Abstract: The invention relates to a milling tool for gear milling. The tool body is equipped with tangentially mounted milling inserts having four cutting edges and two holes, only one of which is utilized for a fixing screw in two of totally four index positions. By locating a screw hole in the seat of the milling insert at a distance from the radial support surface of the seat that is greater than the distance between an individual hole and a distal end of the milling insert, a clamping force is provided by means of the inherent elasticity of the fixing screw. In such a way, the milling insert is pressed against the radial support surface. By means of a transversal eccentricity, the milling insert is also pressed against a tangential support surface in the seat. By means of this construction, the two holes in differently long milling inserts can be formed with equally large distances from distal ends. Thereby, one and the same tool body can be equipped with differently long milling inserts.

Abstract: A milling tool has single sided and indexable milling inserts having a round basic shape. Each milling insert has a plurality of tangentially spaced-apart and alternately usable cutting edges, which individually fall archedly from a first end, situated closest to an upper reference plane, to a lowest point, from which it again rises toward a second end. A reinforcing chamfer surface included in the cutting edge is formed with an increasing width in a direction from the first end of the cutting edge toward the second end.

Abstract: A tangential indexable cutting insert having eight lips which are distributed in pairs over four side faces of the indexable cutting insert, each lip being formed by a main lip which is formed by the intersection of one of the side faces with a base face, a secondary lip, which is formed by the intersection of the side face with an adjacent side face, and a corner edge (5) adjoining the main lip and the secondary lip, is distinguished by the fact that the main lip has a front portion (4a) which is located at the level of the corner edge, a rear portion which is located at a lower level closer to a center axis of the indexable cutting insert, and a transition portion between the front portion and the rear portion, the three portions being located in one plane.

Abstract: A chamfering insert has an elongated shape with a longitudinal insert axis and includes two opposite end portions and a cylindrically shaped insert peripheral surface which extends therebetween. The chamfering insert has a cutting edge, first and second opposite insert abutment surfaces, each of which extends perpendicularly to the insert axis, and an insert anti-rotation surface which extends parallel to the insert axis. The insert anti-rotation and abutment surfaces are located on one side of an imaginary plane, and the cutting edge is located, separately therefrom, on an opposite side of the imaginary plane.

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: Indexable cutting insert with a plate-like main body having two parallel main surfaces and a peripheral surface connecting the two main surfaces and with a plurality of sections angled with respect to one another, wherein four cutting edges that extend transversely to the main surfaces are provided on the peripheral surface at the transition to sections, that are angled with respect to one another, of the peripheral surface, and wherein the position of the cutting edges defines a quadrilateral in the plan view of the main surfaces. Fixing with more favourable leverages and permanently more precise positioning of the cutting edges are provided by the quadrilateral having in each case two short and two long sides and cutting edges oriented in each case in opposite directions in the peripheral direction at adjacent corners and oriented in each case in the same direction at diagonally opposite corners of the quadrilateral.

Abstract: A cutting insert includes: a polygonal shaped upper surface; a lower surface; a side surface connected to each of the upper and lower surfaces; and an upper cutting edge located at the intersection of the upper surface and the side surface. The upper surface alternately includes three major corners and three minor corners. The upper cutting edge includes: a corner cutting edge; a minor cutting edge inclined toward the lower surface as separating from the corner cutting edge at a first inclination angle; and a major cutting edge inclined toward the lower surface as separating from the minor cutting edge at a second inclination angle. The corner cutting edge, the minor cutting edge and the major cutting edge are located sequentially from a first major corner to each of first and second minor corners, both of which are adjacent to the first major corner.

Abstract: A cutting tool for grooving, parting and turning machining operations is capable of grooving to unlimited depths of cut. The cutting tool includes an indexable double-ended cutting insert having a downwardly extending insert clamping portion resiliently clamped in a self-retaining manner in an insert pocket so that chip formation is not hindered during such machining operations.

Abstract: A cutting insert for mounting in a socket on an insert holder of a milling cutter. The cutting insert has opposing top and bottom surfaces and a peripheral surface extending therebetween, forming one or two cutting edges. The peripheral surface has a front arcuate surface and a rear surface. The rear surface has a protuberance that extends in a direction away from a central region of the front surface. The protuberance is located in the socket. The socket includes a first socket side abutment surface for providing primarily axial support for the cutting insert against cutting forces acting in an axial rearward direction during a milling operation.

