Abstract: A first main trajectory represents a trajectory of a first main cutting edge obtained by revolving and projecting the first main cutting edge onto a plane including a central axis. A second main trajectory represents a trajectory of the second main cutting edge obtained by revolving and projecting the second main cutting edge onto the plane. The first main trajectory intersects the second main trajectory. A tangent to the first main trajectory at an intersection between the first main trajectory and the second main trajectory is inclined to be closer to the central axis in a direction from the first surface toward the second surface. A tangent to the second main trajectory at the intersection is inclined to be closer to the central axis in a direction from the second surface toward the first surface.

Abstract: A polycrystalline element includes a table formed of polycrystalline diamond. The table includes a first surface; a second surface spaced apart from the first surface; and at least one side extending between the first surface and the second surface. The table also includes a plurality of extensions also formed of polycrystalline diamond, wherein at least one extension of the plurality of extensions extends away from at least one of the first surface and the at least one side. The at least one extension of the plurality of extensions includes a first portion that is polyhedral shaped. Optionally, the polycrystalline diamond of at least one extension of the plurality of extensions is contiguous with the polycrystalline diamond of the table. The polycrystalline element may be used in downhole tools for boring and well drilling, machine tools, and bearings.

Abstract: A polycrystalline element includes a table formed of polycrystalline diamond. The table includes a first surface; a second surface spaced apart from the first surface; and at least one side extending between the first surface and the second surface. The table also includes a plurality of extensions also formed of polycrystalline diamond, wherein at least one extension of the plurality of extensions extends away from at least one of the first surface and the at least one side. A radial line extends radially outward from a center axis of the first surface intersects each of a long axis of a subset of a plurality of extensions. Optionally, the polycrystalline diamond of at least one extension of the plurality of extensions is contiguous with the polycrystalline diamond of the table. The polycrystalline element may be used in downhole tools for boring and well drilling, machine tools, and bearings.

Abstract: Proposed in a milling head, which has a plurality of machining milling teeth and tooth gaps arranged therebetween, whereby the milling teeth and the tooth gaps are arranged along a circumferential surface of the milling head, which milling head is to be provided with a number of milling teeth, which is greater than and/or substantially equal to the number of milling teeth ascertained using the equation y=a·x5+b·x4+c·x3+d·x2+e·x+f, wherein x is the diameter of the milling head in millimeters and y is the tooth pitch, i.e. the distance between two adjacent milling teeth in millimeters, and it substantially applies that the value of a ranges between a=1.7·10?9 and a=2.3·10?9, the value of b between b=?5·10?7 and b=?11·10?7, the value of c between c=0.7·10?4 and c=1.3·10?4, the value of d between d=8.5·10?3 and d=9.7·10?3, the value of e between e=2.6·10?1 and e=3.7·10?1 and the value of f between f=?1.5·10?1 and f=?2.6·10?1.

Abstract: A second distance is longer than a first distance and a value obtained by dividing the third distance by the fourth distance is more than or equal to 0.5 and less than or equal to 0.8 when it is assumed that the first distance represents a distance between the cutting edge and the mounting surface in a direction perpendicular to the rake face, the second distance represents a distance between the mounting surface and a boundary portion between the rising portion and the flat portion in the direction perpendicular to the rake face, the third distance represents a distance between the boundary portion and a tip of the cutting edge in a direction parallel to the rake face, and the fourth distance represents a distance between the second discharging opening portion and the tip of the cutting edge in the direction parallel to the rake face.

Abstract: A family of rotating cutting tools includes at least two toolholders having different diameters, each toolholder including a first side and a second side, the first side and the second side being substantially perpendicular to an axis of rotation of the toolholder, and at least one insert abutment surface on each of the first side and the second side. For each toolholder, the insert abutment surfaces on the first and second sides define an angle with a plane perpendicular to the axis of rotation of the toolholder, and the angle defined by the insert abutment surfaces and the plane perpendicular to the axis of rotation of the toolholder is different for the at least two toolholders having different diameters.

