Abstract: A coated tool includes a base body and a diamond coating. The coated tool has a cutting edge. The first surface comprises a first region close to the cutting edge and a second region further away from the cutting edge than the first region. The diamond coating comprises an outer surface having dome-shaped protrusions. The protrusions include first protrusions having an equivalent circle diameter of 6 µm or more located in the first region, and second protrusions having an equivalent circle diameter of 6 µm or more located in the second region. A number of the first protrusions per 1 mm2 is a first protrusion number. A number of the second protrusions per 1 mm2 is a second protrusion number. The first protrusion number is 30 or less, and the second protrusion number is larger than the first protrusion number.

Abstract: A cutting tool may include a base member and a diamond layer located on the base member. The cutting tool may include a first surface, a second surface, and a cutting edge located in at least a part of a ridge line which the first surface intersects with the second surface. The diamond layer may be located in at least a part of the first surface, at least a part of the second surface, and at least a part of the cutting edge. A maximum height in the cutting edge may be smaller than a maximum height in the first surface. The maximum height in the cutting edge may be greater than a maximum height in the second surface.

Abstract: A rotary tool may include a main body having a circular columnar body, including a rotation axis and extending from a first end to a second end. The main body may include first flutes, second flutes, a first cutting edge, and a second cutting edge. The first flutes may have a helix angle ?1 and the second flutes a reverse helix angle ?2. The first cutting edge may be located on a ridge line where the outer periphery of the main body intersects with the first flutes and the second cutting edge at a ridge line where the outer periphery of the main body intersects with the second flutes. The ?2 may be larger than the ?1, m?5, m?n?3, and m and n are coprime numbers, where m is the number of the first flutes and n is the number of the second flutes.

Abstract: A vehicle recognition device includes: an acquisition unit configured to acquire a value of a parameter relating to a degree of dirtiness of an in-vehicle LIDAR device detecting objects using light or a radiowave close to light; and a judgment unit configured to judge a state of the in-vehicle LIDAR device to be an abnormal state in a case in which the value of the parameter continuously exceeds a threshold during a first period, and the amount of change of the value of the parameter in a second period including a part or whole of the first period is within a reference range.

Abstract: A rotary tool may include a main body having a bar-shape. The main body may include a cutting edge part at a first end, and a shank part at a second end. The cutting edge part may include a base member including a plurality of ridges, and a coating layer located on at least the ridges. The coating layer may include a layer containing SixM1-x(C1-yNy) (where M is at least one kind selected from Ti, Al, Cr, W, Mo, Ta, Hf, Nb, Zr, and Y, 0.01?x?0.55, and 0?y?1). A first region of the coating layer is closer to the first end than a second region of the coating layer, which is further away from the first end than the first region, and a content ratio of Si in the first region is lower than a content ratio of Si in the second region.

Abstract: A rotary tool may include a main body having a circular columnar body, including a rotation axis and extending from a first end to a second end. The main body may include first flutes, second flutes, a first cutting edge, and a second cutting edge. The first flutes may have a helix angle ?1 and the second flutes a reverse helix angle ?2. The first cutting edge may be located on a ridge line where the outer periphery of the main body intersects with the first flutes and the second cutting edge at a ridge line where the outer periphery of the main body intersects with the second flutes. The ?2 may be larger than the ?1, m?5, m?n?3, and m and n are coprime numbers, where m is the number of the first flutes and n is the number of the second flutes.

Abstract: According to the present disclosure, a coated member is provided with a base material and a diamond layer located on the base material. When a ratio (SP3/SP2) obtainable from an SP3 peak derived from diamond crystals measurable by Raman spectroscopy and an SP2 peak derived from a graphite phase is referred to as an SP3 ratio, an SP3 ratio at a first measuring point with a thickness up to 1 ?m extending from an interface of the base material and the diamond layer toward the diamond layer is higher than an SP3 ratio at a second measuring point that is intermediate in a thickness direction of the diamond layer.

