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: An end mill includes: at a distal end portion side in a rotation axis direction of a tool body, a plurality of cutting edges continuous from a center side to an outer peripheral side in a radial direction and adjacently arranged in a rotation direction of the tool body; gashes formed on front sides in a rotation direction of the respective cutting edges; and chip discharge flutes continuous with the gashes. The gashes are composed of distal end side depressed faces formed along a distal end side axis making an acute angle with the rotation axis and rear side depressed faces formed along a rear side axis making a smaller acute angle with the rotation axis than the distal end side axis. The distal end side depressed faces and the rear side depressed faces are formed to have shapes overlapping with one another.

Abstract: A coated member of the present invention includes a substrate and a hard coating film that is formed on the surface of the substrate and includes a nitride or carbonitride of a metal element. A content of Al is 65 atom % or more and 85 atom % or less, a content of Cr is 15 atom % or more and 35 atom % or less, and a total content of Al and Cr is 90 atom % or more and 100 atom % or less in a total amount of the metal element and metalloid element contained in the hard coating film, and in an intensity profile obtained from a selected area diffraction pattern of a transmission electron microscope, a crystal plane exhibiting a maximum peak intensity is different between a vicinity of the substrate and a vicinity of the surface, in the vicinity of the substrate, a peak corresponding to a (111) plane or a (200) plane of a face-centered cubic lattice structure exhibits a maximum intensity, and in the vicinity of the surface, a peak intensity corresponding to a (220) plane is 0.

Abstract: An end mill includes a cutting edge portion, a shank, a bottom cutting edge located on a tip surface of the cutting edge portion, and a peripheral cutting edge located on an outer peripheral surface of the cutting edge portion, the bottom cutting edge has a bottom cutting edge outer peripheral portion that extends from an outer peripheral end of the bottom cutting edge to the shank side at an inclination angle of 3° or less, a flank angle of a bottom cutting edge outer peripheral portion primary flank face adjacent to the bottom cutting edge outer peripheral portion is larger than a flank angle of a peripheral cutting edge primary flank face adjacent to the peripheral cutting edge, and a width of the bottom cutting edge outer peripheral portion primary flank face is larger than a width of the peripheral cutting edge primary flank face.

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 which contains aluminum (Al) of 65 atomic % or more and 90 atomic % or less and titanium (Ti) of 10 atomic % or more and 35 atomic % or less with respect to a total amount of metal (including metalloid) elements, and have a face-centered cubic structure. In the X-ray intensity distribution of the ? axis of the positive pole figure with respect to the (111) plane of the face-centered cubic structure, the hard coating film have a maximum intensity Ia in the ? angle range of 80° to 90° and an intensity in the ? angle range of 0° to 70° is 30% or less of the Ia.

Abstract: A coated tool of the present invention includes a substrate and a hard coating on the substrate. The hard coating is a nitride or a carbonitride containing 65 atom % or more and 90 atom % or less of Al and 10 atom % or more and 35 atom % or less of Cr with respect to a total amount of metal elements including metalloid elements, and containing 0.50 atom % or less of argon (Ar), and has a face-centered cubic lattice structure. The hard coating shows a maximum intensity Ia in an ? angle range of 80° to 90° in an X-ray intensity distribution on an ?-axis in a positive pole figure of a (111) plane of the face-centered cubic lattice structure, and an intensity in an ? angle range of 0° to 70° is 35% or less of the maximum intensity Ia.

Abstract: A coated cutting tool which has, on a surface of a substrate, a layer A of a face-centered cubic lattice structure which is a nitride or carbonitride containing 50 atom % or more of Al, 20 atom % or more of Cr, 85 atom % or more of Al and Cr, and 4 atom % or more and 15 atom % or less of Si, and a layer B provided on the layer A. The layer B is a nitride or carbon nitride which contains 70 atom % or more and 90 atom % or less of Ti, 5 atom % or more and 20 atom % or less of Si, and 1 atom % or more and 10 atom % or less of Nb or Cr in terms of a total amount of metal (including metalloid) elements, and has the face-centered cubic lattice structure.