Abstract: An indexable cutting insert includes a top surface, a bottom surface and a plurality of side surfaces. Each side surface includes a first pair of chip grooves, and a second pair of chip grooves. A planar corner surface is disposed between each side surface. A corner radius extends between the top and bottom surfaces and the planar corner surface. A plurality of primary wiper cutting edges are formed at an intersection between each of the first pair of chip grooves and the the top and bottom surfaces. A plurality of secondary roughing cutting edges are formed at an intersection between each corner radius and each of the first pair of chip forming grooves. A plurality of wiper cutting edges are formed at an intersection between each planar corner surface and each of the second pair of chip forming grooves. A milling cutter is also disclosed.

Abstract: A milling tool for the milling of a slot in a workpiece includes a plurality of cutting inserts, which comprise an under side; an opposite upper side, which forms a chip surface and extends parallel to an extension plane; and an edge side between the upper side and the underside. A cutting edge, which extends between the edge side and the chip surface, includes a primary main cutting edge; a front cutting edge, which extends along an edge line; and a primary corner cutting edge, which extends between and connects the primary main cutting edge and the front cutting edge. The primary corner cutting edge has a convex shape and extends, with respect to a rear portion of the cutting insert, forward from the front cutting edge to a position on the other side of an imaginary line, which forms an extension of the edge line and extends in a tangential direction to a point on the primary corner cutting edge.

Abstract: A cutting insert has cutting edge portions at intersection ridge portions between each of two end surfaces at the opposite side to each other and the peripheral side surface. Both the end surfaces are formed to be plane-symmetrical. In each end surface, long side portions and short side portions are alternately connected through raised corners or lowered corners. Each cutting edge portion is formed in regard to the raised corner, and has a corner cutting edge formed in the raised corner, a major cutting edge connected to the corner cutting edge and extending in the long side portion, and a minor cutting edge connected to the corner cutting edge at the opposite side and extending in the short side portion.

Abstract: A cutting insert for machining a workpiece includes a top surface; a bottom surface. A plurality of peripheral side surfaces extend between the top and bottom surfaces. Each side surface includes an arcuate-shaped surface and a substantially planar surface. Each substantially planar surface is formed with a true angle with respect to a plane perpendicular to the top and bottom surfaces that results in a relatively smaller resultant angle when mounted in a slotting cutter to produce a true 90 degree wall on a workpiece during a slotting cutting operation.

Abstract: An internal milling cutter for producing a recess terminating in a radius in a workpiece, in particular for milling a crankshaft, comprises a tool holder having interchangeable cutting inserts detachably attached thereto. For the production of the radius, a plurality of first interchangeable cutting inserts are provided, which are arranged one after another in the direction of cut and have cutting edges which produce complementary portions of the radius, wherein the first interchangeable cutting inserts for producing the radius are identically configured.

Abstract: A cutting tool has a plurality of cutting portions located along a cutter peripheral surface, alternating between cutter side surfaces, with a cutting insert retained in each cutting portion. At least one cutting portion has a main recess, formed opposite of the respective cutting insert. The main recess has a recess arcuate surface and a recess bearing surface. The cutting portion also has a cam member with a cam arcuate surface and a cam bearing surface, located on different sides of a cam pivot axis. The cam member is located within the main recess, the cam arcuate surface being adjacent the recess arcuate surface and the cam bearing surface being adjacent the recess bearing surface. The cutting portion is moveable between a neutral position and an adjusted position, in which the axial position of the cutting insert is adjusted when the cam member is rotated about the cam pivot axis.

Abstract: A milling insert and a milling tool for the milling of a slot in a work piece. The milling insert includes an under side, an opposite upper side that forms a chip surface and is parallel to an extension plane, and an edge side disposed between the upper side and the under side. A cutting edge, which extends between the edge side and the chip surface, has a primary main cutting edge, a secondary main cutting edge, and an end cutting edge. The end cutting edge connects the primary main cutting edge and the secondary main cutting edge and borders on the primary main cutting edge at a primary transition point and on the secondary main cutting edge at a secondary transition point. A normal to the extension plane of the chip surface forms an acute clearance angle with the edge side along the cutting edge. The end cutting edge is curved from the primary transition point to the secondary transition point.

