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    • 7. 发明公开
    • ROTARY CUTTING TOOL
    • Rotierendes Schneidwerkzeug
    • EP2065111A1
    • 2009-06-03
    • EP08711301.5
    • 2008-02-14
    • UNION TOOL CO.
    • MATSUNAGA, MakotoNAKAMURA, MunehiroTAKAHASHI, Shoichi
    • B23C5/10B23B51/02
    • B23C5/10B23C2210/282B23C2265/08Y10T407/1948Y10T407/1954Y10T408/9097
    • There is provided an exceptionally practical rotary cutting tool allowing the life of the tool to be prolonged. The rotary cutting tool has a plurality of helically shaped swarf discharge flutes (2) formed on a periphery of a tool body (1) from a leading end towards a trailing end, and a peripheral blade (4) formed on an intersecting ridgeline of a rake surface (3) of the swarf discharge flutes (2) and the peripheral surface of the tool body (1). A back taper part (B), on which an outside diameter (D1) of the peripheral blade (4) and an inside diameter (D2) of the tool body (1) gradually decrease from the leading end of the tool towards the trailing end, is provided to the leading end of the tool body (1).
    • 提供了一种非常实用的旋转切削刀具,可延长刀具的使用寿命。 所述旋转切削工具具有多个螺旋状的切屑排出槽(2),所述多个螺旋状的切屑排出槽(2)从前端向后端形成在工具主体(1)的周边上,以及周边刀片(4),其形成在 切屑排出槽(2)的前刀面(3)和工具主体(1)的周面。 其中外周刀片(4)的外径(D1)和工具主体(1)的内径(D2)从工具的前端逐渐减小到后端的后锥形部分(B) 被提供到工具主体(1)的前端。