the at least one clamping mechanism fastens a compass saw blade that has a blade body which includes a cutting edge with cutting teeth and that has a fastening shaft. The at least one clamping mechanism has at least one geometric structure that forms a form-closure element that is configured to form a connection to at least one at least portionally inverse form-closure element of the saw blade.

Abstract: A saw blade for a machine tool driven oscillatingly about a longitudinal axis has at least one cutting edge, on which, at least in part, abrasive particles are provided. The saw blade is suitable, in particular, for sawing fiber composites.

Abstract: An accessory for a power tool, includes a mounting portion configured to mate with an oscillating drive member of a power tool. A support arm portion extends from the mounting portion in a first direction. The support arm portion includes an inner edge that faces in a second direction transverse to the first direction. A blade portion extends from the support arm generally in the second direction. The blade portion includes a trailing edge arranged facing generally toward the mounting portion and a leading edge arranged facing generally away from the mounting portion. The trailing edge and the leading edge portion meet to define a pointed tip portion.

Abstract: A portable zero clearance circular saw including a motor flame portion with a transverse oriented drive shaft and arbor coupled to the drive shaft, a handle portion with, a hand grip coupled to the motor frame portion aft end, a planar blade deck on a first lateral side, a movable blade shield rotatably mounted coaxial with the drive shaft and having a sidewall with a edge face coplanar with the blade deck, a trigger proximate the hand grip to move the blade shield, and a blade couplable to the drive shaft against the arbor, such that the blade outer surface is flush with the blade deck and blade shield sidewall. The handle portion may be rotatably coupled to the motor frame portion, and may include two laterally disposed blade shield triggers operably coupled to the blade shield via a dual pulley system.

Abstract: Methods and apparatus for making and using tools, for example concrete cutting blades, may use laminations. They may also include inserts, such as structural inserts, damping inserts and fluid flow elements. Fluid flow elements may include a tube, a transition element including an inlet fitting, a fluid pressure containment structure inserted into the channel of the blade, an added material resistant to effects of the fluid including plastics, coatings and films, and other structures. Additional nozzle structures may be included. Methods and apparatus for making and using tools including concrete cutting blades having improved damping characteristics may include inserts, plugs and other structures, including those made from materials softer or more ductile than the tool material.

Abstract: A saw blade for an oscillating saw can include a plate having cutting teeth arranged in an arcuate tooth pattern at a cutting path. Cutting teeth on opposite sides of the centerline of the plate may be arranged to face oppositely. Each cutting tooth can have primary and secondary relief surfaces at different angles to the cutting path. Cutting teeth may be offset outwardly from the plate, with tips of some of the cutting teeth having outward-facing kerf surfaces parallel to the plate. The plate may be of bimetal construction, so that the cutting teeth and bulk of the plate are made of different materials. The cutting teeth may be formed by a coining process.

Abstract: A sintered composite body of cemented carbide and cBN grains, wherein the cBN grains are dispersed in a cemented carbide matrix. The body further includes a cBN depleted zone extending 50-400 ?m from the surface of the body towards the core thereof. The mean cBN grain size outside the depleted zone is 1-20 ?m and the cBN content outside the depleted zone is 0.3-4 wt %.

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: A system, a method and a cutting apparatus may use a bit to cut an object. The apparatus may have a bit connected to a cutting block on a cutting apparatus. The cutting apparatus may rotate about the object while the bit may advance into the object to cut the object. The cutting apparatus may have another bit located opposite to the bit to bevel an edge of the object. The cutting system may reduce point loads and/or provide an equalized load. The cutting system may reduce tool pressures when cutting a pipe and may provide extended tool and/or bit life.

Abstract: A saw blade includes a plate with teeth. A tip pocket is formed in each of the teeth where the tip pocket has a first end and a second end and a continuously curved surface between the first end and the second end. A tip has a back face shaped to match the continuously curved surface. A joint joins the tip to the plate where the joint extends for substantially the length of the surface of the tip pocket and the back face. The continuously curved surface may have a wave profile. A top face of the tip and a peripheral face of the tooth may be coplanar.