Abstract: A slotting cutter includes a disc-like cutter body rotatable in a predetermined direction on a central axis perpendicular to a plane of the cutter body. The cutter body includes a stop slot, an upper cam slot and a lower slot. A plurality of pockets adapted to receive a cutting inset are formed about a perimeter of the body. A cantilevered clamping member includes a bottom surface with a pair of clamping surfaces that engage a pair of angled clamping surfaces on a top surface of the cutting insert during operation. A wrench is provided to lift the cantilevered clamping member for inserting, indexing or removing the cutting insert from the slotting cutter. The wrench includes two fixed pins and a floating pin that prevents the cantilevered clamping member from bending too far and limiting the useful life of the slotting cutter.

Abstract: A milling tool for slot milling includes a tool body and a plurality of separated first seats, which form root insert seats for root inserts arranged one after the other along a first line and a plurality of separated flank insert seats that includes a plurality of second seats for flank inserts . The plurality of second seats is arranged one after the other along a second line on a primary side of the root insert seats. A plurality of third seats for flank inserts is arranged one after the other along a third line on a secondary side of the root insert seats. Each flank insert seat includes a bottom surface, an inner side surface, and an outer side surface. Each flank insert includes an under side, an opposite upper side, and a circumferential edge side that forms a rake face connecting the upper side and the underside.

Abstract: A device and a method of making thereof includes a milling cutter body that is connectable to a rotatable spindle or holder. The milling cutter body is provided with at least one series of a plurality of tangentially spaced-apart cutting edges or a plurality of tangentially spaced-apart seats intended for milling inserts having at least one cutting edge. The cutting edges or seats of the series are arranged such that, within the series, a first angle between a radius that intersects a first cutting edge and a radius that intersects another cutting edge, which is situated closest to the first cutting edge in a direction of rotation around the rotation axis, is smaller than a second angle between the radius that intersects the first cutting edge and a radius that intersects another cutting edge, which is situated closest to the first cutting edge in a direction opposite the direction of rotation.

Abstract: A cutting insert according to an aspect of the present invention is provided with two opposite first surfaces, and a peripheral surface extending between the two first surfaces. A first cutting edge is formed on an edge of one first surface of the two first surfaces. A rake surface associated with the first cutting edge extends on the one first surface. A second cutting edge is formed on an edge of one second surface of two opposite second surfaces in the peripheral surface. A rake surface associated with the second cutting edge extends on the one second surface. The second cutting edge has a different function from the first cutting edge.

Abstract: A cutting insert is arranged in a tangential direction on an outer peripheral portion of a tool body, the cutting insert having a reduced area in a top view thereof. The cutting insert has an upper face, a lower face and at least five side faces extending between the upper and lower faces. The upper face of the cutting insert has at least five intersection portions intersecting with the at least five side faces. The at least five intersection portions include first and second intersection portions and third and fourth intersection portions shorter than the first and second intersection portions, respectively. A cutting edge is formed at each of the first and second intersection portions. A rake face is formed on cutting side faces corresponding to the first and second intersection portions, respectively, while a cutting edge flank is formed on the upper face.

Abstract: A cutting insert includes an insert body portion and a plurality of projecting portions provided integrally with the insert body portion. The projecting portion includes a cutting edge and includes projecting portion upper and lower surfaces, two projecting portion side surfaces, and a projecting portion side end surface extending therebetween. In the projecting portion, a round corner surface extends between the projecting portion upper surface and the projecting portion side end surface. The cutting edge is formed so as to include a corner formed along an edge of the round corner surface and such that the projecting portion side surface serves as a rake face. The projecting portion is designed such that a length between the two projecting portion side surfaces is smaller than a diameter of an inscribed circle defined on the insert body portion.

Abstract: A grooving tool body for holding a number of inserts for use in forming one or more grooves in a wall of a bore when the tool body is rotated about a first axis and simultaneously circularly interpolated about a second axis. The tool body includes a generally cylindrical portion disposed generally about the first axis and having a first end and an opposite second end, the first end being structured to be mounted to a machine tool for simultaneously rotating the tool body about the first axis and circularly interpolating the second end about the second axis. The tool body further includes a number of pockets disposed at or about the opposite second end of the generally cylindrical portion. Each pocket of the number of pockets is structured to receive and couple therein a cutting insert for forming one or more grooves in wall of the bore.