Abstract: A method for manufacturing a cutting insert green body from a sinterable powder, a tool set for manufacturing the cutting insert green body by that method and the green body manufactured by the tool set. The tool set has axially moving upper and lower punches and radially moving side punches. The side punches move slidably on die rods. The side punches and die rods move in channels in a base body on which a cover plate is mounted. The upper and lower punches move in through holes in the cover plate and base body, respectively. The die rods are stationary during compaction of the sinterable powder. The upper, lower and side punches form surfaces of the green body and the die rods form some of the edges of the green body. The green body can have undercuts and the edges formed by the die rods can be non-linear in shape.

Abstract: The invention relates to a milling cutting insert having a square or triangular shaped cutting face delimited in the plan view by a peripheral cutting edge having linear cutting edges (10) and curved cutting corners (11). According to the invention, each of the cutting edges (10) comprises an inclined region (10a) sloping toward a cutting corner (11), extending beyond the tangential point (14) determined by the point at which the linear cutting edge (10) transitions into a curved cutting corner (11), wherein adjacent thereto the cutting edge (10b) rises prior to the point (24) determined by a cutting corner angle bisector (15), wherein said rising region (10b) extends to a cutting edge maximum (17) on the other side of the cutting corner (11) on the adjacent cutting edge (10), which is linear in plan view, from where the cutting edge (10) continues, again inclined and sloping downward, resulting in a rotationally symmetric form having identically shaped cutting edges.

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: In a rotary cutting tool used for milling operations, a reversible indexable cutting insert is removably secured in a cutting body. The cutting insert has two opposing end surfaces interconnected by a continuous peripheral surface, including three side surfaces alternating with three corner surfaces. The side and corner surfaces intersect with both end surfaces at side and corner edges, respectively, with each side edge having a major cutting edge, and each corner edge having a corner and minor cutting edge. Each major and minor cutting edge slopes away from first and second end points, respectively, of its mutually associated corner cutting edge, towards a median plane. A first imaginary straight line extending perpendicular to the median plane and intersecting any one of the corner cutting edges at any point along its length except the second end point, passes through the median plane inside an insert boundary line.

Abstract: A milling insert having an upper side, an under side, a clearance face disposed between the upper and under side, and at least one cutting edge that includes two main edges, which converge toward a nose edge. The cutting edge is formed between two ground part surfaces situated on both sides of a cutting edge line, by on one hand, a primary clearance surface, which is included in the clearance face and is off-plane from a lower, secondary clearance surface, and, on the other hand, a peripheral chip surface, which is included in the upper side and situated on a higher level than a land disposed inside, and which is narrower than the primary clearance surface and has a width of at least 0.3 mm. The milling insert may advantageously be used in milling tools for gear hobbing.

Abstract: A broaching tool for machining a workpiece formed of a parallelogram shaped insert which fits within a slot formed in a body member. The insert has two juxtaposed corners either of which may be oriented at the distal end of the body member to function as a cutting edge. Repositioning of the insert to place either cutting edge in place is provided by flipping it over in its engagement within the slot. The inserts may be provided in a kit of differently configured inserts to yield different cutting widths.

Abstract: A cutting insert has a bottom supporting surface, a center cutting edge, two secondary cutting edges, realized on both sides of the center cutting edge and offset in relation to the center cutting edge, and two transition edges connecting the center cutting edge to the secondary cutting edge adjacent in each case. The two secondary cutting edges are realized in each case vertically offset and, where applicable, also offset in depth with respect to the center cutting edge and are laterally spaced from the center cutting edge. The transition edges, in each case in a non-edge-overlapping region, have at least over a portion an inclination n where 2°?n?20° in relation to a height direction which extends at right angles with respect to a main extension plane of the supporting surface.

Abstract: The invention relates to a cutting insert having two working surfaces facing away from each other and having a through hole extending between the working surfaces for receiving a fastening bolt, having a peripheral cutter rim having a cutting edge on each working surface and a central recess surrounded annularly by the cutter rim, having a number of segment-like molded parts corresponding to the number of different cutter positions of a working surface, for positioning the cutting insert in the corresponding cutting position.

