Abstract: A tube end rotary milling head with cylindrical cutting pieces removably secured to the milling head by forces exerted by the material being cut and by friction without any separate securing elements.

Abstract: A rotary milling head for boiler tube stub removal with cylindrical cutting pieces removably secured to the milling head by forces exerted by the material being cut and by friction, without any separate securing element.

Abstract: A cutting insert used in rotary cutting tools for performing turning spinning operations has an upper surface and an opposing base surface with a peripheral surface therebetween, the peripheral surface intersecting the upper surface to form a cutting edge. The cutting edge may be a continuous circular cutting edge. The upper surface has rotational asymmetry about an insert axis passing between the upper surface and the base surface, by virtue of having at least one spiral shaped protrusion with a chip deflection distance which continuously increases in a rotational direction about the insert axis for greater than 180°. The cutting insert is assembled to a cutting tool body having a shank portion and a cutting portion sharing a longitudinal axis, the insert axis being aligned with the longitudinal axis and the cutting insert secured in an insert receiving pocket of the cutting portion.

Abstract: A throwaway insert enabling the use of a holder for a long period and having excellent chip evacuation is provided. The throwaway insert is formed in a substantially polygonal plate shape and includes a rake face formed on an upper surface thereof, a relief face formed on a side surface thereof, a main cutting edge formed along a ridge representing an intersection of the rake face and the relief face, which is divided into a plurality of main cutting edge divisions by at least one groove formed on the relief face, and a projection formed so as to protrude from the rake face in correspondence with each of the main cutting edge divisions.

Abstract: A cutting tool is in the form of a holder and a cutting insert that is quickly and easily indexable in one of a plurality of precision cutting positions within the holder. The holder has a bore therein and a stop in the bore. The cutting insert has a shank portion that is insertable into the bore. The cutting insert, when inserted into bore, mates with the stop to locate the cutting insert in one of a plurality of positions. Alternatively, the stop can be supported by the cutting insert and mate with the holder.

Abstract: The invention discloses an improved tool and inserts for concurrently milling multiple splines on a round (rod) material. Replaceable inserts having teeth formed to have their cutting edges shaped in the arc of a circle are disclosed. The inserts each include at least two sets of rough milling teeth and a fine set of milling teeth. The tool holder shank includes recesses which provide a common or universal unit for receiving various sized groupings, each comprising an insert, a wedge for securing the insert, and a supporting member for the insert.

Abstract: The invention relates to a machining tool holder comprising alignment elements in a housing and clamping elements on the base of the housing, the elements being used to align and clamp a removable cutting tip comprising a lateral slide for the lateral deviation of a pressure force exerted by a screw belonging to the tool holder, the screw being guided such that it abuts obliquely against the lateral slide in order to push the slide, and consequently the tip, back towards a longitudinal alignment side which defines the housing and which serves as an alignment end stop for the associated alignment edge of the tip. In this way, the tip is oriented as desired in order to slide along the longitudinal side and abut against a rear alignment side.

Abstract: A tool for chip removing machining, including a long narrow basic body having an envelope surface which is concentric with a center axis, and two opposite ends, and a replaceable loose top which is connected to the basic body via a first coupling that includes a first seating formed in one end of the basic body and a first male element formed in one end of the loose top. The basic body includes a primary part body made of a first material having a first modulus of elasticity, and a secondary part body which includes the first seating and is made of a second material having a second modulus of elasticity which is lower than the first modulus of elasticity.

Abstract: The present invention relates to a tool for machining workpieces, having a shank and a cutting part, wherein the cutting part has a cutting edge section that defines the nominal diameter of the tool, or an insert seat for a cutting insert, the seat having a cutting edge section that defines the nominal diameter of the tool, and wherein the tool has a rotational axis about which the tool rotates in the functionally mounted state.

Abstract: A tool for chip removing machining, including a basic body, and a cutting insert fixed in an insert seat in the basic body by a tightening element, and which, via at least one shoulder surface, is held pressed against a stop surface in the insert seat. An elastically deformable spring is arranged in the insert seat, which provides, by elastic deformation as a result of tightening of the tightening element, the pressing of the shoulder surface against the stop surface.