Abstract: Milling tool and milling insert kit are provided for the gash milling of a workpiece. The tool comprises a tool body that defines a rotation axis and has a first end, an opposite second end, and a peripheral surface that extends around the rotation axis between the first end and the second end. A large number of separated seats, which are arranged one after the other in the tool body along a line and receive one each of corresponding number of replaceable milling inserts, comprise a primary main cutting edge and a secondary main cutting edge that converge to each other. The milling inserts comprise outer milling inserts, which project from the tool body by a first length from the rotation axis, and inner milling inserts, which project from the tool body by a second length from the rotation axis. The first length is considerably greater than the second length.

Abstract: A cutting tool includes one or more cutting portions. Each of the cutting portions has a cutting insert and an insert pocket for mounting the cutting insert. The insert pocket has a top surface with one or more projecting portions with a shape of serration, and a bottom supporting surface. The cutting insert has a top surface mating with said projecting portions of the insert pocket, and a bottom surface mating with the bottom supporting surface of the insert pocket.

Abstract: A family of rotating cutting tools includes at least two toolholders having different diameters, each toolholder including a first side and a second side, the first side and the second side being substantially perpendicular to an axis of rotation of the toolholder, and at least one insert abutment surface on each of the first side and the second side, the insert abutment surfaces on the first side and the second side of each toolholder being substantially mirror images of each other, and the insert abutment surfaces on each of the first side and the second side of each toolholder being substantially identical to the insert abutment surfaces on each other one of the at least two toolholders, and a plurality of identical inserts mounted on each of the at least two toolholders, each insert having a first side surface, a second side surface, and a plurality of edge surfaces between the first and second side surfaces, each edge surface intersecting with another edge surface at a corner and forming a cutting edge,

Abstract: A slot-milling tool includes a slot-milling insert to be on-edge mounted to a toolholder of the slot-milling tool. The insert includes a first side surface, a second side surface, and a plurality of edge surfaces between the first and second side surfaces, each edge surface intersecting with another edge surface at a corner and forming a cutting edge. The first and second side surfaces each have a side insert supporting surface for abutting against an abutment surface in a toolholder, and the insert has reflective symmetry about a central plane extending through the edge surfaces midway between the first and second side surfaces. A chipbreaker is provided on each edge surface and corresponds to each cutting edge, and each chipbreaker includes a recess beneath the cutting edge and a portion projecting toward the cutting edge, the projecting portion defining first and second chip deflecting recesses between the projecting portion and the first and second side surfaces, respectively.

Abstract: The invention relates to a tool coupling for connecting a tool carrier which can be driven in a rotating manner, in particular a milling tool with a machine spindle or an adapter connected to a spindle, wherein four drivers in a crosswise formation are provided for transmitting torque between the said parts and in the clamping state engage in four recesses. To allow the tool coupling to be easily operated and to be of a simple construction, and also to counteract undesired jamming, it is proposed that the drivers respectively have on the side transmitting the torque a planar face which lies with full surface-area contact against a wall of a groove-shaped recess in the clamping state, that on the opposite side the driver has a smaller positively or frictionally engaging contact with the wall there of the groove-shaped recess and that a quick-acting clamping device is providing for the axial clamping of the tool carrier and the spindle or an adapter.

Abstract: A cutting insert is removably mountable on an insert seat formed in a peripheral of a tool body rotated around an axis O and of substantial disc shape. The cutting insert includes a substantially planar insert body of a substantially square shape in plan view, a flank at an upper face of the body, a rake face at a side of the body intersecting with the flank, and a cutting edge at an intersection ridge between the rake face and the flank. The cutting edge is a substantial involute in side view of the body, the rake face is inclined to an inside of the body from an upper toward a lower face, and at least a front end arranged in a peripheral of the tool body is concave constituting a part of a substantially conical side face.

Abstract: A milling cutter for chip removing machining, including a basic body rotatable in a predetermined direction around a center axis and having a front end surface and an envelope surface that extends axially backward from the front end surface and is concentric with the center axis. A number of indexable milling inserts are mounted in respective peripherally spaced-apart seats having a mutually fixed pitch, each milling insert including an upper side, an under side and at least one clearance surface, the clearance surface together with the upper side delimiting at least two alternately active cutting edges that are uniform in their extension between first and second end points. The cutting edges of each milling insert are situated on different levels in relation to the under side of the milling insert to alter the effective pitch between the active cutting edges of the milling inserts by indexing of at least one of the milling inserts.

