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    • 4. 发明公开
    • A MILLING TOOL, A CUTTING INSERT FOR MILLING TOOL AS WELL AS A SOLID MILLING TOOL
    • 铣削刀具,切削刀具铣削刀具和固体铣削刀具
    • EP1791671A1
    • 2007-06-06
    • EP05777837.5
    • 2005-09-02
    • Sandvik Intellectual Property AB
    • SVENNINGSSON, IngeLUNDBLAD, MikaelJOHANSSON, JanÅSTRÖM, MagnusÖHLUND, David
    • B23C5/20B23C5/18
    • B23C5/207B23C5/10B23C5/109B23C2200/125B23C2200/165B23C2210/0407B23C2210/0442B23C2210/084B23C2210/126Y10T407/1938Y10T407/1946Y10T407/1948Y10T407/23Y10T407/235Y10T407/245
    • The invention relates to a milling tool intended for chip-removing machining, comprising a basic body rotatable around a geometrical centre axis and a plurality of peripherically spaced-apart, detachable cutting inserts, which separately are securable in insert pockets adjacent to chip channels formed in the basic body, the individual cutting insert having at least one edge (19) formed between a chip surface on the top side of the cutting insert and a clearance surface along the periphery side of the cutting insert, the tool geometry being markedly positive so far that the individual insert pocket is arranged to secure the individual cutting insert in a position in which the chip surface is inclined in relation to the centre axis while forming a positive angle of inclination. Characteristic of the invention is the combination that the angle of inclination between the chip surface (17b) and the centre axis is within the range of 25-28°, that the cutting edge (19) cross section- wise has an arc-shape having a radius of curvature (ER) within the range of 5-20 μm, that the clearance surface of the cutting insert is formed with a clearance bevel (18a), which extends from the cutting edge (19) in the direction of the bottom side of the cutting insert and transforms into a main clearance portion (18b), that the clearance angle (Ϝ) of the clearance bevel (18a) is larger than 0°, but smaller than 3°, that the clearance angle (ω) of the main clearance portion (18b) is larger than the clearance angle (Ϝ) of the clearance bevel (18a), that the extension of the clearance bevel (18a) from the cutting edge (19) to the main clearance portion (18b) is within the range of 0,05-0,30 mm, that the chip surface is formed with a reinforcement bevel (17a), which extends from the cutting edge (19) in the direction of the centre of the cutting insert and transforms into a main chip portion (17b), the angle of inclination of the reinforcement bevel (17a) in relation to the centre axis being larger than -5°, but smaller than +5°, and that the extension of the reinforcement bevel (17a) from the cutting edge (19) to the main chip portion (17b) is within the range of 0,05-0, 15 mm. The invention also separately relates to a milling insert as well as a solid milling tool.
    • 5. 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。
    • 9. 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。