Abstract: A seat air-conditioning device provided in a compartment of a vehicle that supplies air generated by a blower includes a pad wrapped in the skin and a ventilation sheet which is formed in a thin plate shape and supplies air to the seated passenger. An internal space is formed in the pad. The pad includes a seating side communication part that communicates the internal space with the seating surface of the skin, and a blower side communication portion that communicates the internal space with the blower. The ventilation sheet is disposed in the internal space.

Abstract: An indexable cutting insert for chip removing machining includes a plurality of cutting tips that protrude from a central core. Each of the individual tips include a cutting edge, which is formed in a transition between an upper side serving as chip surface and a clearance surface, which extends between the upper side and an under side. The cutting insert has six equally long cutting tips that are located in pairs along the co-ordinate axes of a three-dimensional, orthogonal system of co-ordinates, the origin of which is situated in the core. By arranging the cutting tips in this way, the inactive cutting tips, which are situated behind an active cutting tip, can be contained within a limited volume and therefore be installed in tool basic bodies having tapering parts. A tool equipped with the cutting insert according to the invention, as well as, a tool basic body is disclosed.

Abstract: A positioning section that positions a cutting edge, used in cutting, at an indexed point is provided at a portion of a round insert towards a bottom surface at a periphery of the round insert. A support seat, provided at a tool body, includes a first seat side surface, a second seat side surface, and a restraining section. The first seat side surface and the second seat side surface contact and support side surfaces of the round insert that are disposed 90 degrees apart from each other. The positioning section is fitted to the restraining section by bumpy portion fitting. Only one restraining section is provided. A second relief portion that is larger than a first relief portion is provided at a corner at a side of the second seat side surface.

Abstract: An indexable, invertable cutting insert has radially-oriented positioning segments on a front face of the insert and radially-oriented positioning segments on the back face of the insert. The radially-oriented positioning segments are shifted on the front face relative to those on the back face such that, when the cutting insert is engaged within the toolholder, the cutting segment utilized on the front face will never be directly opposite the cutting segment utilized on the back face. A toolholder system is made up of the cutting insert and a toolholder capable of securing and indexing the cutting insert.

Abstract: A cutting insert with a serrated topography includes a top surface terminating in a circular cutting edge, a bottom surface and a frusto-conical sidewall interconnecting the top surface and the bottom surface, and a plurality of serrations on the top surface uniformly disposed around the circular cutting edge and extending radially inward from the cutting edge in such a way that a bisector through each serration passes through a central axis of the cutting insert. The plurality of serrations are positioned in a cutting tool in such a way so as to reduce regenerative chatter during a cutting operation. A method of reducing generative chatter by positioning the cutting inserts in a particular fashion in a cutting tool is also disclosed.

Abstract: A process for the production of cutting tool inserts is described. A bottom punch is positioned into a powder compaction mold. A metallurgical powder is introduced into a mold cavity. A top punch is positioned into the powder compaction mold in an orientation opposed to the bottom punch. The metallurgical powder is compressed between the bottom punch and the top punch to form a powder compact. Also disclosed are cutting tool inserts produced in accordance with the process and powder pressing apparatuses for the production of cutting tool inserts.

Abstract: A double-sided, indexable milling insert has a round basic shape defined by an imaginary cylinder, which is concentric with a center axis and extends between two reference planes that extend perpendicular to the center axis and are equidistantly separated from a neutral plane. The milling insert includes a pair of opposite chip faces located in the reference planes between which an envelope surface concentric with the center axis extends, a plurality of identical and alternately usable cutting edges along the peripheries of the chip faces, and lock means for rotationally securing the milling insert in one of several predetermined index positions. The individual cutting edge has the shape of a wave trough and includes two edge segments that meet at a bottom point.

Abstract: A circular cutting insert includes a top surface having a top edge portion, a side surface having a clearance surface and a clearance edge portion. A cutting edge is formed between the clearance edge portion and the top edge portion. The clearance edge portion and the top edge portion form a wedge angle. The wedge angle varies as a function of circumferential position about a central axis of the insert relative to a point on the cutting edge.

Abstract: A cutting insert rotated about its axis may be utilized during a metalworking operation and applied against the rotating workpiece to enhance tool performance. The cutting insert is secured within a toolholder having features to secure the insert but at the same time make for efficient removal of the insert from the toolholder.

Abstract: An indexable, invertable cutting insert has radially-oriented positioning segments on a front face of the insert and radially-oriented positioning segments on the back face of the insert. The radially-oriented positioning segments are shifted on the front face relative to those on the back face such that, when the cutting insert is engaged within the toolholder, the cutting segment utilized on the front face will never be directly opposite the cutting segment utilized on the back face. A toolholder system is made up of the cutting insert and a toolholder capable of securing and indexing the cutting insert.