Abstract: A side cutter has a substantially disk-shaped or substantially ring-shaped cutter body, two or more peripheral cutting inserts each having a cutting edge protruding from a peripheral surface of the cutter body, and two or more corner cutting inserts each having a cutting edge protruding from an end surface of the cutter body. The peripheral cutting insert and the corner cutting insert are arranged in the cutter body such that the cutting edges adjacent to each other in the circumferential direction have overlapping rotational trajectories around the axis of rotation of the cutter body. In addition, a peripheral cutting insert and a corner cutting insert belonging to an insert set are spaced from each other in an axial direction of the cutter body and are arranged substantially in the same position in the circumferential direction of the cutter body.

Abstract: An improved design of a cutting insert system includes a plurality of indexable peripheral milling cutting inserts adapted to be mounted on a peripheral milling tool holder. Each of the cutting inserts includes an insert width that is the same for each cutting insert. Each of the cutting inserts also includes a corner nose having a corner nose radius dimension that is different for each cutting insert, and an axial alignment clearance face that defines an equivalent face location and an equivalent clearance angle for each of the plurality of cutting inserts when the insert is detachably mounted on the tool 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. 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: Milling cutter and method of operating same, and other machine tools, and an adjustment mechanism therefor. The abstract of the disclosure is submitted herewith as required by 37 C.F.R. §1.72(b). As stated in 37 C.F.R. §1.72(b): A brief abstract of the technical disclosure in the specification must commence on a separate sheet, preferably following the claims, under the heading “Abstract of the Disclosure.” The purpose of the abstract is to enable the Patent and Trademark Office and the public generally to determine quickly from a cursory inspection the nature and gist of the technical disclosure. The abstract shall not be used for interpreting the scope of the claims. Therefore, any statements made relating to the abstract are not intended to limit the claims in any manner and should not be interpreted as limiting the claims in any manner.

Abstract: A cutting edge is formed at a ridge between an upper surface and a side surface. In the side surface, a plurality of grooves are formed so as to extend from the side surface to the upper surface to divide the cutting edge, and the clearance angles within these grooves are formed so as to increase from one end of the cutting edge toward the other end of the cutting edge. This achieves a cutting insert having small cutting force and excellent cutting performance. Among the plurality of grooves, the groove nearest to the one end of the cutting edge has preferably a width increasing from the upper surface of the cutting insert toward the lower surface.

Abstract: A milling head for a milling machine for producing synthetic spectacle lenses, comprising a rotational axis, a coupling part for tensioning into a milling spindle chuck, a shoulder which connects to the coupling part with a contact surface for the milling spindle chuck, a shaft which is connected to the shoulder and a blade collar with an outer diameter D which is connected to the shaft and which comprises several cutting plates with a radius R, wherein between the blade collar at the height of the outer diameter D and the contact surface, a free length L is provided. The measurement of the free length L in relation to the measurement of the outer diameter D and the measurement of the radius R fulfills the following condition: ILI=0.18 (IDI?2IRI)+54±a, with a maximum deviation a of 3.

Abstract: A cutting or milling insert for rotatable tool for chip removing machining and of the type that comprises a cutting edge in a transition between a front chip surface and a clearance surface extending rearward from the same. Remotely behind the first-mentioned cutting edge, a second cutting edge is formed in a transition between, on one hand, a second chip surface behind the first clearance surface, and, on the other hand, a trailing second clearance surface. The spacing between opposite sections of the front cutting edge is greater than the corresponding spacing between opposite sections of the second or rear cutting edge, the cutting edge angle (?) of at least the front cutting edge being acute. A rotatable cutting tool, which is equipped with the cutting or milling insert is also provided.

Abstract: The present invention concerns a rotary cutting tool (1) with a cylindrical supporting spindle (2) and several individual blades (3) with essentially radial cutting edges, helically ground and set at regular intervals on the outer surface of the spindle, each blade (3) having a rectilinear base (4) which inserts into a slot (5) of the same shape as said base, each individual blade (3) being mechanically fixed to the spindle (2), characterized in that it also comprises two covers (8, 9) fixed to the respective bases (8?, 9?) of the spindle (2) so as to reinforce the fixing of the blades (3).

