Abstract: A coated cutting tool is provided. The cutting tool is CVD coated and has a substrate of cemented carbide, wherein a metallic binder in the cemented carbide includes Ni. The CVD coating has an inner layer of TiN and a subsequent layer of TiCN and a layer of Al2O3 located between the TiCN layer and an outermost surface of the coated cutting tool.

Abstract: A clamping device for releasably holding a tool holder shank includes a spindle rotatably mounted inside a housing, a drawbar axially moveable in a bore in the housing, engagement members moveable under the effect of the drawbar into locking engagement with the tool holder shank, an actuating member slidably mounted to the spindle, a motion transferring mechanism for transferring an axial movement of the actuating member into a movement of the drawbar, and a hydraulic actuator with a piston unit for moving the actuating member. A valve assembly with two parallel and oppositely directed check valves provides a residual hydraulic pressure in a hydraulic chamber of the hydraulic actuator that will affect an automatic return movement of the piston unit after a movement of the drawbar to a retracted locking position.

Abstract: A clamping device is arranged for releasably holding a tool holder shank. The clamping device includes a housing, a drawbar axially moveable in a bore in the housing in a first axial direction between an advanced releasing position and a retracted locking position, engagement members moveable under the effect of the drawbar into locking engagement with the tool holder shank, a sleeve-shaped actuating member surrounding a part of the drawbar and axially moveable in relation to it, a piston received in the bore and fixed to the actuating member, and a wedge arranged on the outside of the drawbar and configured to move the drawbar rearwards in the bore when pressed inwards towards a longitudinal center axis of the drawbar by movement of the piston and the actuating member in the first axial direction.

Abstract: A cutting tool includes a substrate of cemented carbide including hard constituents in a metallic binder. The hard constituents includes WC and the WC content in the cemented carbide is 80-96 wt %. The cemented carbide has a Ni content of 2.5-13 wt %, a weight ratio of Fe/Ni<1.5 and a weight ratio of Co/Ni<0.825. The cutting tool includes a rake face, a flank face and a cutting edge there between, wherein the hardness H is measured with Vickers indentation and the crack resistance W is the ratio of the load to the total crack lengths of the cracks in the corners of said Vickers indentation. The product of the hardness at the rake face H(rake) and the crack resistance at the rake face W(rake) for the cutting tool is H(rake)*W(rake)>2000 HV100*N/?m.

Abstract: A coated cutting tool including a substrate and a coating is provided. The coating includes a nano-multilayer of alternating layers of a first nanolayer being Ti1-xAlxN, 0.35?x?0.70, and a second nanolayer being Ti1-yAlyN, 0.12?y?0.25. A sequence of one first nanolayer and one second nanolayer forms a layer period. The average layer period thickness in the nano-multilayer is ?7 nm. The nanomultilayer has a columnar structure with an average column width of ?70 nm.

Abstract: A method for producing a coated cutting tool for metal machining having a substrate and coating is provided. The coating includes at least one layer of (Ti,Al)N having a cubic crystal phase. The method includes the deposition of a layer of Ti1-xAlxN, 0.70?x?0.98, the Ti1-xAlxN having cubic crystal phase. The layer of Ti1-xAlxN is deposited by cathodic arc evaporation at a vacuum chamber pressure of from 7 to 15 Pa of N2 gas, using a DC bias voltage of from ?200 to ?400 V and using an arc discharge current of from 75 to 250 A. A coated cutting tool for metal machining having a coating including a (Ti,Al)N multi-layer of alternating sub-layers of at least Ti1-yAlyN and Ti1-zAlzN, 0.35?y?0.65 and 0.80?z?0.98, with only cubic phase present is also provided.

Abstract: A method of making a tool having a joining a maraging steel joining partner and a cemented carbide joining partner by brazing and a tool made according to the method is provided. The method includes depositing a Ni coating onto the maraging steel joining partner prior to applying the filler material having at least 70 wt % Cu. The braze joint shows excellent shear strength.

Abstract: A cutting tool includes a substrate at least partially coated with a coating. The substrate is a cemented carbide, cermet or ceramic. The coating includes a layer of Ti(C,N), a layer of Al2O3 and there between a bonding layer. The Ti(C,N) layer is composed of columnar grains, wherein an average grain size D422 of the Ti(C,N) layer is 25-50 nm, and wherein the Ti(C,N) layer includes a portion B1 that is adjacent to the bonding layer. An average grain size of the Ti(C,N) grains in portion B1 is larger than the average grain size D422 in the whole Ti(C,N) layer. In the portion B1 of Ti(C,N) layer the Ti(C,N) grains has an average grain size of 140-300 nm.

Abstract: A cutting tool includes a supporting body and a cBN or PCD cutting edge tip attached to the supporting body via a 5-150 ?m braze joint. The supporting body is cemented carbide having 3-25 wt % of a metallic binder, optionally up to 25 wt % of carbides or carbonitrides of one or more elements of group 4, 5, or 6, and the rest WC. The metallic binder includes at least 40 wt % Ni, and the braze joint has, in the order from the supporting body, a first layer of TiC situated next thereto, with an average thickness of 10-400 nm, a second layer, with an average thickness of 0.5-8 ?m, having in average at least 5 wt % metallic Ni, in average 25-60 wt % metallic Cu and in average 15-45 wt % metallic Ti, and a third layer, with an average thickness of 4-145 ?m, having metallic Ag and metallic Cu.