Abstract: A tube end rotary milling head with cylindrical cutting pieces removably secured to the milling head by forces exerted by the material being cut and by friction without any separate securing elements.

Abstract: A tissue cutting instrument includes an outer member, an inner member received within the outer member, and a cutter coupled to the inner and the outer members such that rotation of the inner member about an axis causes off-axis movement of the cutter. A method of cutting tissue includes positioning an outer member such that the outer member is adjacent tissue, engaging the tissue with a cutter coupled to the outer member, and moving the cutter to end-on cut the tissue. The extended portion of the cutter extends distally beyond a terminal end of the outer member.

Abstract: A device for chip removing machining includes first and second parts coupled together, wherein one of the parts includes a cutting edge. A coupling between the first and second parts includes two interacting surfaces and a clamp for forcing the surfaces together. The surfaces are profiled with male and female members, respectively, that are intercoupled to establish a form locking of the first and second parts against each other. The first and second parts are provided with central holes for receiving the clamp. The male and female members are configured to define only a single position of intercoupling.

Abstract: A milling tool includes a cutting tool insert, roughly plate-shaped and having a rake face on an upper face and a flank on a side face and a main cutting edge at an intersection ridge line part at the intersection of the rake face and the flank, fitted in the periphery of a substantially cylindrical holder removably and so that an axial rake angle of the cutting edge ridge line of the main cutting edge is positive. When the cutting tool insert is rotated about the axis of rotation of the holder, the shape of the locus of rotation of the main cutting edge in a section parallel to the axis of rotation is made an approximate circular arc shape swelling outward with progress from the ends to the center.

Abstract: A tool shank and a replaceable cutting insert are provided for a rotary cutting tool assembly. The tool shank has a drive surface including a central portion, a first portion of generally planar shape extending away from the central portion and a second portion of generally planar shape extending away from the central portion in a direction generally transverse to a central axis of the tool shank. The replaceable cutting insert has a driven surface including another central portion, a first portion of generally planar shape extending away from the other central portion and a second portion of generally planar shape extending away from the other central portion in a direction generally transverse to a central axis of the insert. The central portion of the driven surface has a curved surface transitioning between the first portion and the second portion of the driven surface.

Abstract: Tube ends such as those of boiler tube banks, are prepared utilizing any of various combinations of processes which include a step of micro-diameter tube film removal from a portion of a tube end, including an area below a beveled segment, or segment to be beveled. The micro-diameter film removal step provides the tube with an exposed, clean metal surface which is conducive to a subsequent welding or bonding operation performed on the tube. Preferably, the process is performed with a tube milling tool having interchangeable milling or cutting heads. A specialized milling head is also disclosed and, in one embodiment, is at least used to perform the micro-diameter tube film removal step. Advantageously, the tube film removal milling head also removes a weld overlay on one or both sides of a tube in one embodiment. The tube film removal milling head includes an attached blade having a planar face configuration which enables tube film removal.

Abstract: A rotary cutting tool has a cutting insert clamped from behind by a backing clamp against a frontal abutment defined in the body of the rotary cutter head. The clamp backs the cutting insert against the cutting pressure during operation and provides for the use of a same rotary cutter with different profiles of cutting inserts. Plugs of predetermined weight can be inserted in pre-formed holes in the cutting insert to permit recalibration of the insert after a sharpening operation.

Abstract: An insert clamping wedge for clamp-fixing a cutting insert, seated in an insert attachment seat formed in a cutter body, to a recessed portion formed in the insert attachment seat is provided, the insert clamping wedge including: a wedge body, wherein the insert clamping wedge is pressed into the cutter body, wherein the wedge body includes a clamp surface which comes into close contact with the cutting insert and a wedge surface of which a gap between itself and the clamp surface becomes smaller in a press-insertion direction of the wedge body, and wherein the section perpendicular to the press-insertion direction of the wedge body from the wedge surface to the clamp surface being formed in a bell shape.

