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    Rotatable cutting head having tip portion with radially extending cutting edges forming a cutting profile having concave and convex sub-portions
    1.
    发明授权
    Rotatable cutting head having tip portion with radially extending cutting edges forming a cutting profile having concave and convex sub-portions 有权

    公开(公告)号：US12109635B2

    公开(公告)日：2024-10-08

    申请号：US17677073

    申请日：2022-02-22

    申请人： ISCAR, LTD.

    发明人： Shim'on Shitrit ,  Anatoly Yanovski

    IPC分类号： B23B51/02 ,  B23B51/00

    CPC分类号： B23B51/0007 ,  B23B51/0003 ,  B23B2251/0825 ,  B23B2251/087 ,  B23B2251/12

    摘要： A cutting head rotatable about a central axis, includes a tip portion and an intermediate portion. The tip portion has an axially forwardmost tip point contained in the central axis and at least two axially forward-facing front surfaces, each front surface having a radially extending cutting edge. The intermediate portion has at least two head lands circumferentially alternating with at least two chip evacuation passages, each head land having a leading edge extending axially rearwardly from the tip portion. The cutting edges are contained in an imaginary annular ring surface, and a first imaginary radial plane containing the central axis intersects the imaginary annular ring surface to form two imaginary radial cutting profiles. Each imaginary radial cutting profile has consecutively radially outward extending first, second, and third cutting profile portions, and the second cutting profile portion includes first and second concave sub-portions spaced apart by a first convex sub-portion.

    Tool holder having anti-vibration arrangement and cutting tool provided with tool holder
    3.
    发明授权
    Tool holder having anti-vibration arrangement and cutting tool provided with tool holder 有权

    公开(公告)号：US12103091B2

    公开(公告)日：2024-10-01

    申请号：US17154288

    申请日：2021-01-21

    申请人： Iscar, Ltd.

    发明人： Nir Cohen

    IPC分类号： B23B29/02

    CPC分类号： B23B29/022 ,  B23B2250/16

    摘要： An elongated tool holder includes a tool anti-vibration component having a mass housing portion and an anti-vibration arrangement. The anti-vibration arrangement includes an enclosed interior holder cavity formed in the mass housing portion. The anti-vibration arrangement also includes a vibration absorbing mass disposed within the holder cavity and elastically suspended therein by at least three non-torus shaped, resilient suspension members contacting an inwardly facing cavity wall surface. A cutting tool is provided with the tool holder.

    TURNING TOOL
    4.
    发明公开
    TURNING TOOL 审中-公开

    公开(公告)号：US20240123516A1

    公开(公告)日：2024-04-18

    申请号：US18547064

    申请日：2021-12-16

    申请人： ISCAR LTD. ,  TUNGALOY CORPORATION

    发明人： Gil HECHT ,  Yusuke SUZUKI

    IPC分类号： B23B27/16

    CPC分类号： B23B27/1611

    摘要： A turning tool (1) that does not easily interfere with other tools and can supply a sufficient amount of coolant is provided. The turning tool (1) includes: a cutting insert (10) which is mirror-image symmetric with respect to a first and second symmetric surfaces (M1, M2); and a tool body (2) which has a first discharge port (5) to supply coolant to a first cutting edge (21E) of the cutting insert (10) from a first rake surface (21R) side. The first discharge port (5) is disposed between a second flat surface (32) and a first reference surface (Vxz) which is parallel with the second flat surface (32) and includes an edge line of the first cutting edge (21E).

    Rotatable cutting head having tip portion with three radially extending cutting edges forming a rectilinear rotational profile
    5.
    发明授权
    Rotatable cutting head having tip portion with three radially extending cutting edges forming a rectilinear rotational profile 有权

    公开(公告)号：US11951553B2

    公开(公告)日：2024-04-09

    申请号：US17215223

    申请日：2021-03-29

    申请人： ISCAR, LTD.

