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    Composite part and cutting tool
    5.
    发明授权
    Composite part and cutting tool 有权

    公开(公告)号：US10661345B2

    公开(公告)日：2020-05-26

    申请号：US15755402

    申请日：2016-08-31

    申请人： MITSUBISHI MATERIALS CORPORATION

    发明人： Makoto Igarashi ,  Kazutaka Fujiwara

    IPC分类号： B22F3/00 ,  B22F7/06 ,  B32B18/00 ,  C22C29/08 ,  B23K20/02 ,  B23B27/18 ,  B22F3/14

    摘要： A composite member in which WC-based cemented carbide members are bonded to each other via a bonding layer formed by solid phase diffusion bonding of a bonding member made of a Ti foil. The bonding layer is constituted by first layers adjacent to the WC-based cemented carbide members and made of a TiC phase and a metal W phase in which an average area ratio of the TiC phase is 40 to 60%. The bonding layer also includes second layers adjacent to the first layers and made of a TiCo phase and a metal Ti phase in which an average area ratio of the TiCo phase is 50 to 95%, and a residual Ti layer.

    REPLACEABLE-TIP CUTTING TOOL MAIN BODY AND REPLACEABLE-TIP CUTTING TOOL
    6.
    发明申请
    REPLACEABLE-TIP CUTTING TOOL MAIN BODY AND REPLACEABLE-TIP CUTTING TOOL 审中-公开

    公开(公告)号：US20190126365A1

    公开(公告)日：2019-05-02

    申请号：US16096383

    申请日：2016-11-01

    申请人： OSG CORPORATION

    发明人： Jiro OSAWA ,  Tamotsu NAGAI

    IPC分类号： B23C5/10 ,  B23B27/18

    摘要： A main body (3) of a replaceable-tip cutting tool (1) includes a cylinder-shaped cylindrical portion (32) made from a first metal material and extending in an axial direction, and with a female thread portion (33) provided on an inner circumference (40) of the cylindrical portion (32) and capable of being screwed together with a male threaded portion (24) of a cutting head (2). The female thread portion (33) includes a first female thread portion (34) and a second female thread portion (35). The first female thread portion (34) is a portion between a top of a female thread crest (37) of the female thread portion (33) and a portion of the female thread portion (35) that is on the female thread crest (37) side of a female thread root (36) and on the female thread root side of a portion corresponding to an effective diameter of the female thread portion (33). The first female thread portion (34) is made from a second metal material that is different from the first metal material. The second female thread portion (35) is continuous with the inner circumference (40) of the cylindrical portion (32). The second female thread portion is a remaining portion of the female thread portion excluding the first female thread portion. The second female thread portion (35) is made from the first metal material.

    CUTTING TOOL AND METHOD OF MANUFACTURING A CUTTING TOOL
    7.
    发明申请
    CUTTING TOOL AND METHOD OF MANUFACTURING A CUTTING TOOL 审中-公开

    公开(公告)号：US20170144229A1

    公开(公告)日：2017-05-25

    申请号：US15320580

    申请日：2014-06-23

    申请人： SUMITOMO ELECTRIC HARDMETAL CORP.

    发明人： Christoph Zeiner ,  Makoto Abe

    IPC分类号： B23B27/18 ,  B23B27/00

    CPC分类号： B23B27/18 ,  B23B27/005 ,  B23B27/007 ,  B23B2226/125 ,  B23B2240/08 ,  B23B2250/12 ,  B23P15/30 ,  B24B3/34

    摘要： The present invention provides a cutting tool which comprises a cutting tool insert with a tip portion of cBN material having a cutting edge formed therein and a base portion forming a sintered composition with the tip portion, and a body portion coupling the cutting tool insert with a shank of the cutting tool, wherein the cutting tool insert has a rake face and a first flank face defining the cutting edge. The rake face has a negative rake angle relative to an axis parallel to a centre axis of the body portion. A second flank face defining a further edge with the first flank face is formed such that the cutting edge and the further edge do not have a common vertex. The second flank face is tilted with respect to an axis parallel to a centre axis of the body portion by an angle greater than 0°.

    Method for manufacturing drill cutters and structure thereof
    8.
    发明申请
    Method for manufacturing drill cutters and structure thereof 审中-公开
    钻刀的制造方法及其结构

    公开(公告)号：US20080181735A1

    公开(公告)日：2008-07-31

    申请号：US11657519

    申请日：2007-01-25

    申请人： Hsien-Pei Wang

    发明人： Hsien-Pei Wang

    IPC分类号： B23B27/18

    CPC分类号： B23B51/0406 ,  B23B2222/28 ,  B23B2222/84 ,  B23B2240/11 ,  B23B2251/02 ,  B23B2260/114 ,  B23P15/28 ,  B23P15/32 ,  Y10T408/78

    摘要： A method for manufacturing drill cutters and structure thereof includes forming a base body by forging that has a shank and a barrel which has a plurality of wedging portions at an upper end and forming a barrel-type drill head through powder metallurgy that has a plurality of coupling elements at a lower end corresponding to the wedging portions. The drill head and the base body can be joined together to form a drill cutter which is wear-resisting and does not fracture easily.

    摘要翻译： 一种钻削刀具的制造方法及其结构包括通过锻造形成具有柄部和筒体的基体，所述柄部和筒体在上端具有多个楔入部，并且通过粉末冶金形成筒状钻头，所述粉末冶金具有多个 在对应于楔入部分的下端处的联接元件。 钻头和基体可以连接在一起以形成耐磨性并且不易破裂的钻刀。