ENDMILL
    6.
    发明公开
    ENDMILL 审中-公开

    公开(公告)号:EP2554309A4

    公开(公告)日:2018-03-28

    申请号:EP11762688

    申请日:2011-03-25

    发明人: AZEGAMI TAKAYUKI

    IPC分类号: B23C5/10

    摘要: Provided is an end mill wherein: the generation of burrs can be controlled according to the various machining conditions and/or to the board thicknesses of the various work pieces to be machined; and smooth machining work can be carried out, with good chip removal performance, and with a finished surface of excellent quality. In this end mill, an end mill body 1 rotatable on an axis O has a cutting edge section 3 which provides first peripheral cutting edges 4A which are handed and helically shaped around the axis O, and second peripheral cutting edges 4B with a linear shape extending straight in parallel to the axis O. Further, the first peripheral cutting edges 4A are right-handed helical and right hand teeth formed as a helical shape handed in the end mill rotational direction T from the rear side to the top side.