Abstract: A saw tooth for a saw blade that is attached in a longitudinal direction thereof on the saw blade body to extend away, at least in part, from the saw blade body. The saw tooth is formed with a cutting-face part having a cutting face, a height of which extends in the longitudinal direction and a width of which extends perpendicularly to the longitudinal direction. The width of the cutting face is greater than a height of the cutting face.

Abstract: An accessory for coupling to an attachment mechanism of an oscillating power tool includes a working end, an opposite rear end, and a fitment portion adjacent the rear end portion. The fitment portion includes a generally U-shaped opening having a central portion and a rearward portion open to the rear end, and configured to receive a post of a tool clamping mechanism. The fitment portion further includes a first plurality of openings in communication with and extending radially outward from the central portion, a second plurality of openings not in communication with and positioned radially outward from the central portion. The central portion, the first plurality of openings, and the second plurality of openings are configured to couple the fitment portion to a plurality of different configurations of attachment mechanisms for oscillating power tools.

Abstract: A saw blade includes a blade base with an arcuate cutting edge. The cutting edge is curved to a lesser extent than a circular arc with a radius that corresponds to the distance between the axis of rotation of the saw blade and the cutting edge.

Abstract: A tool for parting, in particular for sawing, includes a carrier blade that has a toothing portion with a finite, geometrically determined toothing, and a receiver for fixing the carrier blade to a tool spindle of a power tool. The tool spindle can be driven in oscillation about its longitudinal axis. The toothing is disposed at a distance from the receiver and is configured to be advanced perpendicularly in relation to the longitudinal axis, such that the toothing is realized in a non-uniform manner along the toothing portion. The toothing portion has a middle region and end regions that adjoin the middle region and that are provided with strengthened corner teeth.

Abstract: The saw blade according to the invention comprises a plurality of teeth spaced apart from each other by chip spaces, wherein at least some chip spaces have pimple-shaped bulges.

Abstract: A circular saw blade, includes a base plate and tips. A coating selected from the group consisting of molybdenum disulfide, tungsten disulfide, Teflon, and any combination thereof is applied on the tips.

Abstract: A reciprocating saw blade includes a body, an attachment portion coupled to a first end portion of the body, and a cutting portion formed on the body. The cutting portion includes a plurality of cutting teeth. Each cutting tooth includes a tip, a rake face, and a relief surface. The tips of the plurality of cutting teeth define a plane. The saw blade also includes a plunge point formed on a second end portion of the body for initiating a plunge cut. The plunge point includes a leading tooth and a second tooth. The leading tooth includes a tip and a rake face and defines a leading gullet. The second tooth is positioned in the leading gullet closer to the leading tooth than to a nearest cutting tooth of the plurality of cutting teeth. The second tooth includes a tip that is spaced apart from the plane.

Abstract: A saw tooth for mounting onto a holder of a circular saw or of a mower drum is provided. The tooth has a mounting end for mounting against a component of the holder, a cutting end, opposite to the mounting end, the cutting end being provided with at least one cutting edge; and a plurality of sides extending from the mounting end to the cutting end. The plurality of sides include at least one holder side operatively mountable against the holder and at least one outer side opposite to the holder side the outer side being non-linear, diverging from the mounting end to the cutting end and having a contour slope which increases from the mounting end to the cutting end. The tooth thereby provides a greater clearance at its mounting end, and a greater kerf at its cutting end.

Abstract: A circular saw includes a circular disk-shaped body with an outer periphery having saw teeth separated by gullets and saw tooth tips at the saw teeth. The saw tooth tips have a saw kerf. At least one of the gullets has a radially innermost margin at a first radius. The body has a thickness discontinuity at a second radius, the second radius being at least equal to the first radius. The body has a first thickness adjacent to and radially outside of the thickness discontinuity and a second thickness adjacent to and radially inside of the thickness discontinuity. The second thickness is greater than the first thickness. The ratio of the difference between the second thickness and the first thickness, and the difference between the kerf and the first thickness is equal to or greater than 0.25.