Abstract: The invention relates to a cutting tool of the type that comprises, on one hand, a basic body (1) having an insert seat, and on the other hand a cutting insert (2), which is detachably connected in the insert seat and rigidly secured in the same by means of connecting surfaces (3, 5) of serration type, one (3) of which forms said insert seat and comprises first and second ridges (18, 19), which extends perpendicularly to each other. According to the invention, at least the connecting surface that forms the insert seat (3) is formed with, on one hand, two spaced-apart surface fields or sets of a plurality of mutually parallel, first ridges (18A, 18B), which are arranged in extension of each other, and on the other hand one or more second, transverse ridges (19), which are located between the two sets of first ridges (18A, 18B). Furthermore, the invention also relates to a basic body of a cutting tool, as well as a cutting insert as such.

Abstract: A toolholder for use in a metalworking operation, with a body extending along a longitudinal axis and a recess extending within the first end of the body. Adjacent an insert pocket adapted to receive a cutting insert in the recess is at least one wall with a portion having a surface with multiple interruptions to form a chip ejection segment. The chip ejection segment may be an integral part of the toolholder body or may be a discrete piece removably attached to the toolholder body. A method of imparting to a toolholder such a chip ejection segment is also disclosed.

Abstract: An exemplary cutting apparatus for cutting a workpiece includes a base, a cutting device and a first driving device. The cutting device is movably mounted on the base. The cutting device includes a first blade and a first vibrator. The first blade is movable in a moving direction toward the workpiece. The first vibrator is configured for vibrating the first blade to increase a shearing force applied to the workpiece. The first driving device is configured for driving the first blade to move.

Abstract: A debris removal tool is generally provided with a head unit having a base plate, at least one cutting tooth and a drive unit for rotating the base plate. A flex plate may be provided for biasing the base plate with respect to an axis of rotation. The cutting teeth may be removably and pivotably coupled with the base plate. An elongated handle may be provided for use with the head unit and may be pivotably secured there too. Rechargeable and disposable power sources may be used with the drive unit. Various embodiments that incorporate functional grips and brushes are also disclosed.

Abstract: A percussion-rotary drill includes a shaft (2) and a one-piece, hard material head (3, 3?, 3?) having two major cutting bits (4) each having a main cutting edge (5), and two minor cutting bits (6) each having a minor cutting edge (7) axially offset rearwardly along a rotational axis (A) of the drilling head (3, 3?, 3?) relative to an adjacent major cutting edge (5), with the two minor cutting bits (6) each having, in its radially outer region on both sides of the minor cutting edge (7), a tangential edge (8) extending at an angle thereto.

Abstract: A four-sided cutting insert has a top surface, a bottom surface, and a pair of first side surfaces connected to a pair of second side surfaces via corner surfaces. The cutting insert has a rotational axis of symmetry, a first axis extending along the first side surfaces and second axis extending along the second side surfaces. Opposite corners of the cutting insert are provided with a first pair of corner edges defined between a first edge and an associated second edge. Proximate its leading end, the first edge has a main portion which, in a top view of the insert, extends inwardly toward the first axis at a first angle. In a side view, the first edge slopes downwardly from the corner edge in the direction of the base surface. The associated second edge, in the top view of the insert, extends from the corner edge in an outward direction relative to the second axis.

Abstract: A rotary cutter head includes a rotary body, resilient clamping arm, and at least one cutting blade. The clamping arm clamps the cutting blade radially inwardly first rather than in a circumferential direction in order to positively lock the cutting blade radially, and thereby prevent the cutting blade from migrating out of position slightly during high speed rotation of the cutter head.

Abstract: A cutting tool holder adapted for mounting thereon a cutting insert having a top face, a bottom face and formed with an insert bore having an inner surface extending between the top and the bottom face. The holder comprises a seat defined by a bottom surface and at least one side wall angled to the bottom surface, a seat bore with a bore axis having an open end at the bottom surface of the seat, and a securing mechanism for securing the cutting insert in the seat. The securing mechanism comprises a securing pin received within the seat bore and having a body with an outer surface extending between a proximal end and a distal end of the body and defining a pin axis therealong.

Abstract: Method for making a form-fitting connection between a tool insert and a tool holder of a rotatingly driven tool, wherein the tool holder has bearing surfaces by which forces or torques are transmitted to the tool insert, wherein the tool insert is made from a material harder than that of the tool holder and by sintering a green compact of powder. A sintered green compact for the tool insert is used as a hob, by which the bearing surfaces in tool holders are manufactured by punching or press-forming.

