Drilling tool
    1.
    发明授权

    公开(公告)号:US10661356B2

    公开(公告)日:2020-05-26

    申请号:US15904786

    申请日:2018-02-26

    Inventor: Jurgen Schwagerl

    Abstract: A drilling tool includes at least two chip flutes and a chisel edge with a thinned region. The thinned region merges continuously into the chip flutes in such a way that the thinned region forms the end of the respective chip flute in the region of the chisel edge.

    Rotary cutting tool, such as a drill, comprising an exchangeable cutting insert, and an exchangeable cutting insert
    4.
    发明授权
    Rotary cutting tool, such as a drill, comprising an exchangeable cutting insert, and an exchangeable cutting insert 有权
    旋转切削工具,例如钻头,其包括可更换的切削刀片和可更换的切削刀片

    公开(公告)号:US08807888B2

    公开(公告)日:2014-08-19

    申请号:US13756990

    申请日:2013-02-01

    Abstract: A tool shank for use with a cutting insert in a rotary cutting tool includes a body having, and adapted to be rotated about, a central longitudinal tool axis, the body having a tip portion structured to receive at least a portion of the cutting insert therein. The shank also includes a pair of chip flutes formed in the body and a pair of recesses, each recess bordering a respective chip flute. Each recess includes a rim portion extending perpendicular to the tool axis and a bearing surface extending at an incline relative to the tool axis. Each rim portion is adapted to engage a corresponding surface on the cutting insert. Each bearing surface is adapted to engage a corresponding bearing surface on the cutting insert in a manner such that the cutting insert is pulled against the body when the rotary cutting tool is rotated about the tool axis.

    Abstract translation: 用于与旋转切割工具中的切削刀片一起使用的工具柄包括具有中心纵向工具轴线并适于围绕中心纵向工具轴线旋转的主体,该主体具有构造成在其中容纳至少一部分切削刀片的尖端部分 。 柄还包括形成在主体中的一对芯片槽纹和一对凹槽,每个凹槽与相应的芯片槽纹相邻。 每个凹部包括垂直于工具轴线延伸的边缘部分和相对于工具轴线以倾斜方式延伸的支承表面。 每个边缘部分适于与切削刀片上的对应表面接合。 每个支承表面适于以切割插入件相对于切削刀片上的对应的支承表面接合,使得当旋转切削工具围绕刀具轴线旋转时,切削刀片被拉向主体。

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