Abstract: The invention relates to an indexable insert (1) for fitting in supporting tools (5) for the machining of workpieces, with an upper side (2) and an underside (3), on which clamping recesses are arranged, and with a circumferential geometry (4) joining the upper side (2) and the underside (3), wherein cutting comers and cutting edges (6) are arranged at the transition from the upper side (2) and the underside (3) to the circumferential geometry (4).

Abstract: A turbocharger has a housing with at least one section that is divided in the longitudinal direction into at least two housing halves.

Abstract: A round cutting insert with a reverse anti-rotation feature that can be manufactured easily and inexpensively is disclosed. The round cutting insert includes a plurality of dimples formed on a first surface and another plurality of dimples formed on a second, opposing surface. The round insert is reversible and indexable. The round cutting insert is removable received in an insert receiving pocket in a tool body. The insert receiving pocket includes a single projection that is capable of being received in one of the plurality of dimples. The cooperation between the projection and one of the plurality of dimples prevents rotation of the round cutting insert when mounted in the insert receiving pocket. The plurality of dimples and the projection can be any desirable complimentary shape, such as a slot, a V-shape, a wagon wheel, a sports wheel, a pyramid, and the like.

Abstract: A cutting insert rotated about an axis may be utilized during a metal working operation and applied against the rotating workpiece to enhance tool performance. Coolant may be provided through the central bore of the cutting insert utilizing bypass ports around the threaded hold-down bolts. Additionally, the cutting insert may be held within the toolholder pocket utilizing hoop walls which follow a serpentine path to provide flexibility. Finally, relative rotation of the cutting insert with respect to the toolholder body may be prevented utilizing a pair of protrusions within the toolholder pocket which engage a pair of recesses within a side of the cutting insert.

Abstract: A turning insert formed for chip-cutting metal machining of a workpiece that rotates in a direction of rotation at a first speed of rotation around a workpiece axis, the turning insert including a front surface, an envelope surface, and a circular cutting edge located where the front surface meets the envelope surface. The cutting edge extends around the front surface and lays in a plane that forms an angle ? with the envelope surface. A tool axis extends through the turning insert in a normal direction in respect of the plane, and the turning insert, during the chip-cutting metal machining, is formed to rotate around the tool axis at a second speed of rotation. The envelope surface forms a chip surface and is arranged to meet chips formed in the chip-cutting metal machining, and the chip surface includes chip breaking means.

Abstract: A round cutting insert with an anti-rotation feature. The round cutting insert includes a plurality of projections formed on a first surface and another plurality of projections formed on an opposing surface. The round cutting insert is reversible and indexable. The round cutting insert is removably received in an insert receiving pocket in a tool body wherein the insert receiving pocket includes a plurality of dimples for receiving one of the plurality of first projections or the plurality of second projections. This arrangement prevents rotation of the round cutting insert while mounted in the insert receiving pocket.

Abstract: The present invention relates to embodiments of a cutting tool holder having at least one insert pocket, wherein at least one insert pocket comprises a side surface and at least one antirotation stop protruding from the side surface. The antirotation stop may comprise at least two substantially planar surfaces. In certain embodiments, the cutting tool holder may have a pocket which comprises a bottom surface and an antirotation stop having three substantially planar surfaces that are substantially perpendicular to the bottom surface. The antirotation stop may be integral to the tool holder or may be produced separately and attached, either permanently or temporarily, to the tool holder. Embodiments may further comprise additional antirotation stops if desired by the machining application.

Abstract: A milling cutter includes a disk like cutter body having radially directed slots and a central aperture. An exchangeable hub of the milling cutter has two adapter members located on either side of the cutter body and has an inner side wall. One of the adapter members has at least two protrusions formed on the adapter inner side wall and one of the two adapter members has a raised portion located on the adapter inner side wall. The adapter members are secured to the cutter body by the protrusions positioned in the slots and the raised portion positioned in the central aperture.

Abstract: A family of cutting inserts includes a plurality of different inserts, each having a different geometry. Each insert of the plurality of different inserts is adapted to be mounted in a common insert-receiving pocket on a toolholder of a milling cutting tool so that an outer diameter generated by the milling cutting tool is the same, regardless which insert of the plurality of inserts is mounted in the pocket.