Abstract: The present invention relates to PVD coated cemented carbide cutting tool inserts roughing to finishing milling operations. The cemented carbide cutting tool insert comprises a substrate and a wear resistant coating. The substrate comprises in addition to WC, from about 5.5 to about 8.5 wt-% Co and Cr such that the Cr/Co weight ratio is from about 0.08 to about 0.12 and also small amounts of Ti and Ta. The wear resistant coating is a homogeneous AlxTi1-xN-layer with x equals from about 0.6 to about 0.67. The thickness of this layer is from about 1.2 to about 3.6 ?m.

Abstract: A tool for chip removing machining comprising a tool head, which is provided with insert seats for the receipt of replaceable cutting inserts as well as a fastening part intended to be received in a machine tool. The tool has at least two chip pockets, in each one of which two replaceable cutting inserts are arranged, the two cutting inserts arranged in each chip pocket being intended for different types of machining and having the active surfaces thereof opposite each other. Furthermore, the two cutting inserts arranged in a common chip pocket have their axially furthermost portions located at different levels in the axial direction of the tool. The two cutting inserts for turning are located in different chip pockets and have their axially furthermost portions thereof located at different levels in the axial direction.

Abstract: A four-sided cutting insert has a top surface, a bottom surface, and a pair of first side surfaces connected to a pair of second side surfaces via corner surfaces. The cutting insert has a rotational axis of symmetry, a first axis extending along the first side surfaces and second axis extending along the second side surfaces. Opposite corners of the cutting insert are provided with a first pair of corner edges defined between a first edge and an associated second edge. Proximate its leading end, the first edge has a main portion which, in a top view of the insert, extends inwardly toward the first axis at a first angle. In a side view, the first edge slopes downwardly from the corner edge in the direction of the base surface. The associated second edge, in the top view of the insert, extends from the corner edge in an outward direction relative to the second axis.

Abstract: A rotary cutting tool such as a helical end mill, having pockets arranged to overcome harmonic vibrations. The tool has at least two and in one embodiment all three of three spacing irregularities. In the first irregularity, columns of pockets, typically associated with flutes, are staggered circumferentially out of even spacing. In a preferred embodiment having three flutes, the flutes are mostly not centered on one hundred twenty degree intervals. In the second irregularity, at least some pockets are arranged at different radial rake angles. In the third irregularity, at least some pockets are arranged at different axial rake angles.

Abstract: This invention relates to a boring tool having a cutting insert. The insert has a chip breaker with a base that extends from the secondary cutting edge to the primary cutting edge. The primary cutting edge, which is also referred to below as the major cutting edge, thereby runs diagonally with respect to the insert surface or top face of the indexable insert toward the chip breaker base of the chip breaker. The secondary cutting edge, which is also referred to as the minor cutting edge below and is advantageously straight, descends toward the major cutting edge, as a result of which a wiper geometry is realized on the minor cutting edge. Therefore the major cutting edge and the minor cutting edge preferably form a closed triangle with the chip breaker base.

Abstract: The invention relates to a machining tool holder comprising alignment elements in a housing and clamping elements on the base of the housing, the elements being used to align and clamp a removable cutting tip comprising a lateral slide for the lateral deviation of a pressure force exerted by a screw belonging to the tool holder, the screw being guided such that it abuts obliquely against the lateral slide in order to push the slide, and consequently the tip, back towards a longitudinal alignment side which defines the housing and which serves as an alignment end stop for the associated alignment edge of the tip. In this way, the tip is oriented as desired in order to slide along the longitudinal side and abut against a rear alignment side.

Abstract: An apparatus (1) for processing specimens (15), comprises an observation device (2) for observing a specimen (15), a specimen holder (3) for receiving the specimen (15) to be processed, and a tool holder (6), which is suitable for the reception of tools (5) for different processing steps.

