Abstract: The present invention relates to a wear resistant coating suitable to be deposited on cutting tool inserts for chip forming metal machining. The coating comprises at least two layers with different grain size, but with essentially the same composition. The coating is deposited by Physical Vapor Deposition (PVD).

Abstract: A wear resistant coating suitable to be deposited on cutting tool inserts for chip forming metal machining, includes at least two layers with different grain size, but with essentially the same composition. The coating is deposited by Physical Vapor Deposition (PVD).

Abstract: The present invention relates to a wear resistant coating suitable to be deposited on cutting tool inserts for chip forming metal machining. The coating comprises at least two layers with different grain size, but with essentially the same composition. The coating is deposited by Physical Vapour Deposition (PVD).

Abstract: A cutting tool includes a body of a hard alloy of cemented carbide, cermet, ceramics, cubic boron nitride based material or high speed steel and on which at least one of the functioning parts of the surface thereof, a hard and wear resistant coating is applied. The coating includes a polycrystalline laminar, multilayered structure of metal nitride compounds, in a repetitive form . . . MeN/(Ti1-xAlx)N/MeN/(Ti1-xAlx)N/MeN/(Ti1-xAlx)N/MeN/(Ti1-xAlx)N . . . of cubic structured (Ti1-xAlx)N layers where 0.3<x<0.95 and cubic structured MeN layers where Me is one or more of the metal element Ti, Zr, Hf, V, Nb, Ta, Mo and Al. The laminated structure has a repeat period, ?, of 5 nm??<20 nm, a layer thickness relation of 1/10<(dMeN/d(Ti,Al)N)<1/3 and a thickness dMeN?1 nm that is essentially constant throughout its total thickness up to 20 ?m.

Abstract: A wear resistant coating suitable to be deposited on cutting tool inserts for chip forming metal machining, includes at least two layers with different grain size, but with essentially the same composition. The coating is deposited by Physical Vapour Deposition (PVD).

Abstract: The present invention relates to a cutting tool insert, solid end mill, or drill, comprising a substrate and a coating. The coating is composed of at least one layer comprising a cubic c-(Me,Si,)N-phase without a co-existing amorphous phase.

Abstract: The present invention relates to a cutting tool insert having a substrate and a coating, the coating is composed of one or more layers of refractory compounds of which at least one layer includes a composite structured (TiyAlxMe1?x?y)N layer, where Me is one of the element Zr, Hf, V, Nb, Ta, Cr, Mo, W or Si, defined by: x is between 0.60 and 0.80 the ratio, R=x/(x+y), is between 0.60 and 0.85 the sum of Ti and Al subscript, S=x+y, is between 0.7 and 1.0 the co-existence of crystalline hexagonal h-AlN and cubic c-(TiyAlxMe1?x?y)N as detected by X-ray diffraction (XRD), defined by the ratio between the area of the h-AlN (100) peak at approximately 33° 2? (=A(h-AlN)100) and the c-(TiyAlxMe1?x?y)N (200) peak at approximately 43° 2? (=A(c-(Ti,Al,Me)N)200) called K, i.e. K=A(h-AlN)100/A(c-(Ti,Al,Me)N)200. K is >0.08, and The FWHM (Full Width Half Maximum) value of the: c-(TibAlaMe1?a?b)N (200) peak is <1.4 °2? h-AlN (100) peak is between 0.2 and 1.5° 2?.

Abstract: The present invention relates to a cutting tool insert comprising a substrate and a coating. The coating composed of one or more layers of refractory compounds of which at least one layer comprises a so called MAX-phase defined as Mn+1AXn where n is 1, 2 or 3, M is one of the elements Ti, Zr, Hf, V, Nb, Ta, Cr or Mo, A is Al, Si or S, X is C, N and/or B.

Abstract: The present invention relates to a cutting tool insert having a substrate and a coating, the coating is composed of one or more layers of refractory compounds of which at least one layer includes a precipitation hardened (TiyAlxMe1-x-y)N based layer, where Me is one of the elements: Zr, Hf, V, Nb, Ta, Cr, Mo, W or Si, and: x is between 0.50 and 0.80; the ratio, R=x/(x+y), is between 0.50 and 0.85; the sum of Ti and Al subscripts, S=x+y, is between 0.7 and 1.0; the ratio of the peak width, F10/90, (FW10% M or FW90% M meaning Full Width at 10% and 90% of the maximum peak value reduced with the background) measured on the 200 peak at approximately 43°2? (using Cu K? radiation) of the (TiyAlxMe1-x-y)N coating, according to FIG. 4, is higher than 7.5; the ratio between the area of the h-AlN (100) peak at approximately 33°2? (=A(h-AlN)100) and the c-(TiyAlxMe1-x-y)N (200) peak at approximately 43°2? (=A(c-(Ti,Al,Me)N)200) called K, i.e. K=A(h-AlN)100/A(c-(Ti,Al,Me)N)200 K is between 0 and 0.

Abstract: A coated cemented carbide insert (cutting tool), particularly useful for milling at high cutting speeds in alloyed steels, tool steels and milling in hardened steels includes a WC—Co cemented carbide containing NbC and TaC and a W-alloyed binder phase, and a coating including an inner layer of TixAlyN, 0.8<x+y<1.2, with 0.25<x/y<1.45, with columnar grains.