Abstract: Rotary material removal tool mounted to a shaft for rotational motion includes a body and a plurality of radially extending arms. Each arm includes a radially outward peripheral edge, and, relative to a direction of rotational motion of the body, a leading side and a trailing side. Radially outward peripheral edges include a cutting insert mounting structure that projects axially below a bottom side of the body. The rotary material removal tool includes at least one of the following features to reduce measured air pressure (P1): (i) a leading edge of the insert mounting structure includes an air-displacement structure, (ii) the radially extending arms include at least one through-opening extending from the leading side to the trailing side, and (iii) the bottom side of the body is spaced from a plane containing a bottommost surface of the projecting cutting insert mounting structure. The air-displacement structure can be generally wedge-shaped, cone-shaped or pyramid-shaped.

Abstract: This roughing end mill is provided with an end mill body which is rotated around an axis, and with a plurality of inserts which are placed on an outer circumference of the end mill body at a predetermined distance apart from each other in the direction of the axis. The plurality of inserts form insert rows of which a plurality are provided in a circumferential direction of the end mill body, and at least the inserts included in a group are positioned so as to be offset in the axial direction from each other in the different insert rows which are mutually adjacent in the circumferential direction. The inserts included in the group are provided with cutting edges which face towards an outer circumferential side of the end mill body and which are formed as waveform cutting edges which undulate as they move in the axial direction.

Abstract: A device for cutting bar-shaped or tubular workpieces (1, 27), for example a peeling machine, is presented, in which, for the first time, the advance of the tools (7, 26, 44, 46) is brought about by a relative rotation between a toolholder (3, 25, 45) carrying the tools (7, 26, 44, 46) and an advancing sleeve (4, 24, 47). The toolholder (3, 25, 45) and advancing sleeve (4, 24, 47) are driven via gearwheels (19, 18) arranged on the same gear shaft (17) and having an oppositely oriented helical toothing. By means of an axial movement of the gear shaft (17), a relative rotation between the toolholder (3, 25, 45) and advancing sleeve (4, 24, 47) is achieved on account of the helical toothing. Moreover, it is proposed to use milling cutters (26, 44) as tools.

Abstract: An indexable insert has one or more recesses formed in a frontside or backside surface which receives a surface of the head of a locking screw. When mounted, the insert is forced against respective support surfaces of an insert pocket. The locking screw is threaded into a counterbored tap hole to engage the insert and provide side locating forces and clamping forces to secure the indexable insert in the insert pocket. More particularly, the indexable insert has a shaped surface recess that mates to a complimentarily-shaped surface on the head of a locking screw and secures the indexable insert in multiple dimensions to a seating surface. A material removal tool and a method of mounting the indexable insert are also disclosed.

Abstract: A tool for machining borehole surfaces, includes a base body, a cutting device having at least one cutting die with at least one geometrically defined tool edge, and at least one guide surface for guiding the tool (1) inside the machined borehole. The at least one cutting die being tangentially fastened to the end face of the tool, and preferably embedded therein, The at least one cutting die is provided with a rounded cut for producing a support surface adjacent to the tool edge is produced, the support surface being arched with a radius that is smaller than the radius of the borehole to be machined, and the region of the support surface directly adjoining the tool edge resting against the borehole wall to be machined, and the end region of the support surface, as viewed in the peripheral direction of the tool, which is situated at a distance from the tool edge being situated at a distance from the wall of the borehole.

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 cutting mechanism includes a first main body and a second main body. The first main body includes a first base, a plurality of first cutter holders, and a plurality of first cutters. The first cutters are mounted on the respective first cutter holders. The first cutter holders are movably engaged with the first base in a manner that the first cutters mounted thereon are adjustably movable toward and away from the first base. The first cutters are rotatable relative to the respective first cutter holders about parallel first axes, and each of the first cutters has a first blade substantially parallel to the respective first axis. The second main body has a similar configuration as the first main body.

Abstract: A milling cutter and a cutting insert therefor for rough and smooth machining of a workpiece. The abstract of the disclosure is submitted herewith as required by 37 C.F.R. §1.72(b). As stated in 37 C.F.R. §1.72(b): A brief abstract of the technical disclosure in the specification must commence on a separate sheet, preferably following the claims, under the heading “Abstract of the Disclosure.” The purpose of the abstract is to enable the Patent and Trademark Office and the public generally to determine quickly from a cursory inspection the nature and gist of the technical disclosure. The abstract shall not be used for interpreting the scope of the claims. Therefore, any statements made relating to the abstract are not intended to limit the claims in any manner and should not be interpreted as limiting the claims in any manner.