Abstract: A cutting tool may include a base member and a diamond layer located on the base member. The cutting tool may include a first surface, a second surface, and a cutting edge located in at least a part of a ridge line which the first surface intersects with the second surface. The diamond layer may be located in at least a part of the first surface, at least a part of the second surface, and at least a part of the cutting edge. A maximum height in the cutting edge may be smaller than a maximum height in the first surface. The maximum height in the cutting edge may be greater than a maximum height in the second surface.

Abstract: A rotary tool may include a main body having a bar-shape. The main body may include a cutting edge part at a first end, and a shank part at a second end. The cutting edge part may include a base member including a plurality of ridges, and a coating layer located on at least the ridges. The coating layer may include a layer containing SixM1-x(C1-yNy) (where M is at least one kind selected from Ti, Al, Cr, W, Mo, Ta, Hf, Nb, Zr, and Y, 0.01?x?0.55, and 0?y?1). A first region of the coating layer is closer to the first end than a second region of the coating layer, which is further away from the first end than the first region, and a content ratio of Si in the first region is lower than a content ratio of Si in the second region.

Abstract: In an embodiment, a coated tool is disclosed. The coated tool includes a base material, a first layer on the base material, and a second layer coated on the first layer. The first layer contains diamond crystals therein and has a first mean crystal size. The second layer contains diamond crystals therein and has a second mean crystal size that is smaller than the first mean crystal size. The first and the second layers contain hydrogen, and have a first hydrogen content and a second hydrogen content respectively. The second hydrogen content is larger than the first hydrogen content.

Abstract: A cutting tool such as a drill (1) in which a coating layer (6) is provided to the surface of a base body (5) having a rod shape, which is equipped with a cutting edge (2) provided to at least the tip portion (A) of the base body (5) having a rod shape and a chip discharge section (4) provided adjacent to the cutting edge (2) so as to extend rearwards (i.e., towards the rear end) from the tip portion (A), the coating layer (6) comprising a mixture phase of diamond and graphite and having a diamond content ratio which is lower in a rear end located 10 mm rearward from the tip than in the tip portion (A).

Abstract: According to the present disclosure, a coated member is provided with a base material and a diamond layer located on the base material. When a ratio (SP3/SP2) obtainable from an SP3 peak derived from diamond crystals measurable by Raman spectroscopy and an SP2 peak derived from a graphite phase is referred to as an SP3 ratio, an SP3 ratio at a first measuring point with a thickness up to 1 ?m extending from an interface of the base material and the diamond layer toward the diamond layer is higher than an SP3 ratio at a second measuring point that is intermediate in a thickness direction of the diamond layer.

Abstract: A coated tool is provided which is capable of inhibiting occurrence of chipping, peeling-off, or the like of a diamond layer by enhancing fracture resistance, and which has the diamond layer with high wear resistance. The coating tool is, for example, a drill having a diamond layer coated on a surface of a base material. The diamond layer has a first coating layer located close to the base material, and a second coating layer located on the first coating layer. A mean particle size of second diamond particles constituting the second coating layer is smaller than a mean particle size of first diamond particles constituting the first coating layer. The diamond layer contains hydrogen, and a hydrogen content in the second coating layer is larger than a hydrogen content in the first coating layer.

Abstract: A cutting tool such as a drill (1) in which a coating layer (6) is provided to the surface of a base body (5) having a rod shape, which is equipped with a cutting edge (2) provided to at least the tip portion (A) of the base body (5) having a rod shape and a chip discharge section (4) provided adjacent to the cutting edge (2) so as to extend rearwards (i.e., towards the rear end) from the tip portion (A), the coating layer (6) comprising a mixture phase of diamond and graphite and having a diamond content ratio which is lower in a rear end located 10 mm rearward from the tip than in the tip portion (A).