Abstract: The invention related to a milling tool (1) for machining work pieces, comprising at least one blade that is arranged in a radial manner on the milling head (2) that is rotationally mounted on a rotationally symmetrical designed Y-axis (4) on the milling head. According to the invention, said indexable cutting insert (2) is arranged below a tolerance play (7) in a freely rotating manner on the free end (8) of a mounting pin (9) secured in a detachable manner to the milling head (3) below the clamping seat. The freely rotationally mounted indexable cutting insert (2) is mounted or surrounded on the entire surface of the rear side (10) and on certain pats on the front side (11) such that the mounting pin (9) does not detach itself from the material (12) of the milling head (3).

Abstract: An apparatus for turning a hard and/or brittle material includes a precision workpiece spindle, a workpiece support, a hard and/or brittle workpiece rigidly coupled to the workpiece support, and a diamond tool blade rigidly coupled to a spin-turner mechanism. The diamond tool blade is formed to include a cutting edge arranged to confront the hard and/or brittle workpiece to remove material from the workpiece to form precision-turned components such as optical lenses, mirrors, and optical molds.

Abstract: An apparatus for turning a hard and/or brittle material includes a precision workpiece spindle, a workpiece support, a hard and/or brittle workpiece rigidly coupled to the workpiece support, and a diamond tool blade rigidly coupled to a spin-turner mechanism. The diamond tool blade is formed to include a cutting edge arranged to confront the hard and/or brittle workpiece to remove material from the workpiece to form precision-turned components such as optical lenses, mirrors, and optical molds.

Abstract: A cylindrical cutting tool for a tire detreading or machining machine, the circular blade of which has a beveled cutting edge, wherein the cutting edge is interrupted by at least one notch, that is to say a portion having a lower axial height than the cutting edge.

Abstract: The invention relates to a component for holding down measuring leads and measuring devices in a groove (6), provided therefor and having holes (7), of a machine part (5). It is characterized in that the component is designed in the form of a disk (1) which has a cutting edge (3) on its circumference, the cutting edge (3) not being formed continuously over the entire circumference but consisting of two partial cutting edges (3′, 3″) circumferentially opposite one another. In addition, the disk (1) has a central opening (2) in the form of a hexagon socket. For fitting, the disk (1) is put into the hole (7) in such a way that its two partial cutting edges (3′, 3″) point in the longitudinal direction of the groove (6), then a hexagon socket key is inserted into the opening (2) of the disk (1) and the key is turned while the disk (1) is pressed down at the same time, so that the cutting edges (3′, 3″) cut into the material of the machine part (5) and jam tight.

Abstract: The invention relates to a component for holding down measuring leads and measuring devices in a groove (6), provided therefor and having holes (7), of a machine part (5). It is characterized in that the component is designed in the form of a disk (1) which has a cutting edge (3) on its circumference, the cutting edge (3) not being formed continuously over the entire circumference but consisting of two partial cutting edges (3′, 3″) circumferentially opposite one another. In addition, the disk (1) has a central opening (2) in the form of a hexagon socket. For fitting, the disk (1) is put into the hole (7) in such a way that its two partial cutting edges (3′, 3″) point in the longitudinal direction of the groove (6), then a hexagon socket key is inserted into the opening (2) of the disk (1) and the key is turned while the disk (1) is pressed down at the same time, so that the cutting edges (3′, 3″) cut into the material of the machine part (5) and jam tight.

Abstract: A metal cutting tool includes a tool body which carries a cutting insert and has nozzles for directing cooling fluid against the insert. The tool body defines a longitudinal axis and is insertable into a holder in an axial direction, whereby a surface of the tool body abuts a surface of the holder. Those surfaces include respective holes that are aligned with one another in a radial direction for transferring cooling fluid from a channel of the holder to a channel of the tool body. A seal surrounds one of the holes and is compressed when the tool body is inserted into the holder.

Abstract: A cutting insert intended for chip removing machining includes a body forming at least one cutting edge, a securing structure such as a helical thread disposed at one side of the body, and a key grip such as a profiled recess disposed at an opposite side. The insert is formed of injection molded cemented carbide such that the body, the securing structure, and the key grip are all integral with one another. The insert is secured in a holder by rotating the insert using a key which engages the key grip, whereupon the securing structure engages a complementary securing structure on the holder to pull the insert body against the holder.

