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    • 45. 发明公开
    • Hard covering film for cutting tool
    • 硬质涂层刀具
    • EP2031090A3
    • 2010-08-04
    • EP08014911.5
    • 2008-08-22
    • UNION TOOL CO.
    • Ohori, TetsutaroSato, Akira
    • C23C28/00C23C28/04B23B27/14C23C30/00
    • C23C28/044C23C28/42C23C30/005
    • It is an object of the present invention to provide a hard covering film for a cutting tool which can improve the wear resistance beyond that of a conventional AlCrN film. According to the present invention, there is provided a hard covering film for a cutting tool formed on a cutting tool substrate, characterized in that: the hard covering film comprises a first multi-layer covering film layer formed by alternatingly layering two or more layers each of a first covering film layer and a second covering film layer; the first covering film layers have metal and semi-metal components that are expressed (in terms of at%) by Al( 100-x-y-z )Cr (x) V (y) B (z) (where 20 ≤ x ≤ 40, 2 ≤ y ≤ 15, and 5 ≤ z ≤ 15), have N as a non-metallic element, and have unavoidable impurities; the second covering film layers have metal and semi-metal components that are expressed (in terms of at%) by Al (100-u-v-w) Cr (u) V (v) B (w) (where 20 ≤ u ≤ 40, 0 ≤ v ≤ 5, 0 ≤ w ≤ 5), have N as a non-metallic element, and have unavoidable impurities; the relationship between y and v such that y ≥ v is satisfied; and the relationship between z and w such that z - 5 ≥ w is satisfied.
    • 47. 发明公开
    • BALL END MILL
    • 球头铣刀
    • EP2184125A1
    • 2010-05-12
    • EP08720732.0
    • 2008-02-14
    • UNION TOOL CO.
    • KOSHIO, Jun-IchiTAKAHASHI, Shoichi
    • B23C5/10
    • B23C5/1009B23C2210/54B23C2210/64
    • 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.
    • 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。
    • 48. 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。
    • 49. 发明公开
    • Drilling tool
    • Bohrwerkzeug
    • EP2058073A1
    • 2009-05-13
    • EP08019527.4
    • 2008-11-07
    • UNION TOOL CO.
    • Hoshi, YukiyoshiTsuzaka, HideoTorigoe, Katsuaki
    • B23B51/02
    • B23B51/02B23B2228/36B23B2251/046B23B2251/404B23B2251/426H05K3/0047
    • To provide a far more practical drilling tool that is capable of drilling holes having good hole position accuracy and hole wall roughness using a small-diameter drill of 0.4 mm or less. A drilling tool in which helical chip-evacuating flutes (2) are formed in the outer circumference of a tool main body (1), wherein the chip-evacuating flutes (2) have a first helical region (3) with a first helix angle α 1 and a second helical region (4) with a second helix angle α 2 greater than the first helix angle α 1 , being provided on the tool base side of the first helical region (3); the tool main body 1 has a first taper region (6) with a first web taper and a second taper region (7) with a second web taper smaller than the first web taper, being provided on the tool base side of the first taper region (6); and a portion (8) where the first taper region (6) and the second taper region (7) are connected in a row is located more toward the tool base side than the portion (5) where the first helical region (3) and the second helical region (4) are connected in a row.
    • 为了提供一种更实用的钻孔工具,该钻具能够使用0.4mm或更小的小直径钻头钻孔,孔洞孔位精度和孔壁粗糙度。 一种在工具主体(1)的外圆周上形成有螺旋形排屑槽(2)的钻孔工具,其中排屑槽(2)具有第一螺旋区域(3),第一螺旋区域(3)具有第一螺旋角 设置在第一螺旋区域(3)的工具基座侧上,具有大于第一螺旋角度±1的第二螺旋角度±2的第二螺旋区域(4)。 工具主体1具有第一锥形区域的第一锥形区域(6)和具有小于第一腹板锥形的第二腹板锥形的第二锥形区域(7),设置在第一锥形区域的工具基部侧 (6); 并且第一锥形区域(6)和第二锥形区域(7)成行连接的部分(8)比第一螺旋区域(3)和(5)的部分(5)更靠近工具基座侧, 第二螺旋区域(4)连续连接。
    • 50. 发明公开
    • ROTARY CUTTING TOOL
    • DREHSCHNEIDWERKZEUG
    • EP2020270A1
    • 2009-02-04
    • EP06796630.9
    • 2006-08-22
    • UNION TOOL CO.
    • SATO, AkiraTAKAHASHI, ShoichiKOSHIO, Jun-Ichi
    • B23C5/10
    • B23C5/10B23B51/02B23B2251/14B23B2251/18B23B2270/30B23C2210/086B23C2210/54B23C2230/04Y10T407/1948Y10T407/245
    • 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).
    • 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) 。