Abstract: A green body for a cross-hole, compacted cutting insert, as well as a cutting insert, equipment for making a green body, and method for making a green body, wherein the green body includes a first side, a second side, and a side surface extending between the first side and the second side entirely around the first side and the second side. The green body includes a quadrilateral-shaped cross-hole extending through the green body from a first location on the side surface to a second location on the side surface on an opposite side of the green body from the first location. The quadrilateral-shape of the cross-hole can assist in achieving a more uniform density of compactable material in the green body.

Abstract: A coated cutting tool includes a body and a hard and wear resistant PVD coating on the body, wherein the body is made from a cemented carbide, cermet, ceramics, polycrystalline diamond or polycrystalline cubic boron nitride based materials. The coating includes a first (Ti,Al)-based nitride sub-coating and a second (Ti,Al)-based nitride sub-coating. The first (Ti,Al)-based nitride sub-coating can be a single layer, and the second (Ti,Al)-based nitride sub-coating can be a laminated structure, wherein the first (Ti,Al)-based nitride sub-coating includes a (Ti1-xAlx)Nz-layer where 0.1<x<0.4, 0.6<z<1.2, and wherein the second (Ti,Al)-based nitride sub-coating includes a (Ti1-x1-y1Alx1Cry1)Nz1 layer where 0.5<x1<0.75, 0.05<y1<0.2, 0.6<z1<1.2.

Abstract: Indexable, double-sided turning inserts for turning operations and and a turning tool are provided with cutting edges at alternating corners on opposite sides of the insert. Chipbreaker structures can be provided without interfering with providing large supporting surfaces. When the insert is used in a cutting operation, chips from one of the cutting edges in use are unlikely to damage cutting edges that are not in use but are on adjacent corners.

Abstract: A tool for machining a stacked material workpiece includes a tool body having one or more helical flutes extending to a forward end of the tool body. Each helical flute has a width defined by a first cutting edge and a second edge, a surface of the flute adjacent the first cutting edge facing the forward end of the tool body and a surface of the flute adjacent the second edge facing away from the forward end of the tool body. Each helical flute can include a first portion having a first negative pitch angle and a second portion having a second negative pitch angle different from the first negative pitch angle, the first portion extending from the forward end of the tool body to the second portion. The tool has only negative pitch angles. A method for machining a stacked material is also disclosed.

Abstract: A method for manufacturing a cemented carbide body includes the steps of forming a first part of a first powder composition comprising a first carbide and a first binder phase, sintering the first part to full density in a first sintering operation, forming a second part of a second powder composition comprising a second carbide and a second binder phase, sintering the second part to full density in a second sintering operation, bringing a first surface of the first part and a second surface of the second part in contact, and joining the first and second surface in a heat treatment operation.

Abstract: A deburring tool includes a shank attached at a first end to a chuck and a working portion at a second end of the shank. The working portion includes a first end portion closest to and joining the second end of the shank at a first end of the first end portion, a second end portion furthest from the shank, and an intermediate portion disposed between the first end portion and the second end portion, a first end of the intermediate portion joining a second end of the first end portion and a second end of the intermediate portion joining a first end of the second end portion. The intermediate portion tapers continuously from a largest diameter at the first end of the intermediate portion to a smallest diameter at the second end of the intermediate portion, and deburring cutter members provided on the second end portion adjacent the second end of the intermediate portion.

Abstract: A tool having a toolholder and a cutting insert disposed in the pocket of the toolholder. The cutting insert includes a hole having a cutting insert clamping surface that is contacted by the clamp clamping surface. The clamp clamping surface and the cutting insert clamping surface are formed, such that as a clamp bottom surface is moved toward a bottom surface of the pocket, when a post is in a post hole and a fastener is in a clamp hole and a toolholder hole, the cutting insert is urged against the bottom surface and a rear wall. A tool holder is also disclosed.

Abstract: A cutting tool includes a tool holder body having a shank portion and a head portion, and an indexable cutting insert arranged in a cutting insert seat. The cutting insert includes a cutting edge and a clearance surface. The insert seat has a first convex wall and a second convex wall and at least one bottom surface at which the cutting insert is arranged to abut. The convex walls are situated on separate pins, which are perpendicular or substantially perpendicular to each other when seen in a side view. The second convex wall is situated below the cutting edge.

Abstract: A double-sided cutting insert includes two end surfaces that each includes major rake surfaces adjacent major cutting edges that form first angles with planes of major side surfaces of the insert, and a central support surface forming a second angle with the planes of the major side surfaces. Each end surface further includes major intermediate surfaces between the major rake surfaces and the central support surface. The major intermediate surfaces form third angles with the planes of the major side surfaces that are greater than the first angles and smaller than the second armies when measured in a central plane that extends along a central axis of the hole and is generally perpendicular to the planes of the major side surfaces and planes of the central support surfaces.

Abstract: A coupling and a blade for a cooling system in a cutting tool includes a first member including a shank having a first end and a second end. The first end of the shank defines a first end of the first member, and a head of the first member disposed at the second end of the shank and a top of the head of the first member defines a second end of the first member. The head of the first member is frustoconical and the first member includes a longitudinal passage in the shank. A radial opening in the head of the first member is in fluid communication with the longitudinal passage.