Abstract: A modular cutting tool assembly includes a tool holder (50) having at least one insert receiving pocket (52) and first (10,80) second cutting (100,102) inserts alternately receivable within the pocket (52). The first cutting (10,80) insert has a peripheral flank surface (18) configured to provide abutment features with m×n-fold rotational symmetry about the insert's central axis so that it can be restrained against the lateral support surfaces (56,58,60) in any of mn× angular positions, for at least one value of each of n and m where n≧3 and m≧2. The second cutting (100,102) insert has a peripheral flank surface (110) configured to provide reduced-symmetry abutment features with only n-fold rotational symmetry so that the second cutting insert can be restrained against the lateral support surfaces in only n angular positions.

Abstract: A milling cutter is provided including a tool holder and a cutting tool insert. The tool holder includes a mounting end portion and a cutting end portion. The cutting end portion includes a slot defined by first and second diagonal surfaces provided in an end of the cutting end portion. The first and second diagonal surfaces form a substantially V-shaped pocket for receiving the cutting tool insert. The cutting tool insert includes a substantially flat body member having a V-shaped seat portion and a cutting portion, the cutting portion includes a first cutting lobe and a second cutting lobe. A hole is provided which passes through the body member. A screw hole passes through the cutting end portion of the milling cutter which intersects the U-shaped pocket. A threaded portion of the screw hole is offset from a clearance portion of the screw hole to positively seat the V-shaped seat portion of the insert in the V-shaped pocket of the tool holder.

Abstract: A boring tool for use with compacted graphite iron materials includes at least one self-propelled rotating cutter insert. The insert is carried in a cartridge in which the insert is rotatable about is axis which is a secondary axis relative to a boring tool body in which the cartridge is mountable and which is rotatable about a primary axis. In the tool, the insert has its cutting point most distant from the tool axis that is the location at which axial and radial rake angles are defined to assure that the insert rotates during boring about its axis in the correct direction and at sufficient speed to assure cooling of the insert.

Abstract: A cutting tool, preferably for milling, includes a holder and a cutting insert mounted thereon. The holder includes a seat upon which the insert is mounted, and an upstanding wall structure against which an edge face of the insert is pressed. The edge face has upper and lower portions separated by a step. The upper portion is frustoconical and is pressed against an upper wall of the wall structure to frictionally resist rotation of the insert about the insert's center axis. The lower portion of the edge face is polygonal and is adapted to engage a lower wall of the wall structure at a location spaced radially inwardly from a location where the upper portion and upper wall make contact. The lower portion rotates into engagement with the lower wall in response to cutting forces acting on the insert, to create an interference relationship between the lower portion and lower wall which prevents further rotation of the insert.

Abstract: An improved corner-rounding milling cutter preformed indexable and insert therefor. A plurality of the inserts staggered around the axis of rotation of the cutter body cut segments of a composite arcuate cutting profile of uniform radius, together forming the complete arcuate cutting profile. The inserts are interchangeable between any of the positions provided on the milling cutter.

Abstract: An improved cutting insert cartridge arrangement for quick and easy mounting of cutting inserts to and removal from a rotary cutting tool, comprising a cutting insert receiver for the cutting insert, the insert receiver itself being quickly and easily removed from the rotary cutting tool body. The cutting insert receiver may have an outer end portion with an opening therein for receiving a cutting insert, the outer end portion being configurable to apply a varying lateral grasping force against an inserted cutting insert. The cutting insert receiver may be frusto conical in shape to mate with a complementary frusto conical recess in the rotary cutting tool body, whereby securing the receiver in the recess serves to apply the lateral grasping force against an inserted cutting insert due to the camming action between the mating surfaces of the two frusto conical members.

Abstract: A cutting tool holder is composed of a cutting tool holder main body 1 and a bracket 2 mounted to the top of a front end portion of the main body, which are fixedly secured to each other by a clamping bolt 3 and a knock pin 4. At the front end portion of the cutting tool holder main body 1 is provided a plane inclined with respect to the bottom surface of the main body 1 and a dovetail groove to be used for mounting a cartridge. A lower stopper 5 and a lower pressor metal 8 are provided for positioning and fixing the lower portion of the cartridge when inserted into the dovetail groove. The bracket 2 is provided with an upper stopper 6 and an upper pressor metal 10 for supporting and fixing the upper portion of the cartridge. In the cartridge, a hollow rotary shaft 13 is fitted around a washer-faced rigid shaft 12 via bearings. A circular die throw-away tip 14 is fitted around the rotary shaft 13 and is fixed to the rotary shaft jointly with a chip breaker 16 by a nut 15.

Abstract: A cutting insert assembly is disclosed which includes a rotatable cutting insert for cutting a material, and a rotational support for rotatably supporting the cutting insert. Structure for retaining the cutting insert to the support and for inducing rotation of the cutting insert as the cutting insert cuts the material are also provided.