Abstract: An apparatus (1) for processing specimens (15), comprising an observation device (2), a specimen holder (3) for receiving the specimen (15) to be processed, and a tool holder (6), the tool holder (6) being pivotable in a plane normal to its longitudinal axis (L?) by means of a pivot arm (22), and being rotatable about its longitudinal axis (L?); furthermore a drive system for selectable execution of the pivoting of the pivot arm (22) is provided.

Abstract: An annular thread-whirling head is disclosed, wherein, projecting over its periphery, indexable inserts are mounted in recesses in a first plane and are connected directly to the thread-whirling head. The plurality of indexable inserts lies with an indexable insert surface on a bearing surface of the recess, in a manner such that the indexable inserts are individually accessible, and may be assembled and disassembled in a simple manner by way of a fastening element. The produced swarf per indexable insert is minimized by way of the plurality of used indexable inserts, and the service life or the performance of the thread-whirling head is increased. Recesses may also be provided in a second plane so that, apart from a plurality of indexable inserts in a first plane, one may also arrange and fix a plurality of indexable inserts in a second plane, offset parallel to the first plane.

Abstract: A toolholder and cutting insert for a toolholder assembly wherein the cutting insert has a tapered shank which provides a resilient interference fit with a tapered section of a bore extending within the toolholder. Additionally, a rearwardly facing face on the cutting insert abuts with a forwardly facing surface on the toolholder to properly locate the cutting insert within the toolholder.

Abstract: Tube ends such as those of boiler tube banks, are prepared utilizing any of various combinations of processes which include a step of micro-diameter tube film removal from a portion of a tube end, including an area below a beveled segment, or segment to be beveled. The micro-diameter film removal step provides the tube with an exposed, clean metal surface which is conducive to a subsequent welding or bonding operation performed on the tube. In yet a further embodiment, tube film removal blades are provided having a curved or rounded edge which can be utilized in milling operations having close quarters. In a further embodiment, milling head cutting blades are provided which are adjustable. In a preferred embodiment, the milling head cutting blades and/or bevel blades are provided with elongated, slotted bores.

Abstract: A cutting tool comprises a tool body having a pocket for supporting an insert. The tool body may have a flute for evacuating chips from a workpiece during a cutting operation. The tool body and the insert may have complimentary shapes to cooperatively form an uninterrupted flute. The tool body may comprise a axial clearance face. The tool body may also comprise a radial clearance face.

Abstract: A thread cutting milling tool comprises a shank with a working portion formed with a recess for receiving a thread cutting insert. The thread cutting insert has one edge formed with a line of thread-form teeth of identical profile. The thread cutting teeth project laterally for cutting engagement with a work-piece while the tool spins about its axis. The tool also orbits within or about a work piece, and in one orbit of the tool in a helical cutting path relative to the work piece a number of complete turns of the screw-thread are formed which is equal to the number of teeth of the insert in engagement with the work-piece. A secondary cutter carried on the thread cutting milling tool provides for formation of a pilot portion or counter bore on the work piece at an end of the screw thread. The pilot portion or counter bore provides for alignment of a threaded member which is to engage the screw thread.

Abstract: A thread cutting milling tool comprises a shank with a working portion formed with a recess for receiving a thread cutting insert. The thread cutting insert has one edge formed with a line of thread-form teeth of identical profile. The thread cutting teeth project laterally for cutting engagement with a work-piece while the tool spins about its axis. The tool also orbits within or about a work piece, and in one orbit of the tool in a helical cutting path relative to the work piece a number of complete turns of the screw-thread are formed which is equal to the number of teeth of the insert in engagement with the work-piece. A secondary cutter carried on the thread cutting milling tool provides for formation of a pilot portion or counter bore on the work piece at an end of the screw thread. The pilot portion or counter bore provides for alignment of a threaded member which is to engage the screw thread.

Abstract: A high-speed milling cutter (10) includes a shank (12), a front portion (14), and a transition surface (16) between the shank (12) and the front portion (14). The cutter (10) also includes an insert pocket (20) having a bottom surface (22) and side surfaces (24, 26). The bottom surface (22) includes a raised boss (28) for supporting a cutting insert (30). The cutting insert (30) has a top surface (32), a bottom surface (34) and side surfaces (36, 38, 40, 42). The cutting insert (30) includes a primary cutting edge (44, 46) formed at an intersection between the top surface (32) and two of the side surfaces (36, 38, 40, 42). The top surface (32) of the cutting insert (30) includes a concave or dish-shaped topography that is designed for high-speed milling operations of a metallic work piece.

