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    GRINDING METHOD AND ROTARY CUTTING TOOL
    5.
    发明公开
    GRINDING METHOD AND ROTARY CUTTING TOOL 有权
    SCHERIFVERFAHREN UND DREHSCHNEIDWERKZEUG

    公开(公告)号：EP2070650A1

    公开(公告)日：2009-06-17

    申请号：EP08711302.3

    申请日：2008-02-14

    申请人： UNION TOOL CO.

    发明人： KOSHIO, Jun-Ichi ,  TAKAHASHI, Shoichi

    IPC分类号： B24B3/00 ,  B23C5/10

    CPC分类号： B23C5/10 ,  B23C2210/0407 ,  B24B3/021 ,  B24B3/26

    摘要： There is provided an exceptionally practical rotary cutting tool, wherein, when a grindstone is used to grind and form a tool-center side of a leading end flank face, other bottom blades are not ground, and roughness of a cut surface can be reduced. A method for grinding and forming a leading end flank face (4) is provided; wherein a grindstone (6) is used and a leading end flank face (4) is ground and formed on a leading end surface of a tool body (1) of a rotary cutting tool having three or more blades, several helically shaped swarf discharge flutes (2) are formed on a periphery of the tool body (1) from a leading end of the tool toward a trailing end, and a bottom blade (5) is provided on each intersecting ridgeline of leading end flank faces (4) of the tool body (1) and rake faces (3) of the swarf discharge flutes (2). When a tool-center side of one of the leading end flank faces (4) is ground and formed over a predetermined range, a direction (A) in which the grindstone (6) rotates is set at an intersecting angle (α) of less than 90° with respect to one of the bottom blades (5) associated with the one leading end flank face (4) to be ground and formed, and grinding is performed by the grindstone (6) with no interference occurring with any of the bottom blades (5) other than the one bottom blade (5).

    摘要翻译： 提供了一种特别实用的旋转切削工具，其中当使用磨石研磨和形成前端侧面的工具中心侧时，其它底部刀片不被磨削，并且切割表面的粗糙度可以减小。 提供了一种用于研磨和形成前端侧面（4）的方法， 其特征在于，使用磨石（6），将前端侧面（4）研磨并形成在具有三个以上叶片的旋转切削工具的工具主体（1）的前端面上，形成有多个螺旋状的切屑排出槽 （2）从所述工具的前端朝向后端形成在所述工具主体（1）的周边上，并且在所述工具主体的前端侧面（4）的相交的棱线上设置有底部刀片（5） 工具主体（1）和切屑排出槽（2）的前刀面（3）。 当一个前端侧面（4）中的一个工具中心侧被磨削并形成在预定范围内时，磨石（6）旋转的方向（A）设定为较小的交叉角（±） 相对于与待研磨和形成的一个前端侧面（4）相关联的底部叶片（5）中的一个相对于90°，​​并且通过磨石（6）进行研磨，而不会发生与任何底部 除了一个底部叶片（5）之外的叶片（5）。

    BALL END MILL
    6.
    发明公开
    BALL END MILL 有权
    球头铣刀

    公开(公告)号：EP2184125A1

    公开(公告)日：2010-05-12

    申请号：EP08720732.0

    申请日：2008-02-14

    申请人： UNION TOOL CO.

    发明人： KOSHIO, Jun-Ichi ,  TAKAHASHI, Shoichi

    IPC分类号： B23C5/10

    CPC分类号： B23C5/1009 ,  B23C2210/54 ,  B23C2210/64

    摘要： To provide a ball end mill of highly exceptional utility, in which the service life can be extended and the machined surface roughness can be improved. There is provided a ball end mill in which a plurality of spiral-shaped chip discharge grooves (12) are formed on the outer circumference of a tool body (11) from the distal end toward the proximal end of the tool, and a ball cutting edge (15) is provided respectively at an intersection ridge line of a rake face of the chip discharge grooves (12) and a distal end flank (14) of the tool body (11), the ball end mill characterized in having two or more ball cutting edges (15) at a distal end, and one groove (20) that is substantially V-shaped or U-shaped in cross-section, and that extends outwardly from the center of rotation (0') of the tool, being provided between respective ball cutting edges (15) at the distal end of the tool.

    摘要翻译： 为了提供非常特殊用途的球头立铣刀，可以延长使用寿命并改善加工表面粗糙度。 提供了一种球头立铣刀，其中多个螺旋状排屑槽（12）从工具的远端朝向近端形成在工具主体（11）的外周上，并且球切割 在所述切屑排出槽（12）的前刀面与所述工具主体（11）的前端侧面（14）的交叉棱线处分别设有刃口（15），所述球头刃口具有两个以上 在远端的球切削刃15和一个横截面基本上为V形或U形并且从工具的旋转中心0'向外延伸的沟槽20， 设置在工具远端处的相应球切割边缘（15）之间。

    ROTARY CUTTING TOOL
    7.
    发明公开
    ROTARY CUTTING TOOL 有权
    DREHSCHNEIDWERKZEUG

    公开(公告)号：EP2020270A1

    公开(公告)日：2009-02-04

    申请号：EP06796630.9

    申请日：2006-08-22

    申请人： UNION TOOL CO.

    发明人： SATO, Akira ,  TAKAHASHI, Shoichi ,  KOSHIO, Jun-Ichi

    IPC分类号： B23C5/10

    CPC分类号： B23C5/10 ,  B23B51/02 ,  B23B2251/14 ,  B23B2251/18 ,  B23B2270/30 ,  B23C2210/086 ,  B23C2210/54 ,  B23C2230/04 ,  Y10T407/1948 ,  Y10T407/245

    摘要： To provide a highly practical rotary cutting tool with which chips can be satisfactorily removed even during longitudinal feeding, and the accumulation of chips can be minimized. A rotary cutting tool is provided, wherein a large number of helical chip-removing grooves (2) are provided in an external periphery of a distal end of a substantially cylindrical tool main body (1), and end cutting edges are provided at the lines of intersection between the cutting faces (3) of the chip-removing grooves (2) and the distal-end flanks of the tool main body (1); and at least one of the end cutting edges is configured so that the part of the cutting edge near the external periphery of the tool is recessed in the axial direction of the tool main body (1), forming a non-cutting part (22).

    摘要翻译： 为了提供一种高度实用的旋转切削工具，即使在纵向进给期间，也可以令人满意地去除切屑，并且可以最大限度地减少切屑的积聚。 提供了一种旋转切削工具，其中在大致圆筒形的工具主体（1）的远端的外周设置有大量的螺旋形排屑槽（2），并且在切割线 切屑槽（2）的切割面（3）与刀具主体（1）的前端侧面之间的交点; 并且所述端部切削刃中的至少一个构造成使得所述刀具的外周附近的所述切削刃的一部分在所述刀具主体（1）的轴向上凹陷，形成切削部（22） 。