Abstract: The present invention relates to an indexable cutting insert which is provided with at least two bearing surfaces for securing to a holder, said at least two bearing surfaces being each subdivided into individual subsurfaces, wherein the at least two bearing surfaces, with respect to a center plane of the cutting insert, forms at least three edges in one half of said cutting insert, said edges bounding the subsurfaces for the formation of crowning, approximating to convexity, of the at least two bearing surfaces.

Abstract: A cutting insert includes a top surface, a bottom surface, and a side surface extending between the top and bottom surfaces. The top surface is generally octagonal in shape and the side surface includes eight sides and eight corners. Four edge portions are formed at an intersection of the top and side surface. A first end of each edge portion begins along one of the eight sides at a non-zero distance from any of the eight corners and a second end of the edge portion ends along another one of the eight sides that is non-consecutive to the one of the sides. Each edge portion has a wedge angle that changes from a first angle at the first end of the edge portion to a different angle at the second end of the edge portion. A cutting tool using such an insert is also disclosed.

Abstract: A cutting tool comprising a tool holder (2) with a pocket (22) and a cutting insert (3) in the shape of a polygon having at least three side surfaces (33, 34, 35). The pocket (22) is provided with a base support surface (24) and at least two lateral support surfaces (25, 26). The cutting insert (3) is releaseably securable in the pocket (22) with two side surfaces of the insert (34, 35) abutting the two lateral support surfaces (25, 26) of the pocket (22). At least one of the side surfaces (33, 34, 35) and at least one of the lateral support surfaces (25, 26) are provided with a notch (37) and a complimentary rib element (28) extending in an axial direction of the insert and interacting for providing an end stop of the cutting insert (3) in the pocket (22).

Abstract: A cutting insert, and more particularly, an improved double-sided cutting insert is provided, which provides improved machinability obtained due to increased rake angle, without compromising coupling state. The double-sided cutting insert includes a top surface, a bottom surface, a plurality of lateral relief surfaces connecting the top and bottom surfaces, and a cutting edge formed by the top and bottom surfaces and the plurality of lateral relief surfaces, in which one or more lateral relief surfaces of the plurality of lateral relief surfaces are formed into three stages in sequence which are a first positive surface, a negative surface and a second positive surface in a direction from the top surface to the bottom surface.

Abstract: A cutting tool and a cutting insert each include a base surface and an anti-slip arrangement. Each anti-slip arrangement includes an actuator surface and non-parallel first and second abutment surfaces, and the actuator surface of the cutting tool is a surface of a clamp of the cutting tool. The cutting insert is mounted on the cutting tool via engagement of the base surfaces thereof and the clamp is operable to bias the actuator surfaces against each other and thereby force the first and second abutment surfaces against each other, for preventing slippage of the cutting insert along the tool's base surface.

Abstract: One example of the invention relates to an indexable insert comprising a base that has flanks and at least one face. According to one example of the invention, primarily the face(s) of the indexable insert, but not the flanks thereof, are coated with a very thick layer (e.g. thicker than 50 ?m) of a hard material in a PVD process.

Abstract: Method for milling a series of teeth of a toothed gear element with teeth in a straight line with a milling cutter rotatable about a milling cutter axis and having at its periphery interchangeable cutting inserts arranged such that, when the milling cutter is brought to the toothed gear element, they reach into gaps between adjacent teeth or generate these gaps, and a corresponding milling cutter. Cutting edges of mounted cutting inserts extend radially and perpendicularly relative to the milling cutter axis. During milling of the tooth profile, the milling cutter axis is aligned in a plane perpendicular to the longitudinal extent of the tooth back and, during entering of the cutting inserts, rotated about the milling cutter axis, into the surface or gaps between the teeth, and pivoted in this plane over an angular range covering all normals to the profile surface of the tooth to be produced.

Abstract: Milling insert and tool for center cutting milling of material. At least one first cutting edge is terminated in or adjacent to a center axis defined by the milling insert and includes a first cutting edge portion having a first radius that is essentially equally great for each point of the first cutting edge portion. The first cutting edge includes at least one second cutting edge portion that is plane or has at least one second radius for each point of the respective second cutting edge portion, the at least one second radius being greater than the first radius and that is situated between the first cutting edge portion and the center axis. One second cutting edge portion adjoins the first cutting edge portion, and one second cutting edge portion is terminated in or adjacent to the center axis.

