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    • 1. 发明公开
    • SCHAFTFRÄSER-VOLLWERKZEUG
    • MILLS完整的工具
    • EP3192604A1
    • 2017-07-19
    • EP17020015.8
    • 2017-01-12
    • Maier GmbHFraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
    • Maier, MichaelWestermann, Hans Henrik
    • B23C5/10
    • B23C5/10B23C2210/0407B23C2210/0492B23C2210/126
    • Die Erfindung betrifft ein Schaftfräser-Vollwerkzeug (1) mit wenigstens einer Hauptschneide (21, 22, 23, 24) mit einer Schneidkante (31, 32, 33, 34) auf seinem Umfang, wobei wenigstens eine Schneidkante (31, 32, 33, 34) in ihrer Abwicklung vom Umlauf-Zylinder einen Wendepunkt im stetigen Schneidkantenverlauf aufweist ab welchem ein zuvor kleiner werdender Drallwinkel (λ) relativ zur Drehachse (4) wieder zunimmt, wobei wenigstens eine Schneidkante (31, 32, 33, 34) in ihrer Abwicklung, dargestellt in einem xy-Koordinatensystem (x, y), nacheinander die Primzahlen X 1 =7, X 2 =13, X 3 =19 und X 4 =29 auf der x-Achse sowie die dazugehörigen Werte Y 1 =10, Y 2 =20, Y 3 =30, und Y 4 =40 auf der y-Achse in ihrem Schneidkantenverlauf einschließt.
    • 本发明涉及一种端铣刀完整的工具(1)与具有一个切削刃的至少一个主切削刃(21,22,23,24)(31,32,33,34)在其周边,至少一个切削刃(31,32,33, 34)在从循环气缸其处理已在连续的切削刃轮廓的转折点从该先前减小的螺旋角(λ)相对于在其卷绕的旋转轴线(4)再次增加,其中,至少一个切削刃(31,32,33,34) 在xy所示坐标上的x轴系统(X,Y),依次素数X1 = 7 X2 = 13,X3 = 19,和X4 = 29和相应的值Y1 = 10,Y2 = 20,Y3 = 30,并且Y4 = 40在其切割边缘的y轴上。
    • 5. 发明公开
    • RADIUS END MILL, AND CUTTING METHOD
    • SCHAFTFRÄSERUND SCHNEIDEVERFAHREN
    • EP3067136A4
    • 2017-04-05
    • EP14859816
    • 2014-11-08
    • MITSUBISHI HITACHI TOOL ENG LTD
    • BABA MAKOTO
    • B23C5/10B23C3/28
    • B23C5/10B23C3/28B23C3/30B23C5/1009B23C5/1018B23C2200/36B23C2210/08B23C2210/084B23C2210/126B23C2210/54B23C2222/28
    • [Problem] To ensure obtaining highly accurate finishing surface roughness on a work material simultaneous with ensuring highly efficient cutting work. [Solution] The present invention includes a plurality of end cutting edges 3 arrayed around a central axis O and a plurality of arc-shaped radius end cutting edges 6 continuous with the end cutting edges 3 on an outer peripheral side in a radial direction. The end cutting edge 3 is divided into an inner peripheral side end cutting edge 4 and an outer peripheral side end cutting edge 5 in a radial direction. A lowest point Pb of the radius end cutting edge 6 during cutting is positioned in a section from a boundary P2 between the outer peripheral side end cutting edge 5 and the radius end cutting edge 6 to a boundary P4 between the radius end cutting edge 6 and the peripheral cutting edge 7. Second surfaces 40 of the plurality of inner peripheral side end cutting edges 4 are coupled at a part close to the central axis O. A region of coupled second surfaces 40 is continuous from a region including the central axis O to outer peripheral sides of respective inner peripheral side end cutting edges 4 in a radial direction in a strip shape. A width of the strip-shaped region gradually enlarges from the central axis O side to an outer peripheral side in a radial direction.
    • [问题]确保在确保高效切割工作的同时获得高精度的精加工表面粗糙度。 [解决方案]本发明包括沿中心轴线O排列的多个端部切削刃3和在径向的外周侧上与端部切削刃3连续的多个弧形半径端部切削刃6。 末端切削刃3在径向上分为内周侧端切削刃4和外周侧切削刃5。 在切削过程中半径端切削刃6的最低点Pb位于从外周侧端切削刃5与半径端切削刃6之间的边界P2到半径端切削刃6和 多个内周侧端切削刃4的第二表面40在接近中心轴线O的部分处连接。耦合的第二表面40的区域从包括中心轴线O的区域连续到 各内周侧端切削刃4的外周侧呈带状的径向。 带状区域的宽度从中心轴线O侧向径向的外周侧逐渐扩大。
    • 7. 发明公开
    • RADIUS END MILL AND CUTTING METHOD
    • 半径端铣刀和切削方法
    • EP1908543A1
    • 2008-04-09
    • EP06781577.9
    • 2006-07-25
    • Mitsubishi Materials Corporation
    • AOKI, Taiitsu, c/o MITSUBISHI MAT. KOBE TOOLS CORPABE, Kazumasa., c/o MITSUBISHI MAT.KOBE TOOLS CORP
    • B23C5/10
    • B23C5/10B23C2210/0407B23C2210/126B23C2210/54Y10T407/1948Y10T407/1966Y10T407/23Y10T409/303752
    • The radius end mill includes: an end mill body which is rotatable around an axis; peripheral cutting edges each formed at a peripheral portion of the end mill body located close to a distal end thereof; bottom cutting edges each formed at a distal end surface of the end mill body; and corner cutting edges each formed between the peripheral cutting edge and the bottom cutting edge. Each of the corner cutting edge is formed so as to curve inwardly in a radial direction of the end mill body as the corner cutting edge approaches the distal end of the end mill body from the terminal end thereof and so as to curve toward the terminal end of the end mill body after the corner cutting edge has reached the distal end of the end mill body. Each of the bottom cutting edge is formed so as to communicate with the corner cutting edge and so as to be close to the terminal end of the end mill body as the bottom cutting edge approaches inwardly in the radial direction. A value of a rake angle α of the corner cutting edge with respect to the axis is greater than or equal to -10° and is less than or equal to 10°. A rake surface of the corner cutting edge and a rake surface of the bottom cutting edge each are formed like a plane, and the rake surface of the corner cutting edge is formed so as to be flush with the rake surface of the bottom cutting edge. When an external diameter of the end mill body is D, a value of a curvature radius R of the corner cutting edge is greater than or equal to 0.1 x D and is less than or equal to 0.3 x D.
    • 所述半径端铣刀包括:可围绕轴线旋转的端铣刀主体; 各自形成在端铣刀主体的靠近其远端的周边部分处的外围切削刃; 各自形成在端铣刀主体的远端表面处的底部切削刃; 以及分别形成在外围切削刃和底部切削刃之间的角部切削刃。 每个角切削刃被形成为随着角切削刃从其终端接近立铣刀主体的远端并且朝向终端铣刀主体的末端弯曲而在立铣刀主体的径向方向上向内弯曲 在角切削刃到达立铣刀主体的远端之后立铣刀主体的端部。 每个底切削刃被形成为与切削刃连通并且随着底切削刃在径向上向内接近而靠近立铣刀主体的末端。 角切削刃相对于轴线的前角α的值大于或等于-10°且小于或等于10°。 角切削刃的前刀面和下切削刃的前刀面均形成为平面,并且角切削刃的前刀面形成为与下切削刃的前刀面齐平。 当端铣刀体的外径为D时,角切削刃的曲率半径R的值大于或等于0.1×D且小于或等于0.3×D。