Abstract: A conductive film laminate according to an embodiment of the present disclosure includes a carrier substrate, a conductive film liner on the carrier substrate, and a conductive adhesive film formed on the conductive film liner. The conductive film liner and the conductive adhesive film may form a cut pattern which does not cover the entire carrier substrate. The conductive adhesive film having a narrow width can be stably supplied on the carrier substrate. The conductive adhesive film may be used as an anisotropic conductive film for a bonding process of a touch sensor.

Abstract: The present disclosure relates to a cutting insert, and a cutting insert according to the present disclosure comprises: an upper surface and a lower surface oriented in opposite directions; a first and a second shorter side surface connecting the upper surface and the lower surface to each other and oriented in opposite directions; a first and a second longer side surfaces connecting the upper surface and the lower surface to each other, connecting the first and the second shorter side surfaces to each other, oriented in opposite directions, and being longer than the first and the second shorter side surfaces; and a through hole extending through the upper surface and the lower surface, wherein when viewed toward the upper surface, the first longer side surface has two side portions, each side portion having an inclined shape with reference to the center portion.

Abstract: The present invention relates to a cutting tool, which performs, like a drill or a ball end mill, cutting while rotating in a state in which the center of the tip end is in contact with a work material, and includes a wear-resistant layer formed at the tip end thereof, wherein a portion of the wear-resistant layer is selectively removed through tip end polishing from the center of the tip end of the drill or the ball end mill to a predetermined area, so as to restrain micro-brittle wear generated in an ultra-low speed region, and thus remarkably improving the cutting lifespan of the cutting tool such as the drill or the ball end mill.

Abstract: The present invention relates to a hard film having improved wear resistance and improved toughness. A hard film according to the present invention is formed by using a PVD method on a surface of a base material, wherein: the hard film includes a first hard layer and a second hard layer; the first hard layer has a thickness of approximately 0.1-3.0 ?m and is composed of Ti1-aAlaN (0.3?a?0.7), and has a single phase structure; and the second hard layer has a thickness of approximately 0.5-10 ?m and is composed of Ti1-a-bAlaMebN (0.3?a?0.7, 0?b?0.05, the Me being at least one selected from V, Zr, Si, Nb, Cr, Mo, Hf, Ta and W); according to an XRD phase analysis method, a ratio ([200]/[111]) of the intensity of a [200] peak to the intensity of a [111] peak is approximately 1.5 or higher; the second hard layer preferentially grows in a [200] direction; the [200] peak is located at approximately 42.7°-44.6° and is composed of three phases, and the [111] peak is located at approximately 37.0°-38.

Abstract: The present invention relates to a cutting tool, which performs, like a drill or a ball end mill, cutting while rotating in a state in which the center of the tip end is in contact with a work material, and includes a wear-resistant layer formed at the tip end thereof, wherein a portion of the wear-resistant layer is selectively removed through tip end polishing from the center of the tip end of the drill or the ball end mill to a predetermined area, so as to restrain micro-brittle wear generated in an ultra-low speed region, and thus remarkably improving the cutting lifespan of the cutting tool such as the drill or the ball end mill.

Abstract: The present invention relates to a hard film having improved wear resistance and improved toughness. A hard film according to the present invention is formed by using a PVD method on a surface of a base material, wherein: the hard film includes a first hard layer and a second hard layer; the first hard layer has a thickness of approximately 0.1-3.0 ?m and is composed of Ti1-aAlaN (0.3?a?0.7), and has a single phase structure; and the second hard layer has a thickness of approximately 0.5-10 ?m and is composed of Ti1-a-bAlaMebN (0.3?a?0.7, 0?b?0.05, the Me being at least one selected from V, Zr, Si, Nb, Cr, Mo, Hf, Ta and W); according to an XRD phase analysis method, a ratio ([200]/[111]) of the intensity of a [200] peak to the intensity of a [111] peak is approximately 1.5 or higher; the second hard layer preferentially grows in a [200] direction; the [200] peak is located at approximately 42.7°-44.6° and is composed of three phases, and the [111] peak is located at approximately 37.0°-38.

Abstract: The present disclosure relates to a cutting insert, and a cutting insert according to the present disclosure comprises: an upper surface and a lower surface oriented in opposite directions; a first and a second shorter side surface connecting the upper surface and the lower surface to each other and oriented in opposite directions; a first and a second longer side surfaces connecting the upper surface and the lower surface to each other, connecting the first and the second shorter side surfaces to each other, oriented in opposite directions, and being longer than the first and the second shorter side surfaces; and a through hole extending through the upper surface and the lower surface, wherein when viewed toward the upper surface, the first longer side surface has two side portions, each side portion having an inclined shape with reference to the center portion.

Abstract: A hard coating includes a thin film layer which has a total thickness of 0.5-10 ?m and has an overall composition of Al1-a-bTiaMebN (0.2<a?0.6, 0<b?0.15), where Me is a nitride constituent element having a thermal expansion coefficient of greater than 2.7×10?6/° C. and less than 9.35×10?6/° C., wherein the thin film layer has a structure in which a nano-multilayered-structure of thin layers A, B and C, thin layer B being disposed between thin layer A and thin layer C, is repeatedly laminated at least once.

Abstract: The present invention relates to a cutting tool, which performs, like a drill or a ball end mill, cutting while rotating in a state in which the center of the tip end is in contact with a work material, and includes a wear-resistant layer formed at the tip end thereof, wherein a portion of the wear-resistant layer is selectively removed through tip end polishing from the center of the tip end of the drill or the ball end mill to a predetermined area, so as to restrain micro-brittle wear generated in an ultra-low speed region, and thus remarkably improving the cutting lifespan of the cutting tool such as the drill or the ball end mill.