Abstract: A metal cutting insert comprises a top surface which is intersected by a frusto-conical edge surface to form therewith a round cutting edge. Five equidistantly spaced flat facets are formed in the edge surface. Upper ends of the facets are spaced below the cutting edge. A fixing screw secures the insert to the seat of a holder, such that two of the facets are pressed against respective flat contact areas formed on a locating surface of the holder. Each facet forms an acute angle relative to a central axis of the insert.

Abstract: A cutter bit having a concave face surface has a base surface spaced from the concave face surface and a recess extending inwardly from the base surface, The recess is adapted to receive a portion of a tool holder that extends at least partially into the recess, A bearing member is interposed the body of the cutter bit and the portion of the tool holder disposed in the recess.

Abstract: A rotating tool for the cutting of hardened workpieces is comprised of a base body made of steel and having a working surface. The working surface is coated with a homogeneous layer of an extremely hard material. The layer has a uniform thickness. The working surface has a plurality of microcutting grooves that extend parallel to one another and at an acute angle relative to a tangent of the working surface. Each microcutting groove has a cross-sectional profile with a cutting edge and a chip space. The extremely hard material is preferably boron nitride and the base body is preferably made of hardened steel.

Abstract: A tool for use with a tool holder has a body to which at least one blade such as a circular saw blade or milling cutter is clamped to prevent the blade from turning when a selected tooth is brought into cutting or grooving contact with a rotating work piece, the blade is of a type having its teeth so spaced and arranged that each tooth is spaced 90.degree. from another tooth. The body of the tool has first and second parallel clamping surfaces through which a straight slot opens. A first or front clamping member has a hub on which a blade is rotatably mounted and which fits the slot and is held thereby against turning. The two clamping members are connected by a threaded member by which the clamping members are drawn towards each other to clamp the blade against the first clamping surface. The slot is disposed and dimensioned so that, in use, it is normal to the axis of the work piece with one end above and the other end below that axis.

Abstract: A cutting-tool cartridge arrangement for rotary cutting tools in which the cutting-tool cartridge assembly is mountable in an aperture in the cutting-tool body member. The cartridge assembly has an annular split bushing for insertion into the tool body aperture, has internal threads and a slot in the wall to provide a pair of opposed surfaces resiliently movable towards and away from each other. A set screw aperture is provided in the tool body member. The stud seat is threaded into the split bushing. The stud seat has a cutting insert end having matching walls that match the wall configuration of the mounting walls of a frustum cutting insert. A clamping nut threadingly engages the stud seat threaded walls at the cutting insert end thereof and has internal walls configured to match the cutting inserts flank surface. Tightening the clamping nut on the stud seat clamps the frustum cutting insert therebetween.

Abstract: A cutting insert for a cutting tool includes a cutting edge having a concave portion and a rear portion. The concave portion is disposed in the plane of one side surface of the insert and engages a workpiece in advance of the rear portion of the cutting edge. The latter extends from a radially outer end of the convex portion and has components directed radially outwardly, longitudinally rearwardly and toward the opposite side surface of the insert. The rear portion sequentially engages the workpiece to reduce the amount of vibration of the tool.

Abstract: A cutting tool assembly including a tool holder for supporting a cutting tool having a tool body and a plurality of substantially identical cutting edges extending radially from the tool body and being substantially equally circumferentially spaced thereabout. The cutting tool is pivotally mounted on the tool holder about a first pivot axis for pivotal indexing movement of the tool body relative to the tool holder to successively dispose a selected cutting edge in a predetermined cutting position relative to the tool holder. The assembly further includes a latch pivotally mounted about a second pivot axis spaced from the first pivot axis on the tool holder and having a latched position operatively engageable with the tool body to hold the selected cutting edge in a predetermined cutting position and an unlatched position permitting pivotal indexable movement of the cutting tool to dispose another of the cutting edges in the predetermined cutting position.

Abstract: A bulge (12) formed by coldwelding two wire sections (10-11) is removed by advancing the wire through a bore (91) formed in a split cutting tool (64) having a pair of stepped-back tapered surfaces (92,96) at one end. The tapered surfaces terminate along a diameter of the bore to form a pair of spaced semi-elliptical cutting surfaces (93,97) which are successively rendered effective to remove semi-circular sections of the bulge. The apparatus includes facilities (31,32) for temporarily holding the wire in place within the cutting tool (64) and a clamping arrangement (35,36) for securely holding the wire during the weld bulge removal operation.

Abstract: An improved annular cutting die for shaving the surface from metal rods or base, having four facets in the outer annular cutting surface thereof.