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: Cutting tool inserts comprising a substrate selected from the group consisting of cemented carbide, cermet, ceramics, cubic boron nitride based material, and high speed steel; and a hard and wear-resistant coating comprising laminar polycrystalline metal nitrides layers are disclosed. Methods of making a cutting tool insert are also disclosed. In addition, methods for machining of stainless steel and super alloys using the cutting tool inserts are disclosed.

Abstract: Coated cemented carbide inserts, particularly useful in fine turning of super alloys, are disclosed. The inserts are characterized by a composition of a cemented carbide of WC, about 4.0 wt-% Co to about 7.0 wt-% Co, about 0.25 wt-% Cr to 0.50 wt-% Cr, and a coercivity (Hc) of about 28 kA/m to about 38 kA/m. The coating comprises a single (Ti1-xSix)N-layer, where x is between about 0.1 and about 0.25, with a crystal structure of NaCl type and a total thickness between about 0.5 ?m and about 2.0 ?m with a strong (200)-texture.

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 one or more layers of refractory compounds of which at least one layer comprises a h-Me1Me2X phase, where Me1 is one or several of the elements V, Cr, Nb, and Ta and Me2 is one or several of the elements Ti, Zr, Hf, Al, and Si and X is one or several of the elements N, C, O or B. The ratio R=(at-% X)/(at-% Me1+at-% Me2) of the h-MelMe2X phase is between 0.5 and 1.0, preferably between 0.8 and 1.0 and X contains less than 30 at-% of O+B. This invention is particularly useful in metal cutting applications where the chip thickness is small and the work material is hard e.g. copy milling using solid end mills, insert milling cutters or drilling of hardened steels.

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 one or more layers of refractory compounds of which at least one layer comprises a cubic (Me,Si)X phase, where Me is one or more of the elements Ti, V, Cr, Zr, Nb, Mo, Hf, Ta and Al, and X is one or more of the elements N, C, O or B. The ratio R=(at-% X)/(at-% Me) of the c-MeSiX phase is between 0.5 and 1.0 and X contains less than 30 at-% of O+B. This invention is particularly useful in metal machining applications where the chip thickness is small and the work material is hard e.g. copy milling using solid end mills, insert milling cutters or drilling of hardened steels.

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.

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:

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:

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: A cutting tool having a substrate and a coating has at least one layer having an X-ray diffraction pattern. The pattern shows the presence of a crystalline structure as well as of an amorphous structure. Preferably the layer comprises (Ti,Al)(O,N). The tool is particularly useful for machining steel, hardened steel or stainless steel, preferably milling of stainless steel. Associated methods are also described.

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.