    发明人： Shim'on Shitrit ,  Hytham Kablan

    IPC分类号： B23B51/02

    CPC分类号： B23B51/02 ,  B23B2251/04 ,  B23B2251/047 ,  B23B2251/082 ,  B23B2251/14 ,  B23B2251/18 ,  B23B2251/202

    摘要： A cutting head rotatable about a central axis, comprising a tip portion and an intermediate portion. The tip portion has an axially forwardmost tip point contained in the central axis and three axially forward facing front surfaces forming three chisel edges extending axially rearwardly away from the tip point, each front surface having a radially extending cutting edge comprising a secondary cutting-edge portion extending radially outwardly from one of the chisel edges, and a primary cutting-edge portion extending radially outwardly therefrom. Each primary cutting-edge portion is contained in an imaginary annular ring surface having an annular ring width spanning at least radially inner and outer end points thereof. In a front-end view of the cutting head, each primary cutting-edge portion is concave, and radial planes intersect the imaginary annular surface to form imaginary rectilinear lines, each having a length equal to the annular ring width.

    CUTTING BLADE HAVING A CLAMPING BORE WITH A COOLANT INLET, BLADE HOLDER AND CUTTING TOOL
    8.
    发明公开
    CUTTING BLADE HAVING A CLAMPING BORE WITH A COOLANT INLET, BLADE HOLDER AND CUTTING TOOL 审中-公开

    公开(公告)号：US20240001454A1

    公开(公告)日：2024-01-04

    申请号：US17855878

    申请日：2022-07-01

    申请人： ISCAR, LTD.

    发明人： GIL HECHT

    IPC分类号： B23B27/16 ,  B23B29/04

    CPC分类号： B23B27/16 ,  B23B29/043 ,  B23B2210/08

    摘要： A cutting tool with a coolant system having a cutting blade, a cutting insert and a blade holder. The cutting blade has a first blade bore having a first bore peripheral surface and an entry gap recessed therein. On assembling the cutting tool, a fastening element clamps the first bore peripheral surface and seals the first blade bore, releasably securing the cutting blade to the blade holder and allowing a fluid connection between the blade holder and the cutting blade.

    INSERT ADAPTOR FOR PARTING OFF
    9.
    发明公开
    INSERT ADAPTOR FOR PARTING OFF 审中-公开

    公开(公告)号：US20230405688A1

    公开(公告)日：2023-12-21

    申请号：US18455271

    申请日：2023-08-24

    申请人： ISCAR, LTD.

    发明人： DAVID BEN HAROUCHE ,  ASAF MALKA

    IPC分类号： B23B29/04 ,  B23B27/08

    CPC分类号： B23B29/043 ,  B23B2250/12 ,  B23B2205/02 ,  B23B27/08

    摘要： An insert adaptor for parting off including an adaptor index axis and parallel adaptor first and second sides connected by an adaptor peripheral surface which extends peripherally around the adaptor. The adaptor peripheral surface is formed with at least three pockets and bearing surfaces extending between the pockets. Each of the pockets comprises resilient upper and lower clamp surfaces.

    Cutting head having four cutting portions and two convex clamping surfaces, and rotary cutting tool
    10.
    发明授权
    Cutting head having four cutting portions and two convex clamping surfaces, and rotary cutting tool 有权

    公开(公告)号：US11819926B2

    公开(公告)日：2023-11-21

    申请号：US17527638

    申请日：2021-11-16

    申请人： ISCAR, LTD.

    发明人： Shim'on Shitrit ,  Hytham Kablan

    IPC分类号： B23B27/16 ,  B23B51/00

    CPC分类号： B23B27/16 ,  B23B51/0003 ,  B23B51/0005

    摘要： A cutting head rotatable about a head axis has a cap portion and a rigid mounting protuberance joined to the cap portion. The cap portion has exactly four cutting portions circumferentially alternating with four head flutes and a head base surface facing in an axially rearward direction. The mounting protuberance extends axially rearwardly from the head base surface and has exactly two circumferentially spaced apart convex clamping surfaces. In a cross-section taken in a first horizontal plane perpendicular to the head axis and intersecting the mounting protuberance, only the two clamping surfaces are circumscribed by an imaginary first circle having a first diameter and a center coincident with the head axis. A rotary cutting tool has an elongated tool shank with a head receiving pocket at a forward end thereof and the cutting head of the type described above releasably secured to the head receiving pocket.