Abstract: A rotary cutting tool with a longitudinal axis includes a shank portion, a cutting portion, and a plurality of chip-breaking features. The cutting portion includes a plurality of blades and a plurality of flutes. The blades and flutes extend substantially along the length of the cutting portion and have unequally-indexed spacing. The flutes have a tapered depth along the longitudinal axis. Each blade includes a leading face, a trailing face, and a land surface that extends between the leading face and the trailing face. A plurality of chip-breaking features having a multi-radius profile are disposed in the land surfaces of the blades and are distributed in an offset chip breaker pattern among the blades such that each chip-breaking feature on one blade is not directly behind the chip-breaking features on immediately adjacent blades. The chip-breaking features on each blade are equidistant from each other.

Abstract: A rotating cutting tool (10, 110) includes a body (12, 112) with a longitudinal axis (14, 114) and at least one flute (16, 116) and one active part (18, 118). Each active part has a peripheral surface including: a radial cutting edge (20, 120) that is at a cutting distance (Rc) from the longitudinal axis, a clearance face (30, 130) that is at a final clearance distance (Rd) from the longitudinal axis, and a control face (40, 140) that is at a penetration control distance (Rp) from the longitudinal axis. These distances satisfy the relation: 0<?p<?d, with ?p=|Rc?Rp| and ?d=|Rc?Rd|.

Abstract: A negative insert for cutting machining has a top side, a clearance side perpendicular thereto and a cutting edge in a region interconnecting these sides and extending substantially in parallel with these sides. The insert has further a flat or rounded chamfer connecting the cutting edge to the clearance side on at least one lateral side of the insert in the region of a corner thereof. The chamfer makes an angle of 1°-15° with the clearance side for enabling application of the chamfer substantially tangentially to a work piece to be machined for bearing of the insert in two dimensions against the work piece during cutting machining operation carried out by the insert.

Abstract: A method of grooving a work-piece of superalloy uses a grooving cutting insert at least partially covered with a Cubic Boron Nitride (CBN) layer and having one or more interior ducts formed therein which open out to the insert's rake face at one or more corresponding openings. One or more coolant fluid streams, conveyed via these interior ducts at a pressure of no less than 200 bars, are directed upwardly and outwardly toward an interaction area between a cutting edge of the cutting insert and the work-piece, to thereby limit lengths of work-piece chips created during the grooving operation. The openings of the cutting insert's interior ducts may be located between 0.5-3.0 mm from the insert's cutting edge.

Abstract: A bit for simultaneously cutting and chamfering a pipe is provided having a shaft defining an axis and having a shank portion at its proximal end and a working portion at its distal end. The working portion has a distal-most depth-cutting portion with at least one axially-offset leading cutting edge at the circumference of the shaft, a substantially axially-parallel lateral cutting edge extending from the distal end along the length of the depth-cutting portion and at least one chamfer-cutting portion between the depth-cutting portion and the shank portion.

Abstract: A surface coated member and its manufacturing method are provided. The member has a substrate and a coating layer on the substrate surface. A plurality of first phases and a second phase exist in the coating layer surface. The first phases are composed of at least one compound containing at least one element selected from metals in Groups 4, 5 and 6 of the periodic table, aluminum and silicon, and oxygen. The second phase is composed of at least one compound selected from carbide, nitride and carbon nitride of at least one element selected from the abovementioned metals, aluminum and silicon. A cutting tool includes the surface coated member and has a rake face on the upper surface, a flank face on the side surface, and a cutting edge at a crossed ridge portion between the rake face formed by at least the coating layer surface, and the flank face.

Abstract: A cutting tool having a cutting portion located proximate to one end. The cutting tool including a recessed chip flute formed along the shank of the tool away from the cutting edge. The tool includes a chamfering cartridge which is clamped to the tool shank along the chip flute. The chamfering cartridge performs a chamfering or deburring operation while allowing chips from the cutting portion to pass through the flute and away from the tool and workpiece.