Abstract: A cutting insert, a tool for holding a cutting insert, with a cutting insert and method of machining a workpiece with a tool holding a cutting insert. The abstract of the disclosure is submitted herewith as required by 37 C.F.R. §1.72(b). As stated in 37 C.F.R. §1.72(b): A brief abstract of the technical disclosure in the specification must commence on a separate sheet, preferably following the claims, under the heading “Abstract of the Disclosure.” The purpose of the abstract is to enable the Patent and Trademark Office and the public generally to determine quickly from a cursory inspection the nature and gist of the technical disclosure. The abstract shall not be used for interpreting the scope of the claims. Therefore, any statements made relating to the abstract are not intended to limit the claims in any manner and should not be interpreted as limiting the claims in any manner.

Abstract: A cutting tool includes a cutting insert, the insert including a cutting edge. The cutting tool also includes a cassette including an insert clamp for clamping the insert relative to an abutment surface of the cassette, and a generally cylindrical base portion. The cutting tool also includes a tool holder body, the tool holder body having a cylindrical opening in which the base portion of the cassette is disposed. A cassette clamp including a wedge is provided for clamping the cassette relative to the tool holder body. The cutting edge extends beyond a periphery of the tool holder body when the insert is clamped relative to the abutment surface of the cassette and the cassette is clamped relative to the tool holder body.

Abstract: The cutter assembly contains an axle having a number of parallel, equally spaced troughs along the axial direction, and a number of circular blade discs, each having a center hole threaded through by the axle. Each blade disc has a number of teeth along the circumference of the center hole corresponding and matching to the troughs of the axle. The blade disc has fewer blades than the teeth and the blade discs therefore can be mounted on the axle in different orientations so that their blades are spirally arranged. The axle of the cutter assembly has a fixed end and the blade discs can be sequentially installed to or removed from the other free end. The bearing at the free end has a smaller diameter so that the blade discs can be removed or installed directly passing through the bearing without removing it first.

Abstract: The present invention concerns a method and a device for processing calcinated carbon bodies such as anodes or cathodes for use in connection with electrolytic production of aluminium. The carbon bodies are processed using a rotating processing tool (1) that consists of a mainly circular disc with cutting edges (12, 12?) mounted at its periphery. The cutting edges may be made of polycrystalline diamond (POD) or an equivalent material. With the present invention it is possible to create slots in calcinated carbon bodies in an efficient manner with low tool wear.

Abstract: A cutting insert comprises first and second polygonally-shaped main faces arranged substantially parallel to one another, and a side face structure interconnecting the first and second main faces to define a peripheral edge. At least the first main face includes at least one projection extending to the peripheral edge, the projection formed by: a portion of the first main surface (defining a relief surface), a portion of the side face structure (defining a rake surface), and a portion of the peripheral edge (defining a cutting edge). The insert includes support surfaces defined by a portion of the second main face, and by portions of the side surface structure other than the rake surface.

Abstract: For producing forked roots of turbine blades, the turbine blades are, in a first step, roughed-in and smoothed (finished) on their outer faces in a single operation with two rigidly coupled disk milling cutters that are provided hard metal cutter inserts. In a second step, the forked root is formed with fingers by a set of rigidly coupled disk milling cutters that are provided with hard metal cutter inserts. The disk milling cutters form slots in the forked root. All of the slots are simultaneously opened (roughed-in) and smoothed (finished), the slots having parallel walls.

Abstract: Disclosed is a cutting tool with an asymmetric tooth form, and a method for making the same. Such tooth forms are useful for cutting tools such as band saw blades, circular saws, hacksaws and other saw type products. The tooth form of this invention can improve precision over prior art tooth forms by reducing manufacturing variability. The improved precision provides more consistent performance and a better quality of the cut surface. The non-symmetrical form ground tooth profiles cut designated chip profiles and thereby cut specific portions of the kerf much like a broaching application. This non-symmetrical ground tooth profile can alter the distribution of the downfeed cutting force allowing for more aggressive cutting or conversely, cutting at the desired rate with less downfeed pressure.