Abstract: A cutting insert includes a rake face, a seating surface facing the rake face, a flank face connecting the rake face and the seating surface, and a cutting edge formed in an ridgeline between the rake face and the flank face. The cutting edge includes a linear main cutting edge, a corner edge, and a wiper edge. A recess portion is provided in an end portion of the main cutting edge. The wiper edge is in an arc shape and connected to the corner edge. Viewed from a rake face side, an extension line of the main cutting edge being L1, a tangent line of the wiper edge perpendicular to L1 being L2, and a tangent line of the wiper edge passing through the point P being L3, an angle ? between L2 and L3 is 0.010°???3.0°.

Abstract: A coated cutting tool includes a substrate and a hard film that is formed thereon. The hard film is a nitride in which with respect to a total amount of metal elements (including metalloid), Al is 60 at % or more and 70 at % or less, Ti is 20 at % or more and 40 at % or less, and one or more selected from W, Cr, Ta, Nb, Zr, Mo, and V are 1 at % or more and 10 at % or less, and with respect to a total amount of metal elements (including metalloid), a nitrogen element, and an Ar element, Ar is contained in an amount of 0.01 at % or more and 0.15 at % or less. A crystal structure of the hard film is a face-centered cubic lattice structure, and a half-value width of an X-ray diffraction peak of a (111) plane is 0.75° or more and 0.95° or less.

Abstract: A coated member of the present invention includes a substrate and a hard coating film that is formed on the surface of the substrate and includes a nitride or carbonitride of a metal element. A content of Al is 65 atom % or more and 85 atom % or less, a content of Cr is 15 atom % or more and 35 atom % or less, and a total content of Al and Cr is 90 atom % or more and 100 atom % or less in a total amount of the metal element and metalloid element contained in the hard coating film, and in an intensity profile obtained from a selected area diffraction pattern of a transmission electron microscope, a crystal plane exhibiting a maximum peak intensity is different between a vicinity of the substrate and a vicinity of the surface, in the vicinity of the substrate, a peak corresponding to a (111) plane or a (200) plane of a face-centered cubic lattice structure exhibits a maximum intensity, and in the vicinity of the surface, a peak intensity corresponding to a (220) plane is 0.

Abstract: A two-flute ball end mill includes a cutting edge that is formed at an intersection ridge line between a groove wall surface of a gash groove and a flank surface; and the flank surface includes a first flank surface that forms a chisel edge and a second flank surface that extends from the first flank surface to a rear side in a rotation direction with a larger clearance angle. In a case where, as seen from a tip side in an axial direction, an intersection point between one cutting edge of two cutting edges and the chisel edge is defined as a first intersection point, and an intersection point between a flank surface boundary line between the first flank surface and the second flank surface of the other cutting edge of the cutting edges and the groove wall surface is defined as a second intersection point.

Abstract: Provided is a coated cutting tool, which includes a hard coating film containing a layer (b) formed of a nitride or a carbonitride, a layer (c) which is a layered coating film formed by alternately layering a nitride or carbonitride layer (c1) that contains 55 atom % or more and 75 atom % or less of Al, Cr having a second highest content percentage, and at least Si and a nitride or carbonitride layer (c2) that contains 55 atom % or more and 75 atom % or less of Al and Ti having a second highest content, and a layer (d) that is a nitride or carbonitride that contains, with respect to a total amount of metal elements (including metalloid elements), 55 atom % or more and 75 atom % or less of Al and Ti having a second highest content percentage, the content percentage of Ti being 20 atom % or more.

Abstract: A coated cutting tool has a hard coating on a surface of a base material. The hard coating is a nitride of Al, Cr, and Si in which Al is 50 atom % or more, Cr is 30 atom % or more, and Si is 1 atom % or more and 5 atom % or less. The hard coating contains 0.02 atom % or less of Ar, and the atomic ratio A and the atomic ratio B of nitrogen satisfy the relationship of 1.02?B/A?1.10, and a diffraction peak originating from the (111) plane of a face-centered cubic lattice structure shows the maximum intensity. In the cross-sectional observation of the hard coating, the number of droplets having an equivalent circle diameter of 3 ?m or more is less than 1 per 100 ?m2. The surface of the hard coating has an arithmetical mean curvature Spc value of 5000 or less.