Abstract: A cutting tool has a main body provided with a pocket part and a cutting insert. The pocket part includes at least one side wall and bottom surface which includes a pocket part base surface, a first pocket part inclined surface connected to an inner end of the base surface on an inside of the main body, and a second pocket part inclined surface connected to an outer end of the base surface on an outside of the main body. The cutting insert has an upper surface, a lower surface and side surfaces connecting the upper surface and the lower surface. The lower surface includes an insert base surface, first and second inclined surfaces inclined upwardly from first and second sides of the base surface, respectively. The cutting insert is seated in the pocket part such that the second inclined surface abuts the second pocket part inclined surface.

Abstract: A cutting insert includes a top surface, an edge surface and a cutting edge between the top and edge surfaces. The cutting edge is symmetrical about a centerline. The cutting edge has a first edge radius at a first point at the centerline of the cutting edge and a different, second edge radius at second points on opposite sides of and remote from the centerline of the cutting edge. The first edge radius is larger than the second edge radius. The top surface includes a land surface between the cutting edge and a remaining portion of the top surface. The land surface defines a surface that is distinct from the remaining portion of the top surface. A width of the land surface behind the cutting edge at the first point at the center of the cutting edge is different than the width of the land surface behind the second points.

Abstract: The present disclosure relates to a quadrangular indexable drill insert. The drill insert includes a substantially flat top surface, a bottom surface and a side surface adjoining the top and bottom surfaces. The side surface comprises four identical cutting edges intersecting the top surface; each cutting edge comprises a first part edge oriented inwardly towards axis of the drill body. A second part edge tangential to an imaginary inscribed circle diameter connected to the first part edge through a convex curve. A third part connected to the second part edge through concave curve and a fourth part edge connected to the third part edge though a convex curve. The insert further includes a curved nose portion at four corners, each adjoining a first part edge of one cutting edge with a fourth part edge of a succeeding cutting edge.

Abstract: The cutting insert is provided with an insert main body, a cutting edge formed at a circumferential edge of the rake face of the insert main body to have a corner edge and two side edges arranged on the both sides thereof, a protrusion portion formed on the rake face, and a pair of convex portions formed on both sides divided by a bisector of the corner edge. Each of the pair of convex portions is provided with a first wall surface facing the corner edge of the cutting edge, and a second wall surface facing the side edge. On the rake face closer to the corner edge than the pair of convex portions, a recess having a rear wall portion which extends so as to cross the bisector between the corner edge and the convex portion is formed.

Abstract: A cutting insert includes a through hole passing through oppositely facing upper and lower faces which have dissimilar structures, and are connected by a plurality of side faces. The upper face has an upper cutting edge formed on the outer periphery thereof, a flat land at the highest level disposed adjacent to and along the upper cutting edge, and a groove region at a level lower than that of the upper cutting edge and disposed between the flat land and the through-hole. The lower face has chip breakers formed on parts of peripheral regions which include each of the corners made by adjacent side faces, lower cutting edges formed on the outer periphery of the lower face along the chip breakers, and a flat supporting surface formed on the peripheral regions between adjacent chip breakers and continuously on regions inward of the chip breakers.

Abstract: A hexahedral insert has top and bottom faces and two pairs of opposing side faces with main cutting edges formed on the borders of the top and bottom faces to the side faces and a screw hole passing through each central portion of the top and bottom faces. The top and bottom faces are flat planes parallel to each other; each of the side faces consecutively from top to bottom includes an upper land portion, an upper inwardly-inclined portion, a flat support surface, a lower inwardly-inclined portion, and a lower land portion. Each of two adjacent side faces has a corner surface therebetween which forms corner edges on the borders to the top and bottom faces. The cutting insert enhances the cutting power by reducing cutting resistance and prevents scratches on a machined surface.

Abstract: An insert comprises an insert main body having an upper surface and a plurality of side surfaces, a cutting edge located between both ends of a ridge which is between at least one side surface among the side surfaces and the upper surface, a high-positioned portion located at one end of the ridge, and a low-positioned portion located lower in the thickness direction of the insert main body than the high-positioned portion and located at the other end of the ridge. The cutting edge comprises a first flat cutting edge having substantially the same height as the high-positioned portion, and a tilted cutting edge having a height decreasing from the high-positioned portion toward the low-positioned portion.