Abstract: Tube ends such as those of boiler tube banks, are prepared utilizing any of various combinations of processes which include a step of micro-diameter tube film removal from a portion of a tube end, including an area below a beveled segment, or segment to be beveled. The micro-diameter film removal step provides the tube with an exposed, clean metal surface which is conducive to a subsequent welding or bonding operation performed on the tube. Preferably, the process is performed with a tube milling tool having interchangeable milling or cutting heads. A specialized milling head is also disclosed and, in one embodiment, is at least used to perform the micro-diameter tube film removal step. Advantageously, the tube film removal milling head also removes a weld overlay on one or both sides of a tube in one embodiment. The tube film removal milling head includes an attached blade having a planar face configuration which enables tube film removal.

Abstract: A cutting tool is in the form of a holder and a cutting insert that is quickly and easily indexable in one of a plurality of precision cutting positions within the holder. The holder has a bore therein and a stop in the bore. The cutting insert has a shank portion that is insertable into the bore. The cutting insert, when inserted into bore, mates with the stop to locate the cutting insert in one of a plurality of positions. Alternatively, the stop can be supported by the cutting insert and mate with the holder.

Abstract: The tool comprises a tool wheel (5) which is mounted on a holding arm (4) and has a tool-wheel parent body (6) having a machining body (7) arranged at the outer margin. In one embodiment variant, this machining body is designed as an abrasive body. A base body for accommodating the bearing arrangement is designed in one piece with the holding arm (4), which also has the supply lines (8) for the hydrodynamic bearing arrangement and the hydraulic drive. A tool-centering interface (11) permits the presetting of the tools outside the machine tool.

Abstract: The rotating cutter head for working the surface of elastomers which comprises indexable inserts or annular cutting tools has said indexable inserts or annular cutting tools provided on the periphery of a disk having a diameter of from 200 to 800 mm, said disk being capable of rotating with up to 5000 revolutions per minute, enabling cutting speeds of from 10 to 100 m/s, preferably from 20 to 60 m/s. At least 6, preferably from 10 to 30, cutting tools are provided on the periphery of said disk.

Abstract: A cutting tool is in the form of a holder and a cutting insert that is quickly and easily indexable in one of a plurality of precision cutting positions within the holder. The holder has a bore therein and a stop in the bore. The cutting insert has a shank portion that is insertable into the bore. The cutting insert, when inserted into bore, mates with the stop to locate the cutting insert in one of a plurality of positions. Alternatively, the stop can be supported by the cutting insert and mate with the holder.

Abstract: Cutter plates (19) with an approximately cube-shaped base body have been created, in particular for finish-milling of a crankshaft (5). At the edge of its cover surface, the base body is provided with a hump or protrusion, which can be embodied rib- or strip-shaped, has a cutting edge each on its front and back and adjoins the neighboring lateral surface. This cutting edge is a component of the main cutting edge (33) adjoining the cover surface. A corresponding protrusion (29) is provided on the lower end of the lateral surface (27) and adjoins the end of the cover surface (22) remote from the protrusion (28). In this case the lateral surface (27) is preferably inclined in such a way that it terminates flush with the protrusion (29) without forming a concave surface area with it.

Abstract: A vehicle wheel has an outboard face which includes a smoothed portion to provide a cosmetic finish to the wheel face. The smoothed portion is formed by pressing a cutting tool having a non-symmetrical tip against the wheel surface as the wheel is rotated.

Abstract: A rotating machining tool includes a shank that can be clamped into a machine or a machine spindle, and a pin that is machine-molded in one piece with the shank. The pin has a threaded section and a press-fit section. The machining tool also includes a cutter head that is formed with a bore for receiving the pin. The bore is formed with a threaded section for forming a positive fit connection with the threaded section of the pin. The bore is also formed with a press fit section for forming a frictional connection with the press-fit section of the pin.