Abstract: Provided is a coated cutting tool in which a surface of a substrate is coated with a hard coating film. The hard coating film includes: a layer (A) disposed on the surface of the substrate, and having a face-centered cubic lattice structure, in which the total content ratio of W and Ti is at least 85 atomic %, and which contains W as the most abundant element and Ti as the next most abundant element among metal (including metalloid) elements; and a layer (B) disposed on the layer (A) and having a face-centered cubic lattice structure, which is composed of nitrides or carbonitrides containing Al, Cr, and Si, and in which, among metal (including metalloid) elements, the Al content ratio is at least 50 atomic %, the total content ratio of Al and Cr is at least 85 atomic %, and the Si content ratio is 4 to 15 atomic %.

Abstract: A coated tool of the present invention includes a substrate and a hard coating on the substrate. The hard coating is a nitride or a carbonitride containing 65 atom % or more and 90 atom % or less of Al and 10 atom % or more and 35 atom % or less of Cr with respect to a total amount of metal elements including metalloid elements, and containing 0.50 atom % or less of argon (Ar), and has a face-centered cubic lattice structure. The hard coating shows a maximum intensity Ia in an ? angle range of 80° to 90° in an X-ray intensity distribution on an ?-axis in a positive pole figure of a (111) plane of the face-centered cubic lattice structure, and an intensity in an ? angle range of 0° to 70° is 35% or less of the maximum intensity Ia.

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 which contains aluminum (Al) of 65 atomic % or more and 90 atomic % or less and titanium (Ti) of 10 atomic % or more and 35 atomic % or less with respect to a total amount of metal (including metalloid) elements, and have a face-centered cubic structure. In the X-ray intensity distribution of the ? axis of the positive pole figure with respect to the (111) plane of the face-centered cubic structure, the hard coating film have a maximum intensity Ia in the ? angle range of 80° to 90° and an intensity in the ? angle range of 0° to 70° is 30% or less of the Ia.

Abstract: The present invention discloses a non-reactive PVD coating process for producing an aluminium-rich AlxTi1?xN-based thin film having an aluminium content of >75 at-% based on the total amount of aluminium and titanium in the thin film, a cubic crystal structure, and a columnar microstructure, wherein ceramic targets are used as a material source for the aluminium-rich AlxTi1?xN-based thin film.

Abstract: Provided is a coated cutting tool, which includes a hard coating film containing a layer (b) formed of a nitride or a carbonitride, a layer (c) which is a layered coating film formed by alternately layering a nitride or carbonitride layer (c1) that contains 55 atom % or more of Al, Cr having a second highest content percentage, and at least B and a nitride or carbonitride layer (c2) that contains 55 atom % or more of Al and Ti having a second highest content percentage, each layer having a film thickness of 50 nm or less. A peak intensity Ih ascribable to a hcp (010) plane of AlN in the layer (c) and the total peak intensity Is ascribable to a plurality of predetermined crystal phases satisfy a relationship of Ih×100/Is?15.

Abstract: What is presented is a cutting insert including a polygonal plate-shaped insert main body that includes: two polygonal surfaces; a side surface; and a cutting edge, the insert main body has a mounting hole that is centered on an insert center line passing through centers of the two polygonal surfaces, the cutting edge includes a major cutting edge extending from a first end of a corner edge located at a corner of the polygonal surface, and, in the opening of the mounting hole, a plurality of protrusions protruding with respect to a boss surface around an opening of the mounting hole are formed at intervals in a peripheral direction in an inner periphery side region of the major cutting edge.

Abstract: In this cutting insert, two cutting edges respectively including arc-shaped cutting edge parts extending in an arc shape in a plan view and linear cutting edge parts are provided in an intersection ridge line part between a rake face and a flank face. The cutting edges include a convex curved part moving away from a seating face and then moving close to the seating face as at least the arc-shaped cutting edge part moves away from the linear cutting edge parts. In a side view, the arc-shaped cutting edge parts include curvature change points between most protruding points farthest from the seating face and cutting edge tips of the arc-shaped cutting edge parts.