Abstract: A coated cutting tool includes a substrate at least partially coated with a coating. The substrate is made of cemented carbide composed of hard constituents in a metallic. The metallic binder includes more than 60 wt % Ni. The coating has two or more layers, wherein the layer adjacent to the substrate is a W(CxN1-x)y layer, wherein 0.6?x?0.8 and 1.1?y?1.8 with a W(CxN1-x)y layer thickness of 0.4-7 ?m.

Abstract: A cutting tool includes a substrate at least partially coated with a 1-25 ?m coating. The substrate is of cemented carbide or cermet and the coating includes one or more layers, wherein at least one layer is a W(CxN1-x)y layer, and wherein 0.6?x?0.8 and 1.1?y?1.8 and with a layer thickness of 1-20 ?m.

Abstract: A coated cutting tool includes a substrate and a coating, wherein the coating has a (Ti,Al)N multilayer of alternating cubic Ti1-xAlxN sub-layers, 0.60?x?0.75, and cubic+hexagonal Ti1-yAlyN sub-layers, 0.60?y?0.75. The average cubic Ti1-xAlxN sub-layer thickness is from 75 to 450 nm and the average cubic+hexagonal Ti1-yAlyN sub-layer thickness is from 50 to 300 nm. The number of each of the cubic Ti1-xAlxN sub-layers and cubic+hexagonal Ti1-yAlyN sub-layers is from 2 to 50.

Abstract: A metal cutting drill insert for a drill tool has opposing top and bottom surfaces with a symmetry axis extending therebetween. At least one stepped cutting edge is configured to cut a continuous chip along the at least one stepped cutting edge. The at least one stepped cutting edge is formed at an intersection of a rake face and an adjoining clearance face of the side surface. In a top view facing the top surface the at least one stepped cutting edge includes a step formed by a transitional edge between a first part and a second part edge. The step extends in a radial direction relative the symmetry axis by a first distance h1, and in a side view facing the side surface the step extends in a direction from the bottom surface towards the top surface by a second distance h2, wherein 0.8·h1?h2?1.2·h1.

Abstract: A milling tool having a front end, a rear end, a longitudinal axis extending therebetween, a shank portion and a cutting portion. The cutting portion includes a plurality of teeth separated by a corresponding number of flutes. Each tooth extends axially along the cutting portion following a curved helical path around the longitudinal axis, and extends at a first helix angle from the front end to a helix transition, and at a second helix angle from the helix transition towards the shank portion. The second helix angle is greater than the first helix angle by at least 2° and at most 15°. The first helix angle (?) is 33°???50°, and the second helix angle (?) is 40°???55°, and wherein the helix transition is axially located from the front end by 0.2 to 0.7 of the longitudinal length of the cutting portion.

Abstract: A milling tool includes an elongate cutting head having a front end, a rear end, and a longitudinal axis extending therebetween. The cutting head includes a plurality of flutes separated from each other by a corresponding number of intermediate portions, wherein the flutes extend axially along the cutting head. The cutting head has a coolant distributing through-hole extending between two adjacent flutes through the intermediate portion located therebetween, for influencing the distribution of coolant provided to the milling tool.

Abstract: A cutting tool includes a substrate of cemented carbide having hard constituents in a metallic binder. The hard constituents include WC. The WC content in the cemented carbide is 80-95 wt %. The cemented carbide has a Fe+Ni+Co+Cr content of 3-13 wt %, an atomic ratio of 0.05<Fe/(Fe+Ni+Co+Cr)<0.35, an atomic ratio of 0.05<Ni/(Fe+Ni+Co+Cr)<0.35, an atomic ratio of 0.05<Co/(Fe+Ni+Co+Cr)<0.35 and an atomic ratio of 0.05<Cr/(Fe+Ni+Co+Cr)<0.35. The crack resistance W measured on the rake face of the cutting tool is at least 25% higher than the W measured on a cross section of the bulk area of the cutting tool.

Abstract: A tool holder and a parting and grooving tool for an indexable turret have a plurality of tool stations, The adjacent tool stations have a predetermined angular spacing. The tool holder includes a mounting portion and a projected portion, which are connected. The mounting portion has a flat surface extending in an interface plane and the projected portion has a recess for holding the parting and grooving tool. The parting and grooving tool includes a cutting portion and a clamping portion. The cutting portion includes a cutting edge and the clamping portion includes a rear end surface. The parting and grooving tool is mountable in the recess such that a distance from the interface plane to the rear end surface of the parting and grooving tool is greater than a distance from the interface plane to the cutting portion of the parting and grooving tool.

Abstract: A method of treating a coated cutting tool using laser shockpeening (LSP) is provided. The coated cutting tool includes a substrate and a coating, wherein the substrate is of cemented carbide or cermet. The coating includes a CVD layer and/or a PVD layer. The method includes the step of applying LSP to at least a portion of the cutting tool, wherein the LSP energy density is within 0.4 to 1.6 J/mm2 and wherein the LSP applies laser pulses to the at least one portion of the cutting tool.