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    Cutting insert for machine tools for metalworking
    2.
    外观设计
    Cutting insert for machine tools for metalworking 有权

    公开(公告)号：USD1044896S1

    公开(公告)日：2024-10-01

    申请号：US35517224

    申请日：2023-03-31

    申请人： KORLOY INC.

    设计人： Nam Jun Park ,  Byung Hoon Min ,  Young Heum Kim

    摘要： 1. Cutting insert for machine tools for metalworking
    1.1 : Perspective
    1.2 : Front
    1.3: Back
    1.4: Top
    1.5: Bottom
    1.6 : Left
    1.7: Right
    The broken lines shown in the drawings depict portions of the cutting insert for machine tools for metalworking which form not part of the claimed design.

    CUTTING INSERT AND CUTTING TOOL HAVING SAME MOUNTED THEREON
    3.
    发明公开
    CUTTING INSERT AND CUTTING TOOL HAVING SAME MOUNTED THEREON 审中-公开

    公开(公告)号：US20240001462A1

    公开(公告)日：2024-01-04

    申请号：US18251456

    申请日：2021-08-26

    申请人： KORLOY INC.

    发明人： Nam Seon LEE ,  Ki Chan NAM ,  Tae Kyun KIM ,  Young Heum KIM

    IPC分类号： B23C5/02 ,  B23C5/20

    CPC分类号： B23C5/02 ,  B23C5/205 ,  B23C2200/28

    摘要： A cutting insert according to an embodiment of the present invention is a double-sided cutting insert comprising an upper surface, a lower surface, a side surface, a cutting edge, and a mounting hole penetrating the upper surface and the lower surface, in which the upper surface is provided with a single upper surface boss portion that surrounds the mounting hole and is flat, the cutting edge includes a main cutting edge, a corner cutting edge extending from the main cutting edge, a sub-cutting edge extending from the corner cutting edge, and a side portion extending from the sub-cutting edge, a first main cutting edge flank surface extending from the main cutting edge forms an acute angle with an extension line of the upper surface boss portion, a sub-cutting edge chip breaker surface extending from the sub-cutting edge is at a gradually increasing angle with the extension line of the upper surface boss portion, as the sub-cutting edge chip breaker surface is distanced away from the corner cutting edge, and when the cutting insert is viewed into the upper surface, a side portion surface extending from the side portion is concavely recessed.

    Cutting tool having partially-removed film formed thereon
    6.
    发明授权
    Cutting tool having partially-removed film formed thereon 有权

    公开(公告)号：US11376675B2

    公开(公告)日：2022-07-05

    申请号：US16846441

    申请日：2020-04-13

    申请人： KORLOY INC.

    发明人： Seung-Su Ahn ,  Je-Hun Park ,  Kyung-il Kim ,  Sung-Hyun Kim ,  Sung-Gu Lee ,  Sun-Yong Ahn

    IPC分类号： B23B51/00 ,  B23C5/10

    摘要： 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.

    Cutting insert and cutting tool on which same is mounted
    7.
    发明授权
    Cutting insert and cutting tool on which same is mounted 有权

    公开(公告)号：US11260461B2

    公开(公告)日：2022-03-01

    申请号：US16962041

    申请日：2018-12-06

    申请人： KORLOY INC.

    发明人： Min Seok Oh ,  Ki Chan Nam ,  Byeong Yun Lee ,  Hyo San Kim ,  Young Heum Kim

    IPC分类号： B23C5/20 ,  B23C5/06

    摘要： A cutting insert of the present invention comprises: an upper surface and a lower surface; first and second lateral surfaces; first and second cutting edge parts; and corner cutting edges, wherein the first cutting edge part includes: a first main cutting edge for forming one end at a portion spaced farthest away from the corner cutting edge; a first sub-cutting edge connected to the corner cutting edge; and a first auxiliary cutting edge for connecting the first main cutting edge and the first sub-cutting edge so as to form a step between the same, and the first sub-cutting edge and the corner cutting edge form one straight line when viewed toward the first lateral surface, and are inclined upward in the direction opposite to the direction toward the lower surface while gradually going in the direction toward the second cutting edge part.

    Single-sided high feed cutting insert and cutting tool equipped with same
    8.
    发明授权
    Single-sided high feed cutting insert and cutting tool equipped with same 有权

    公开(公告)号：US11117201B2

    公开(公告)日：2021-09-14

    申请号：US16478516

    申请日：2017-12-15

    申请人： KORLOY INC.

    发明人： Sang Yong Lee ,  Young Nam Choi ,  Jae Man Park

    IPC分类号： B23C5/20

    摘要： The technical problem to be solved by the present disclosure is to provide a single-sided high feed cutting insert which can have increased edge strength and reduced cutting load so as to be suitable for high feed machining. To this end, the single-sided high feed cutting insert of the present disclosure comprises: a short cutting edge disposed between a major surface and a short lateral surface; a long cutting edge disposed between the major surface and a long lateral surface; and a corner cutting edge disposed between the short cutting edge and the long cutting edge, wherein the short cutting edge has an outwardly convex curved shape when viewed from the major surface, and a minor surface has a straight shape when viewed from the short and long lateral surfaces, respectively.

    Hard coating film for cutting tool
    10.
    发明授权
    Hard coating film for cutting tool 有权

    公开(公告)号：US10711345B2

    公开(公告)日：2020-07-14

    申请号：US15761112

    申请日：2017-05-30

    申请人： KORLOY INC.

    发明人： Seong-woo Cho ,  Dong-youl Lee ,  Jae-hoon Kang ,  Soon-yong Hong ,  Sun-yong Ahn ,  Young-heum Kim

    IPC分类号： C23C16/02 ,  C23C16/36 ,  C23C28/04 ,  C23C16/40 ,  C23C16/56 ,  C23C30/00

    摘要： The present invention relates to a hard coating including an MT-TiCN layer and an α-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 α-alumina layer formed on the TiCN layer, wherein: the α-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 α-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.