Abstract: A coated cutting tool and a hard and wear resistant coating for a body include at least one metal based nitride layer. The layer is (ZrxCrl-x-y-zAlyMez)Na with 0.55<x<0.85, 0.05<y<0.45, 0?z<0.20, 0.95<a<1.10, and Me is one or more of the elements: Y, Ti, V, Nb, Ta, Mo, W, Mn or Si. The layer can have a thickness between 0.5 ?m and 15 ?m and be comprisied of a single cubic phase or a single hexagonal phase or a mixture thereof. In an exemplary embodiment, the layer is a cubic phase of a sodium chloride structure. The layer can be deposited using cathodic arc evaporation and is useful for metal cutting applications generating high temperatures.

Abstract: A double-sided milling insert for high feed milling of metal workpieces includes upper and lower faces facing in opposite directions and convex clearance surfaces extending between the upper and lower faces. Each one of the faces includes a recessed support surface. The support surfaces are substantially parallel to each other and have a cavity therein for receiving a fastening device. Intersections of the convex clearance surfaces with the upper and lower faces form convex cutting edges when seen in a plan view. A rake face is provided adjacent the convex cutting edges. Each convex cutting edge is concave when seen in a side view and includes a substantially straight cutting edge portion on each side of a curved cutting edge portion when seen in plan view. A milling tool with a plurality of such inserts and a method of high feed milling using this tool are also disclosed.

Abstract: A cutting head for a cutting tool includes a cutting portion and a shank portion. The cutting portion has a plurality of integrally formed cutting edges and the shank portion has a first end adjacent the cutting portion and a second end. The first portion of the shank portion is closer to the first end of the shank portion than the second and third portions of the shank portion and the third portion of the shank portion is disposed closer to the second end of the shank portion than the first and second portions. The first portion of the shank portion has an exterior surface including at least one axially extending recess extending from an end of the first portion closest to the second portion toward the first end of the shank portion. The cutting head is formed of a pressed and sintered cemented carbide material.

Abstract: A press for making a cutting tool green body having at least one helical flute includes a die having an opening with a helical protrusion and a punch having at least one helical groove having a shape that matches a shape of the helical protrusion. An electrical punch drive system is arranged to simultaneously rotate the punch, relative to a longitudinal axis of the opening in the die, and axially advance the punch into and along a direction of the longitudinal axis of the opening in the die. A method for making a cutting tool green body having at least one helical flute is also disclosed.

Abstract: A device for manufacturing a cutting insert green body by compacting a powder includes a die having an upper die part and a lower die, an upper punch and a lower punch, at least one of which is moveable along a pressing axis in relation to the die. The upper and lower die parts, when joined, define a die cavity that defines the shape of the green body to be formed by the compaction. At least one of the lower and upper die part has a pressing bore extending from the cavity for receiving the lower and upper punch. The upper die part has an upper surface that, at least in one direction, extends rectilinearly, and the upper die part has an upper opening in the upper surface, through which the upper punch is arranged to be forwarded into the cavity.

Abstract: A long twist drill includes a shank and a drill body having a drill tip (16). The twist drill has a length L and an outer diameter D, and has a cemented carbide or high speed steel substrate and a coating of at least one layer. The quota L/D is at least 16. The twist drill has two cutting segments at the tip and two flutes chip. The twist drill is provided with holes for fluid opening in the tip. The twist drill has an axial web thinning angle GAA, which is 40 to 50°. The twist drill further has a web that back tapers such that a web diameter gets smaller in a direction away from the tip towards the shank within an axial distance.

Abstract: A tool for machining a stacked material workpiece includes a tool body having one or more helical flutes extending to a forward end of the tool body. Each helical flute has a width defined by a first cutting edge and a second edge, a surface of the flute adjacent the first cutting edge facing the forward end of the tool body and a surface of the flute adjacent the second edge facing away from the forward end of the tool body. Each helical flute can include a first portion having a first negative pitch angle and a second portion having a second negative pitch angle different from the first negative pitch angle, the first portion extending from the forward end of the tool body to the second portion. The tool has only negative pitch angles. A method for machining a stacked material is also disclosed.

Abstract: A device for manufacturing a cutting insert green body by compacting a powder includes a die having an upper die part and a lower die, an upper punch and a lower punch, at least one of which is moveable along a pressing axis in relation to the die. The upper and lower die parts, when joined, define a die cavity that defines the shape of the green body to be formed by the compaction. At least one of the lower and upper die part has a pressing bore extending from the cavity for receiving the lower and upper punch. The upper die part has an upper surface that, at least in one direction, extends rectilinearly, and the upper die part has an upper opening in the upper surface, through which the upper punch is arranged to be forwarded into the cavity.

Abstract: A hard and wear resistant coating for a body includes at least one metal based nitride layer having improved high temperature performance. The layer is (Zr1-x-zSixMez)Ny with 0<x<0.30, 0.90<y<1.20, 0?z<0.25, and Me is one or more of the elements Y, Ti, Nb, Ta, Cr, Mo, W and Al, comprised of a single cubic phase, a single hexagonal phase or a mixture thereof, with a cubic phase of a sodium chloride structure and a thickness between 0.5 ?m and 15 ?m. The layer is deposited using cathodic arc evaporation and is useful for metal cutting applications generating high temperatures.