Abstract: A tool and a cutting insert for chip removing machining, such as milling, turning or the like. The cutting insert includes a chip-removing main edge, which is separated from a center of the cutting insert and from which a clearance surface extends toward a transition to an underside in the form of a connecting surface, in which an elongate engagement means, e.g., a ridge, is included, which is situated nearer the transition than the center of the cutting insert, and includes a flank having the purpose of transferring cutting forces in the direction transverse to the length extension of the ridge. The ridge is the only active engagement means of an imaginary triangle between the center of the cutting insert and opposite ends of the transition, besides which the flank has a cross section-wise convex shape. In such a way, the active edge of the cutting insert is located in a desired exact position in relation to the tool, even if the cutting insert is impaired by minor form defects.

Abstract: A cutting insert includes a polygonal body of a hard, wear-resistant material, which has an upper surface and a lower surface, and a plurality of edge surfaces uniting said surfaces. At least one chip-breaker arrangement is provided in at least one of the lower and upper surfaces. At least one rounded cutting corner, provided with a nose-cutting edge, is formed at a nose portion at the area of the intersection area of two edge surfaces. The cutting corner defines a bisector. The chip-breaker arrangement includes two elongate chip-breaker segments having an opening provided therebetween intended to give room for a cooling jet directed toward the opening.

Abstract: An indexable insert with nicks for a rotary tool includes plurality of nicks are provided in an upper surface serving as a flank face. The nicks have their ends in the upper surface. The nicks divide a ridge line serving as a main cutting edge in a longitudinal direction. Each nick has a width gradually increasing toward the end.

Abstract: A cutting tool including an end-milling tool body having a distal end, and a tip mounted to the distal end. The tip is a substantially planar plate including a first edge corner having an angle of less than 90°, a second edge corner having an angle of greater than 90°, and a third edge corner and a fourth edge corner each having a corner angle of 90°. Alternatively, a plurality of tips are mounted to the distal end, where each tip has first, second, and third straight cutting edges. The second edge being at less than 90° with the first edge and the third edge being at less than 90° with the second edge, and at least one of a first corner between the first and second edges and a second corner between the second and third edges is arranged to project along an outer periphery of the distal end.

Abstract: A glass cutting tool includes a cutter body provided at a bottom portion thereof with a hole-cutting portion. The hole-cutting portion has a circular cross section and a recessed hole recessed inwardly from a bottom end thereof, such that the contact area between the hole-cutting portion and a workpiece of glass panel can be minimized when the hole-cutting portion is rotated to work on the glass panel, thereby avoiding cracking of the glass panel during working and lowering the defect rate and processing cost.

Abstract: The present invention provides an indexable insert (1) which includes a body (8), a base layer disposed on the body (8), and a wear-indicating layer disposed on a part of the base layer, wherein at least one surface of the body (8) serves as a rake face (2), at least one other surface of the body serves as a flank face (3), the rake face (2) being connected to the flank face (3) with a cutting edge (4) therebetween, the base layer has a color different from that of the wear-indicating layer, and the wear-indicating layer is disposed on the rake face and on the base layer entirely or partially in a region A2 other than a region A1 that extends to a distance of 0.2 mm or more and less than 4.0 mm from the cutting edge.

Abstract: A basic body for tools for chip removing machining, including an internal duct, and an inlet including a female thread for the supply of liquid to the duct. The female thread of the inlet is formed in a cage, which is inserted in a seating delimited by an endless inner wall as well as a bottom, the duct mouthing in the seating.

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: A turning insert includes at least one cutting surface having at least one corner area. The corner area defines a nose angle in the range of 30-85°. The corner area includes a beveled edge. A bisector of the nose angle intersects the beveled edge at a center thereof at a right angle.

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 superhard sintered body containing cubic boron nitride is bonded to an apical angle part of a tool body having a polygonal shape, and an edge and a chip breaker are formed on the superhard sintered body. A chamfer is formed on the intersection between the upper surface and the side surface of the superhard sintered body, the chip breaker has a protrusion, and an angle ? formed by ridges on the apex of the protrusion or a tangential line at a point bisecting the ridges and a bisector for the apical angle and the ratio of the distance between a first intersection between the two ridges on the apex of the protrusion and an extreme point of the first ridge to the distance between a second intersection between a straight line passing through the first intersection and the extreme point and the outer periphery of the tool body and the first intersection are in prescribed ranges.

