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    CIRCULAR SAW BLADE
    1.
    发明公开
    CIRCULAR SAW BLADE 审中-公开

    公开(公告)号：EP4252947A3

    公开(公告)日：2023-10-18

    申请号：EP23186070.1

    申请日：2020-04-02

    申请人： Black & Decker, Inc.

    发明人： ELLISTON, Asif ,  HALL, Kenneth ,  LINCOLN, Graham E.

    IPC分类号： B23D61/12 ,  B27B33/08 ,  B23D61/04 ,  B23D61/02

    摘要： A circular saw blade includes a plurality of cutting teeth repeatedly alternating between a first set of cutting teeth and a second set of cutting teeth around the periphery of the saw blade. Each first set of cutting teeth includes at least two efficient cutting teeth, each second set of cutting teeth comprising at least one robust cutting tooth. Each first set of teeth and each second set of teeth are configured such that, if one tooth in the first set of teeth breaks, the chip load in the immediately following second set of teeth increases by less than approximately 45%.

    CIRCULAR BAND SAW BLADE MANUFACTURING METHOD AND MANUFACTURING METHOD AND APPARATUS
    4.
    发明公开
    CIRCULAR BAND SAW BLADE MANUFACTURING METHOD AND MANUFACTURING METHOD AND APPARATUS 审中-公开

    公开(公告)号：EP3804894A1

    公开(公告)日：2021-04-14

    申请号：EP19814179.8

    申请日：2019-06-03

    申请人： Amada Co., Ltd. ,  Amada Machinery Co., Ltd.

    发明人： MAEDA Kensaku

    IPC分类号： B23D63/12 ,  B23D61/12 ,  B23D65/00 ,  B23P15/28

    摘要： A ring forming step includes welding opposite ends of a band saw blade (1) including a body part (1a) having a band shape, and a tooth part (1b) including a plurality of teeth formed on one side part of the body part, to form a ring shape. A polishing step includes polishing an inner surface (14A), an outer surface (14B), and an end face (13) on a side opposite to the tooth part in the ring-shaped band saw blade (1E) subjected to the ring formation. A tip tooth tip forming step includes positioning, after the polishing step, the ring-shaped band saw blade subjected to the ring formation by use of one of the inner surface and the outer surface, and the end face as references, joining a cutting tip (15) to tooth tips of the plurality of teeth by welding, and polishing the joined cutting tip to form a tooth tip shape.

    BAND SAW BLADE
    7.
    发明公开
    BAND SAW BLADE 审中-公开

    公开(公告)号：EP3636372A1

    公开(公告)日：2020-04-15

    申请号：EP19200389.5

    申请日：2019-09-30

    申请人： Kapman AB

    发明人： Wallin, Patrik

    IPC分类号： B23D61/12

    摘要： A band saw blade (10) having a continuous band portion with a back side (11) and a toothed side (12) and with a working direction (WD), primarily for sawing isolation material of mineral wool, the blade (10) at its toothed side (12) having teeth (T 1 -Tn) in which each tooth (T n ) having a toothface (TF 1 -TF n ) and a toothback (TB 1 -TB n ) with respective angles α and β, and that tooth gullets (G 1 -G n ) are located between each tooth (T n ), wherein each tooth (T n ) is provided with a double tip of which one tip is a leading tip (LT n ) and of which the other is a trailing tip (TT n ) and between which tips of the double tip of each tooth there is a tip gullet (TG n ).

    SAW BLADE FOR A RECIPROCATING SAW
    9.
    发明公开
    SAW BLADE FOR A RECIPROCATING SAW 审中-公开

    公开(公告)号：EP3623092A1

    公开(公告)日：2020-03-18

    申请号：EP19196831.2

    申请日：2019-09-11

    申请人： Voestalpine Precision Strip GmbH

    发明人： MAXERA, Franz ,  LEEB, Bernhard ,  PRODINGER, Jakob

    IPC分类号： B23D61/12

    摘要： The invention concerns a blade (10) for a reciprocating saw, said blade (10) being made from at least a bimetallic sheet material and comprising a flat body portion (11) comprising a low-alloy steel material or a carbon steel material, a cutting edge portion (15) comprising a high-speed steel material provided with a plurality of teeth (16) arranged at a first edge of said flat body portion, a back edge portion (18) arranged at a second edge of said flat body portion opposite of said cutting edge portion, wherein said back edge portion (18) is provided with a non-cutting micro-structured surface (119).