Abstract: A polygonal cutting insert for right angle machining has opposed upper and lower surfaces, a peripheral side surface interconnecting the upper and lower surfaces and having curved first and fourth side surfaces and plane second and third side surfaces, and main and secondary cutting edges alternately formed along the outer peripheries of the upper and lower surfaces. The adjacent main and secondary cutting edges form a right angle therebetween. The first side surface adjoins the main cutting edge of the upper surface. The second side surface adjoins the secondary cutting edge of the lower surface. The third side surface adjoins the secondary cutting edge of the upper surface. The fourth side surface adjoins the main cutting edge of the lower surface. The cutting insert can be mounted on a milling cutter at a positive axial rake angle.

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: A triangular cutting insert has first and second surfaces, a midplane, a peripheral surface, with an insert center axis. The peripheral surface has alternating relief flanks and corners. A major cutting edge formed between each relief flank and the first and second surfaces, connects at a corner to a wiper edge included in a bounding plane of the insert. The wiper edge further connects to a transitional slope directed toward the midplane and an adjacent major cutting edge. Viewed along the insert center axis, an insert footprint is symmetrical to each corner bisector, and each major cutting edge is perpendicular to the associated secondary slope. Viewed perpendicular to the bisector, the relief flank is in a peripheral plane, and the transitional slope is between the peripheral plane and the insert center axis. Viewed along the corner bisector, each visible major cutting edge forms a first angle with the bounding plane.

Abstract: A cutting insert having a base portion structured to be coupled to a tool body, the base portion having a leading end, a trailing end, and a mounting face extending therebetween. A number of cutting portions extend from the base portion opposite the mounting face. Each cutting portion of the number of cutting portions includes a cutting face disposed adjacent the leading end of the base. The cutting face having an angled portion disposed at a first angle with respect to a reference plane oriented parallel to the leading end and perpendicular to the mounting face. The cutting face also having a curved portion disposed between the angled portion and the base portion.

Abstract: The invention relates to a thread cutting insert (1) comprising a upper face (20) and a lower face (21), at least three lateral walls (31, 32, 33, 34) extending between the upper face (20) and the lower face (21), and at least two cutting edges (41, 42, 43, 44) formed in a transition region between two of the lateral walls (31, 32, 33, 34) and the upper face (20), wherein at least one of the cutting edges (41, 42, 43, 44) is sandwiched between a first supporting surface (71a, 72a, 73a, 74a) and a second supporting surface (71 b, 72b, 73b, 74b) provided on the respective lateral wall (31, 32, 33, 34). Further, the invention relates to a tool holder for receiving a thread cutting insert (1).

Abstract: The present invention relates to a substrate plate for a double-sided indexable cutting insert, which is to be fixed within a tool to be equipped with at least one cutting insert, where the tool has at least one seat for at least one indexable cutting insert, where the substrate plate has a plate-like fundamental shape with a round or polygonal outline and with a lower contact area, generally planar, which can be placed in contact with one area of the seat, and with an upper support area bearing the indexable cutting insert, where the contact area and support area have connection to one another via side walls defining the periphery of the substrate plate.

Abstract: A cutting tool has an insert holder for retaining a tangential cutting insert in an insert pocket. The insert pocket has a bottom surface, a rear surface and a base surface. The base surface has three abutment protuberances that extend from the base surface. Each base abutment protuberance has a respective base abutment surface. The three base abutment surfaces abut the cutting insert at three points to provide stable seating of the cutting insert in the insert pocket.

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 cutting tool for machining a workpiece. The cutting tool comprises a holder and at least two cutting inserts which are separated from each other by a spacer element. The cutting tool may be used to produce two or more bevels (and/or joints and/or grooves) at precisely defined spacings in only one operation. Through the use of spacer elements of different lengths, it is possible to produce bevels at different spacings. The spacer element preferably has an interface which comprises only radial contact surfaces, which run parallel to a longitudinal axis of the spacer element, and a substantially flat axial contact surface, which runs transverse to the longitudinal axis. The length of the spacer element can therefore be shortened on the rear side of the spacer element without destroying said interface.

Abstract: An indexable hexahedral cutting insert has opposing top and bottom abutting faces, opposing rake faces connecting to opposing side faces, and a central hole passing through the abutting faces. Each rake face is wider in the top-to-bottom direction at a different one of the side faces. Arcuate corner portions with one-directional curvature are formed along intersecting portions between the abutting faces and the side faces. Each abutting face has first and second wedge-shaped inclined planes adjoining and inclining toward corresponding first and second rake faces. Each inclined plane has a base side at a cutting edge formed at the border with one of the rake faces, and a width which gradually increases from one corner portion to the opposite corner portion along the abutting face. Each corner portion has an associated inclined arcuate surface adjacent to the wide end of the wedge-shaped inclined planes.