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 milling cutter for sharpening welding electrodes includes a tool body, and a plurality of cutting inserts fastened to the tool body. The inserts include a center cutting insert and at least two peripheral cutting inserts. Each peripheral cutting insert includes at least one cutting edge. The center cutting insert defines: two oppositely facing principle planes, two cutting edges disposed adjacent respective ones of the principle planes, and a concave surface extending between such cutting edges. The center cutting insert can cut (sharpen) the end surfaces of two welding electrodes simultaneously.

Abstract: A face milling insert comprising a pair of main cutting edges which are spaced apart from a center and meet at a corner where they transform into a surface wiping secondary edge, which is intersected by a bisector defining the corner between the main cutting edges, inside each main cutting edge a slope surface being formed, which slopes towards a countersunk bottom surface in a chip surface. A shoulder, having a top side situated at a higher level than the bottom surface, extends inwardly from the secondary edge, the slope surface of the main cutting edge that actively co-operates with the secondary edge, terminating at the shoulder.

Abstract: A method for producing metal fibers includes a machining production method using at least one rotating tool. A device for producing metal fibers, a filter material having such fibers, a method for producing the material, a particle filter using such material, a motor vehicle equipped with the filter, and a fiber, are also provided.

Abstract: Cutting tool, such as for end-cut and longitudinal turning, and for cutting grooves in a workpiece, which has an end or major cutting edge and two side or minor cutting edges, each of which are connected to the end or major cutting edge by two outer corners. Additional corner chip-breakers are formed between each of the outer corners and the ends of a chip-guiding rib.

Abstract: A replaceable-blade cutting insert for corner milling cutters has a first and second surface; a third and fourth surface connected to a first side edge and a second side edge thereof respectively; and a fifth and sixth surface connected to a first edge and a second edge of the first surface and the second surface respectively. The first surface is used as rake face, the third surface is used as an outer perimeter flank face, and the fifth surface is used as a forward flank face. A twisted surface is disposed on a section of the third surface, forming a ridge line that acts as a main cutting edge intersecting with the first surface and interposed between the third and first surface. The first and second surface can be positioned with a height offset relative to each other so that at least one set of diagonal corners are projected.

Abstract: A throw-away tip of which two principal surfaces each comprises a land surface 5 provided along the periphery thereof, a central surface 7 provided on the inside of the land surface 5, a recess (a chip breaker groove) interposed therebetween, and at least one protrusion 8 that extends from the central surface 7 toward the land surface 5, wherein height of the land surface is made equal to the height of at least the top surface of the protrusion 8 so that at least the top surface of the protrusion of the central surface and the land surface both serve as contact surface.

Abstract: A droplet-free wear-resistant coating is manufactured by depositing a wear resistant nitride coating containing a nitride layer which contains at least one metal or metal compound of a metal selected from the group consisting of Ti, Cr, Al, Si and combinations thereof, on a surface of a substrate by cathodic-arc evaporation using a Venetian blind filter system in front of an arc cathode; to reduce metal microdroplets and/or metal microparticles in the wear resistant coating compared to an wear resistant coating obtained without a Venetian blind filter system.

Abstract: A round cutting insert includes a bottom surface, a clearance side surface and a top surface. The top surface includes a chip control feature in the form of a continuous, circumferential depression formed by a substantially planar bottom surface and a pair of upward sloping substantially planar side walls that form an angle with respect to the top surface. The chip control feature may also include a plurality of radially offset bumps located in the depression. The bumps may have the same size and shape, or may have a different size and shape. The top surface also includes an elevated island having one or more indexing marks for easy indexing of the cutting insert.