Abstract: The present invention relates to a cutting tool, which performs, like a drill or a ball end mill, cutting while rotating in a state in which the center of the tip end is in contact with a work material, and includes a wear-resistant layer formed at the tip end thereof, wherein a portion of the wear-resistant layer is selectively removed through tip end polishing from the center of the tip end of the drill or the ball end mill to a predetermined area, so as to restrain micro-brittle wear generated in an ultra-low speed region, and thus remarkably improving the cutting lifespan of the cutting tool such as the drill or the ball end mill.

Abstract: The present invention relates to a hard coating including an MT-TiCN layer and an ?-alumina layer which are formed by using a chemical vapor deposition method. A hard coating for cutting tools, which is a coating formed on a base material of a cutting tool formed of a hard material, the coating comprising: a TiCN layer; and an ?-alumina layer formed on the TiCN layer, wherein: the ?-alumina layer has a main peak (maximal strength peak) of (006) plane located between 20-40 degrees during a psi rocking analysis by an XRD; a residual stress in the ?-Al2O3 layer is ?0.9-0.4 GPa; the TiCN layer is composed of TiCxNyOz (x+y+z?1, x>0, y>0, z?0); a composition ratio of C/(C+N) is greater than or equal to 0.4 and smaller than 0.5; the ratio of TC(220)/TC(422) is smaller than 0.45; and the ratio of TC(220)/TC(311) is less than 0.45.

Abstract: A cemented carbide comprises particles including a tungsten carbide (WC) as a main component; a binder phase including cobalt (Co) as a main component; and particles including a carbide or a carbonitride of at least one selected from the group consisting of Group 4a, 5a, and 6a elements, or a solid solution thereof, wherein a cubic phase free layer (CFL), in which the carbide or the carbonitride is not formed, is formed from a surface of the cemented carbide to a depth of 5 ?m to 50 ?m.

Abstract: The technical objective of the present invention is to provide a double-sided cutting insert having a high feed rate, which can increase the edge strength and reduce the cutting load, and thus can be suitable for high feed rate processing.

Abstract: The technical objective of the present invention is to provide a cutting insert cooling device capable of easily mounting a spraying member to a cutting tool while preventing the rotation thereof and eliminating the risk of losing a screw. To this end, the cutting insert cooling device according to the present invention, capable of spraying cooling water toward the cutting insert coupled to the cutting tool, comprises: a head part which forms the terminal end portion of the cutting tool and has a cooling water guide flow path part, and to which the cutting insert is coupled; a spraying member having a cooling water spouting flow path part to spray, toward the cutting insert, the cooling water guided through the cooling water guide flow path part; and an attaching and detaching unit that slides the spraying member to the head part so as to attach and detach the same.

Abstract: A cutting tool comprises a base material which includes particles including a tungsten carbide (WC) as a main component, a binder phase including cobalt (Co) as a main component, and particles including a carbide or a carbonitride of at least one selected from the group consisting of Group 4a, 5a, and 6a elements, or a solid solution thereof; and a hard film formed on the base material, wherein the hard film comprises at least an alumina layer, a cubic phase free layer (CFL), in which the carbide or the carbonitride is not formed, is formed from a surface of the base material to a depth of 10 ?m to 50 ?m, and a Co content of a surface of the CFL is 80% or more of a maximum Co content of the CFL.

Abstract: Provided are a cutting insert and a tool holder on which the cutting insert is provided. The cutting insert includes a circular upper surface, a circular lower surface, a cylindrical lateral surface for connecting the upper surface and the lower surface, an upper cutting edge formed between the upper surface and the lateral surface, a lower cutting edge formed between the lower surface and the lateral surface, and a plurality of rotation-preventing parts provided at the lateral surface so as to prevent the cutting insert from rotating with respect to the tool holder. Each rotation preventing part includes an inner curved surface recessed toward the center of the lateral surface and convexly rounded so as to form concentric circles in conjunction with the lateral surface, and a stepped rotation-preventing surface parallel to the axial direction of the insert and connecting the inner curved surface and the lateral surface.

Abstract: The purpose of the present invention is to provide a cutting insert capable of reducing cutting load and enhancing squareness.

Abstract: A cutting insert for an indexable drill according to the present disclosure may be used for external cutting or internal cutting depending on a position and a direction in which the cutting insert is installed even though a single type of cutting insert is provided. In addition, the cutting insert for an indexable drill according to the present disclosure has a section of the internal cutting edge which is involved in a cutting process or a section of the internal cutting edge which is not involved in the cutting process, which are clearly distinguished from each other, and as a result, the cutting insert may be rotated and mounted, and reversed and mounted on a drill body, such that maximum eight corners may be used to perform a cutting process.

Abstract: The technical objective of the present invention is to provide a double-sided cutting insert having a high feed rate, which can increase the edge strength and reduce the cutting load, and thus can be suitable for high feed rate processing.

Abstract: A technical object of the present disclosure is to provide an insert, which can maintain rigidity thereof regardless of a clearance angle of a clearance surface that forms a circular cutting edge. To this end, the insert according to the present disclosure includes a circular upper surface, a circular lower surface, and a clearance surface portion connecting the upper surface and the lower surface. The clearance surface portion is divided into first and second clearance surfaces along a circumference thereof, by a first wave line that forms a waveform of valleys facing the lower surface and mounts facing the upper surface.