Abstract: A coated tool of the present invention includes a base material and a hard coating film on the base material. The hard coating film is a nitride or carbonitride containing aluminum (Al) of 65 atomic % or more 90 atomic % or less, titanium (Ti) of 10 atomic % or more 35 atomic % or less, a total of aluminum (Al) and titanium (Ti) of 85 atomic % or more, and argon (Ar) of 0.20 atomic % or less. The hard coating film satisfies a relationship of Ih×100/Is?12 when a peak intensity of a (010) plane of AlN of a hexagonal close-packed structure is Ih and a sum of peak intensities due to predetermined nine crystal planes of TiN and AlN is Is in an intensity profile obtained from a selected area diffraction pattern of a transmission electron microscope.

Abstract: The present invention discloses a coated cutting tool having a hard coating film on a surface of the tool. The hard coating film is a nitride, the content ratio of titanium (Ti) with respect to a total amount of metal elements (including semimetal elements) is in a range of 70 at % to 95 at %, the content ratio of silicon (Si) with respect to the total amount of metal elements (including semimetal elements) is in a range of 5 at % to 30 at %, and the content ratio of argon (Ar) with respect to the total amount of metal elements (including semimetal elements) and non-metal elements is 0.1 at % or less. The hard coating film has a NaCl type crystal structure and has an average crystal grain size in a range of 5 nm to 30 nm.

Abstract: A multilayer hard film-coated cutting tool including a cutting tool body and a multilayer hard film formed on a surface of the cutting tool body, wherein the multilayer hard film comprises at least an upper layer and a lower layer; the upper layer is made of a Ti and Si compound layer; the lower layer is made of a multi-layered film of an A-layer and a B-layer, a layer thickness of the B-layer is equal to or thicker than a layer thickness of the A-layer, a ratio of the layer thicknesses of the A-layer and the B-layer being A-layer:B-layer=1:1 to 1:2, the multilayer hard films having 2 to 8 pairs of the A-layer and the B-layer in a case where a single pair is defined by a combination of a single A-layer and a single B-layer.

Abstract: The present invention discloses a coated cutting tool having a hard coating film on a surface of the tool. The hard coating film is a nitride, the content ratio of titanium (Ti) with respect to a total amount of metal elements (including semimetal elements) is in a range of 70 at % to 95 at %, the content ratio of silicon (Si) with respect to the total amount of metal elements (including semimetal elements) is in a range of 5 at % to 30 at %, and the content ratio of argon (Ar) with respect to the total amount of metal elements (including semimetal elements) and non-metal elements is 0.1 at % or less. The hard coating film has a NaCl type crystal structure and has an average crystal grain size in a range of 5 nm to 30 nm.

Abstract: A multilayer hard film-coated cutting tool including a cutting tool body and a multilayer hard film formed on a surface of the cutting tool body, wherein the multilayer hard film comprises at least an upper layer and a lower layer; the upper layer is made of a Ti and Si compound layer; the lower layer is made of a multi-layered film of an A-layer and a B-layer, a layer thickness of the B-layer is equal to or thicker than a layer thickness of the A-layer, a ratio of the layer thicknesses of the A-layer and the B-layer being A-layer:B-layer=1:1 to 1:2, the multilayer hard films having 2 to 8 pairs of the A-layer and the B-layer in a case where a single pair is defined by a combination of a single A-layer and a single B-layer.

Abstract: A workpiece has a body (3) and a wear-resistant hard coating system (HLo), which system comprises a layer of the following composition: (Al1-a-b-cCraBbZc)X where X is at least one of: N, C, CN, NO, CO, CNO; Z is at least one of: W, Mo, Ta, Cb (Nb). For a, b and c specific ranges of values are valid.

Abstract: A workpiece has a body (3) and a wear-resistant hard coating system (HLo), which system comprises a layer of the following composition: (Al1-a-b-cCraBbZc)X where X is at least one of: N, C, CN, NO, CO, CNO; Z is at least one of: W, Mo, Ta, Cb (Nb). For a, b and c specific ranges of values are valid.

Abstract: A workpiece has a body (3) and a wear-resistant hard coating system (HLo), which system comprises a layer of the following composition: (Al1-a-b-cCraBbZc)X where X is at least one of: N, C, CN, NO, CO, CNO; Z is at least one of: W, Mo, Ta, Cb (Nb). For a, b and c specific ranges of values are valid.

Abstract: A workpiece has a body (3) and a wear-resistant hard coating system(HLo), which system comprises a layer of the following composition: (Al1-a-b-cCraBbZc)X where X is at least one of: N, C, CN, NO, CO, CNO; Z is at least one of: W, Mo, Ta, Cb (Nb). For a, b and c specific ranges of values are valid.

Abstract: A hard material layer is deposited on a workpiece as a functional layer by an arc-PVD method. The layer is essentially an electrically insulating oxide of at least one of the metals (Me) of the transition metals of the sub-groups IV, V, VI of the periodic table and Al, Si, Fe, Co, Ni, Co, or Y and the functional layer (32) contains no noble gas or halogen.

Abstract: A coating is stripped off a work piece by applying a chromous and aluminiforous coat directly on the work piece and stripping the work piece with an alkaline solution containing a strong oxidant. A single-compartment system can be used, which includes a spray chamber including a circulatory spray-cycle system; a support for holding the work piece; and a media container connected to the spray chamber via a media circulation system.

Abstract: A coating is stripped off a work piece by applying a chromous and aluminiforous coat directly on the work piece and stripping the work piece with an alkaline solution containing a strong oxidant. A single-compartment system can be used, which includes a spray chamber including a circulatory spray-cycle system; a support for holding the work piece; and a media container connected to the spray chamber via a media circulation system.