Abstract: The present invention relates to an indexable milling insert and a milling tool for chip removing machining. The milling insert is intended to be able to mill substantially perpendicular corners in a work piece. The milling insert comprises an upper side, a lower side and edge surfaces extending therebetween. The upper side and the lower side are substantially identical. An imaginary circle inscribed in the milling insert touches the milling insert periphery in four to six points. Lines of intersection between the edge surfaces and the sides form relative to each other substantially perpendicular main cutting edges and minor cutting edges. Each of the sides includes a support surface, each of which being provided in a plane. Each minor cutting edge projects from the plane of the associated support surface. Each major cutting edge intersects the plane of the associated support surface.

Abstract: A machine tool capable of removing chips from the machine with a simple structure. A continuous groove is formed at the lowest position of a splash guard surrounding a bed so as to extend from a rear end of the machine along one side portion, a front portion and the other side portion of the bed. Machining fluid brought into the groove from a coolant tank flows along the groove and is recovered into the coolant tank. A bottom of the groove has a continuous slope such that an inlet side where the machining fluid is brought in through the discharge port is highest (or the groove is shallowest) and a discharge side for the coolant tank is lowest (or the groove is deepest). The chips dropped in the groove are discharged together with the machining fluid into the coolant tank where the chips and the machining fluid are separated.

Abstract: In a method for producing a surface that is intended to form part of a coupling for use in chip removing machining, the surface includes a number of groove sets to allow locking by shape against another surface provided with grooves. Each groove set has a main direction, and the main directions of adjacently situated groove sets intersect. The number of groove sets are at least three, each groove set is produced in a separate cutting operation, and an equally large part of the surface is machined during each cutting operation. A surface that is intended to form part of a coupling for use in chip removing machining is also disclosed.

Abstract: A metal cutting insert that is primarily intended for turning operations includes an upper surface, a lower surface substantially parallel with said upper surface, and at least three side surfaces extending between said upper and lower surfaces. A transition between two adjacent side surfaces forms a rounded nose radius surface at a cutting insert corner. The cutting insert includes a peripheral land bridging the upper and side surfaces at least at the corner portion at a chamfer angle. An intersection of the land and the nose radius surface forms a nose cutting edge. The nose cutting edge is defined by at least one radius. The cuffing corner includes at least one curved wiper edge. The chamfer angle in a cross-section at the nose cutting edge is larger than the chamfer angle in a cross-section a distance away from the nose cutting edge.

Abstract: A disposable cutting insert for a boring cutter can reduce the roughness of a cut surface and achieve a mirror-like surface effect. The disposable cutting insert has a long curved blade edge, and the radius vertex of the long blade edge is deviated slightly from an external side of a vertex of the radius of cutting edge. A short curved blade edge is formed between the radius arc vertex and the radius arc vertex of the cutting edge. The vertical distance of the short curved blade edge is greater than the feed rate. The cutting edge cuts the work piece and the short curved blade edge can scrape a small size of material precisely for scraping the peak cut by the cutting edge and lower the height of the peak, so as to lower the surface roughness, and produce a mirror-like surface for an internal periphery of a bored hole.

Abstract: An uncoated cutting tool that comprises a body containing a pocket. A polycrystalline cubic boron nitride blank has a cutting tip. The blank is brazed into the pocket using a braze alloy whereby there is a braze joint between the body and the polycrystalline cubic boron nitride blank. The braze alloy has a liquidus temperature of at least about 900 degrees Centigrade wherein the braze alloy is selected from the group comprising a nickel-gold braze alloy containing nickel and gold, a copper-gold braze alloy containing copper and gold, a silver-titanium braze alloy containing silver and titanium, and a silver-palladium braze alloy containing silver and palladium.

Abstract: In this thread cutting insert, on a common edge section of front and back faces of an insert main body, there is formed a pair of cutting edge sections that project from the edge section when seen from a direction facing the front and back faces, and on at least two of four projecting faces that respectively face the front and back face sides of the pair of these cutting edge sections, there is formed a thread cutting edge with the projecting face serving as a rake face.