Abstract: A cutting tool including a base member and a coating layer. The base member includes a rake face and a flank face. The coating layer has a composition represented by a first chemical formula of CraM1-a(C1-xNx), wherein M represents at least one selected from Ti, Al, Si, W, Mo, Ta, Hf, Nb, Zr, and Y, 0.01?a?0.5, and 0?x?1. The coating layer is disposed on the base member and includes a cutting edge at an intersecting ridge line between the rake face and the flank face. The coating layer further comprises droplets thereon. An average composition of the droplets disposed on the rake face has a Cr content higher than the Cr content of the average composition of the droplets disposed on the flank face.

Abstract: A cutting tool with a substrate which is coated with a coating layer containing TiaAlbNbdMe(C1-xNx), where M represents one or more elements selected from among Si, W, Mo, Ta, Hf, Cr, Zr and Y, where 0.1?a?0.7, 0?b?0.8, 0.02?d?0.25, 0?e?0.25, a+b+d+e=1.0 and 0?x?1 and is provided with a rake face; a flank face; a cutting edge between the rake face and the flank face; and droplets on the surface of the coating layer. The droplets include finer droplets having particle diameters of 300 nm or less; and coarser droplets having particle diameters of 1000 nm or more. The flank face has a higher percentage of the finer droplets than the rake face. An Nb content in the coarser droplets on the flank face is higher than an Nb of the coarser droplets on the rake face.

Abstract: A cutting tool in which wear resistance is improved by suppressing sudden chipping on the flank face while suppressing oxidation of the coating layer on the rake face, and thereby has a long lifespan even under cutting conditions in which deposition and edge damage easily occur. In the cutting tool, a coating layer represented by Ti1-a-b-cAlaWbMc(C1-xNx), with M selected as at least one of silicon, yttrium, and a metal belonging to group 4, 5, or 6 on the periodic table, excluding titanium and tungsten, and 0.3?a?0.6, 0.01?b?0.2, 0?c?0.2, and 0?x?1, being provided on the surface of a main cutting tool body having a flank face and a rake face, and the content ratio of tungsten on the flank face is higher than the content ratio of tungsten on the rake face.

Abstract: Provided is a surface-coated tool, such as a cutting tool, in which a surface of a substrate 2 is coated with a coating layer 6. The coating layer 6 comprises a lower layer 8 and an upper layer 9. The lower layer 8 and the upper layer 9 are both composed of columnar particles 10 extending vertically with respect to the surface of the substrate 2. The mean crystal width of the columnar particles 10b constituting the upper layer 9 is smaller than the mean crystal width of the columnar particles constituting the lower layer. Dispersed particles containing tungsten exist in both the lower layer and the upper layer. The distribution density of the dispersed particles existing in the upper layer is smaller than the distribution density of the dispersed particles existing in the lower layer. The surface-coated tool includes the coating layer to improve wear resistance and fracture resistance.

Abstract: A cutting tool including a base member and a coating layer. The base member includes a rake face and a flank face. The coating layer has a composition represented by a first chemical formula of CraM1-a(C1-xNx), wherein M represents at least one selected from Ti, Al, Si, W, Mo, Ta, Hf, Nb, Zr, and Y, 0.01?a?0.5, and 0?x?1. The coating layer is disposed on the base member and includes a cutting edge at an intersecting ridge line between the rake face and the flank face. The coating layer further comprises droplets thereon. An average composition of the droplets disposed on the rake face has a Cr content higher than the Cr content of the average composition of the droplets disposed on the flank face.

Abstract: A cutting tool with a substrate which is coated with a coating layer containing TiaAlbNbdMe(C1-xNx), where M represents one or more elements selected from among Si, W, Mo, Ta, Hf, Cr, Zr and Y, where 0.1?a?0.7, 0?b?0.8, 0.02?d?0.25, 0?e?25, a+b+d+e=1.0 and 0?x?1 and is provided with a rake face; a flank face; a cutting edge between the rake face and the flank face; and droplets on the surface of the coating layer. The droplets include finer droplets having particle diameters of 300 nm or less; and coarser droplets having particle diameters of 1000 nm or more. The flank face has a higher percentage of the finer droplets than the rake face. An Nb content in the coarser droplets on the flank face is higher than an Nb of the coarser droplets on the rake face.