Abstract: A single-sided tangential cutting insert has a peripheral side surface with N identical major sides. The cutting insert has 360°/N rotational symmetry about an insert axis passing through top and bottom surfaces of the insert, where N is an integer greater than 2 and each major side is located between and merges with an adjacent major side. A cutting edge is formed at the intersection of a relief surface and a rake surface. The rake surface is located in the peripheral side surface and extends in an inward direction of the cutting insert from its associated cutting edge to a side surface of the associated major side. At least a portion of the relief surface is located in the top surface.

Abstract: An indexable milling insert comprising a polygonal shaped body having an upper surface, a lower surface and side surfaces. The upper surface includes a peripheral land intersecting the side surfaces has a predetermined width (a) sloping downward at a predetermined angle (X). A support-face plateaux extending from an end of the peripheral land up to a chip shaping surface has a predetermined angle. The angle (X) of the peripheral land is more positive than the angle (Y) of the support face plateaux.

Abstract: A triangular cutting insert has first and second surfaces, a midplane, a peripheral surface, with an insert center axis. The peripheral surface has alternating relief flanks and corners. A major cutting edge formed between each relief flank and the first and second surfaces, connects at a corner to a wiper edge included in a bounding plane of the insert. The wiper edge further connects to a transitional slope directed toward the midplane and an adjacent major cutting edge. Viewed along the insert center axis, an insert footprint is symmetrical to each corner bisector, and each major cutting edge is perpendicular to the associated secondary slope. Viewed perpendicular to the bisector, the relief flank is in a peripheral plane, and the transitional slope is between the peripheral plane and the insert center axis. Viewed along the corner bisector, each visible major cutting edge forms a first angle with the bounding plane.

Abstract: The invention relates to a ready-to-use ceramic blanking die (1), which is produced by sintering a blank, as an indexable insert, comprising an upper face and a lower face (2, 3) which each have a support surface (4) for installation in a tool holder of a cutting tool, lateral surfaces (5) that connect the upper and lower faces (2, 3), and cutting edges (6) for machining workpieces.

Abstract: An indexable cutting insert has opposing rhombus-shaped upper and lower surfaces and a peripheral side surface therebetween with alternating obtuse and acute corner surfaces. A nose cutting edge is formed at the intersection of the upper surface with each of the two acute corner surfaces. The lower surface includes a base surface from which a central boss and exactly two engagement ridges protrude. Each engagement ridge extends from the central boss to intersect with its respective acute corner surface, and the base surface is divided into two base sub-surfaces. The insert may be clamped against a seating surface of a tool holder pocket solely by the engagement ridge located closest to the operative nose cutting edge making contact with a corresponding single engagement groove, and the two base sub-surfaces making contact with two coplanar raised support surfaces.

Abstract: An indexable cutting insert has opposing side surfaces and two cutting portions, one of which is operative when the cutting insert is retained in an insert holder. An insert bore opens out to both side surfaces. Two major abutment surfaces located on opposite sides of the insert bore extend from one of the side surfaces, one major abutment surface being closer to the operative cutting portion than the other. Two minor abutment surfaces extend from the same side surface. In a plan view of the side surface, the minor abutment surfaces are transverse to the two major abutment surfaces and also to base abutment surfaces associated with the major and minor abutment surfaces.

Abstract: A cutting insert is provided. The cutting insert has a top surface, a side surface, and a bottom surface. An intersection between the top surface and the side surface defines a substantially circular cutting edge. The cutting edge includes at least one wiper edge and the side surface includes at least one wiper surface provided behind the wiper edge.

Abstract: A double-sided cutting insert has top and bottom surfaces and two major side surfaces connected by two minor side surfaces. Each major side surface has two distinct relief surfaces which are inclined in opposite directions and merge at a transition surface extending between top and bottom surfaces. A first major cutting edge is defined between the first relief surface and the top surface and a second major cutting edge is defined between the second relief surface and the bottom surface. Each major cutting edge is tangent to an associated transition cutting edge defined between the transition surface and the insert top or insert bottom surface. An insert holder for the insert has three support sections accordant with three abutment sections of the insert.