Abstract: A double-sided reversible and indexable cutting insert has identical opposing first and second end faces and a peripheral side surface extending therebetween. A clamping through-bore extends between, and opens out to, the first and second end faces. The cutting insert has a median plane between the first and second end faces, and a through-bore axis extending perpendicularly through the median plane. The cutting insert also has a Y-fold rotational symmetry about the through-bore axis. The peripheral side surface has Y major side surfaces and Y minor side surfaces, each minor side surface interconnecting two adjacent major side surfaces. Each minor side surface is a section of a single cylindrical surface having a given radius, the given radius being greater than a minor side surface distance of each minor side surface from the through-bore axis.

Abstract: A cutting insert includes a polygonal body of a hard, wear-resistant material, which has an upper surface and a lower surface, and a plurality of edge surfaces uniting said surfaces. At least one chip-breaker arrangement is provided in at least one of the lower and upper surfaces. At least one rounded cutting corner, provided with a nose-cutting edge, is formed at a nose portion at the area of the intersection area of two edge surfaces. The cutting corner defines a bisector. The chip-breaker arrangement includes two elongate chip-breaker segments having an opening provided therebetween intended to give room for a cooling jet directed toward the opening.

Abstract: In a cutting insert and a milling tool, where the cutting insert is to be on-edge mounted to the tool, the cutting insert includes a polygonal body of wear resistant material. The body includes a first side surface and a second side surface opposing one another and therebetween a number of end surfaces. The intersection of two end surfaces form a cutting edge at a corner portion. The first side surface is substantially planar and the second side surface connects to raised portions at corner portions. The first side surface is greater than the second side surface.

Abstract: A double-sided wear insert, for a knife assembly that includes a knife, a clamp, and a holder. In one embodiment, the wear insert can be turned end-for-end, and in another embodiment the wear insert can be flipped up-side down, to double the service life of the part.

Abstract: The present invention relates to a cutting tool insert of a generally polygonal shape provided with a ceramic tip in a recess in at least one of its corners with a bottom surface and at least one side surface. At least the bottom surface of the recess is provided with rails with a height h being from about 50 to about 100 ?m, width w being from about 100 to about 200 ?m and spaced at distance 1 from about 0.75 to about 1.25 mm. The invention also relates to a method of making such an insert using a grinding wheel of a suitable profile before or after sintering or in the pressing operation.

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: A cutting insert having a front cutting edge and a connecting surface including male- and/or female-like engagement portions, in order to rigidly secure the cutting insert, a geometrically predetermined reference locus serving as a force-application spot for the clamping of the cutting insert. Simultaneously active engagement portions are of only two types—a first, elongate engagement portion, which is located between the front cutting edge and the reference locus, and a second, elongate engagement means, which is oriented at an angle to the first engagement portion and situated at a greater distance from the front cutting edge than the reference locus. In such a way, it is guaranteed that a tightening force always is applied to the cutting insert in a substantially triangular area, which is defined by the free ends of the engagement portions. Furthermore, a tool for chip removing machining, as well as an attachment, e.g., a shim plate, for such tools is provided.

Abstract: A process by which nanostructured monolithic bodies can be produced in a single continuous operation, as opposed to multi-stage deformation processing. The process generally entails continuously producing a chip having a nanostructured microstructure by engaging a solid body with a cutting edge of a tool while the solid body and the cutting edge move relative to each other, and simultaneously extruding the chip in the immediate vicinity of the cutting edge, such as with a constraining member, as the chip is separated from the solid body by the cutting edge to continuously plastically deform the chip and produce a nanostructured monolithic body immediately downstream of the cutting edge. The shape and size of the chip can be simultaneously controlled by the extrusion process so that the nanostructured monolithic body has a predetermined geometry. The nanostructured monolithic body can be in the form of a product suitable for immediate use, or undergo further processing to yield a product.

Abstract: The present invention relates to a cutting insert, a cutting tool for chip removing machining, a shim as well as a method for mounting a cutting insert. The cutting tool includes a holder equipped with at least one insert pocket including a base surface, at least one circular shim including opposite first and second surfaces, and at least one cutting insert, which includes a circular cutting edge formed at a transition between an upper side and an edge surface of the cutting insert. The upper side includes a chip surface comprising at least one chip breaker portion and the edge surface includes a clearance surface. The shim is provided between the base surface of the insert pocket and the cutting insert. The cutting tool includes a clamping arrangement for holding its parts together. The chip breaker portion is provided at a varying distance from the associated cutting edge. The shim and the cutting insert include at least one pair of cooperating projection and recess for indexing of the cutting insert.

Abstract: A polygonal indexable insert has cutting edges that run rectilinearly or in a curved manner in a plane perpendicular to a locating surface and that fall from cutting corners having acute angles to cutting corners with obtuse angles following one another alternately. The cutting edges have a rake face which first of all falls and then rises with a back region. The back region together with a center part of the indexable insert forms an intersection curve. The intersection curve lies at a distance a from the starting point of the associated cutting edge in the region of the cutting corners in each case at their intersection with the angle bisector. It is at a distance b from the end point of the associated cutting edge in the region of the cutting corners in each case at their intersection with the angle bisector. The distance b is greater than the distance a.

Abstract: A cutting element for the machining of metallic workpieces has a body formed with an upper and a lower face of which at least one is designed as a mounting face, and a side face that connects the upper and the lower faces, that is perpendicular thereto, and that together with the upper and lower faces forms cutting edges usable for machining. Each cutting edge has two parallel long straight cutting-edge sections and two parallel short straight cutting-edge sections. Cutting corners connect respective adjacent long and short cutting-edge sections. One part of each long straight cutting-edge section is recessed parallel to the side faces by a distance in relation to the adjacent edge sections as well as indented perpendicular to the side faces by a distance.

Abstract: An indexable cutting insert includes a first component with an outer or top surface and side surfaces. A third component is mirror symmetric with respect to the first component about a vertical or y-axis of the cutting insert. A second component is disposed between the first and third components. Multiple cutting edges are defined at an intersection between the side surfaces and the top surface, wherein the cutting edges define a positive axial rake angle. In one embodiment, the first and third components are in the shape of a polygonal with a star appearance, and the second component is in the shape of a square. The first and third components are offset from one another by a first offset angle, while the second component is offset from the first and third components by a second offset angle to allow the cutting insert to be indexable.

Abstract: A toolholder at least one cutting insert mounted within a pocket about the peripheral wall of the cutter body. The body includes a pocket having an angled retention ledge which provides acts, in conjunction with a fastener, to securely retain an insert mounted therein. The insert has an angled edge which conforms with and works in conjunction with the toolholder pocket.

Abstract: A cutting insert includes a plurality of consecutively disposed, interlinked individual cutting inserts that can be brought into use successively through a respectively interposed predetermined breaking point by detaching a respectively preceding individual cutting insert in cutting use. The cutting insert has a blade-shaped construction with lower and upper bearing surfaces for being held in an elongated cutout with lower and upper opposing surfaces in a basic tool body of a grooving and cut-off tool or disk milling cutter. Each individual cutting insert is provided with a positioning device that cooperates with a complementary positioning device of the basic tool body. A grooving and cut-off tool or disk milling cutter and a wrench for the cutting insert, are also provided.

Abstract: A metal cutting insert that is primarily intended for turning operations includes an upper surface, a lower surface substantially parallel with the upper surface, and at least three side surfaces extending between the upper and lower surfaces. A transition between two adjacent side surfaces forms a rounded nose radius surface at a cutting insert corner. The cutting insert includes a peripheral land bridging the upper and side surfaces at least at the corner portion at a chamfer angle. An intersection of the land and the nose radius surface forms a nose cutting edge. The nose cutting edge is defined by at least one radius. The cutting corner includes at least one curved wiper edge. The chamfer angle in a cross-section at the nose cutting edge is smaller than the chamfer angle in a cross-section a distance away from the nose cutting edge. The chamfer angle has a minimum at a bisector of the corner portion.

Abstract: A cutting tool in which a cutting insert is retained by a retaining screw. The cutting insert comprises a rear surface and a lower surface, both of which are generally V-shaped.