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    • 4. 发明授权
    • MILLING TOOL
    • 铣削工具
    • EP1276580B1
    • 2007-12-12
    • EP01926281.5
    • 2001-04-25
    • Sandvik Intellectual Property AB
    • HANSSON, Lars-OlaPANTZAR, GöranSVENNINGSSON, Inge
    • B23C5/20
    • B23C5/006B23C5/109Y10T407/191Y10T407/1926
    • The invention relates to a milling tool of the type that comprises a body (1) rotatable around a geometrical centre axis and having a rotationally symmetrical envelope surface (4) along which at least one set of tangentially spaced-apart cutting members (5, 5', 5") is arranged, each one of which having a chip forming edge (8) formed adjacent to a flank surface (10), which edge extends between axially spaced-apart ends. Characteristic of the invention is that the flank surface (10) for at least one cutting member (5) of said set extends at a first clearance angle ( alpha ) in relation to a conceived tangent line (T) through the edge (8), and that the flank surface for the other cutting member or members of the set extend at a second clearance angle ( beta ), which is smaller than said first clearance angle ( alpha ). During milling, the cutting members (5', 5") having the reduced clearance angle ( beta ) will guarantee stability and freedom from vibration, while the cutting member (5) having the larger clearance angle ( alpha ) guarantees a good machining precision.
    • 本发明涉及一种铣削刀具,该铣削刀具包括可围绕几何中心轴旋转并具有旋转对称包络面(4)的主体(1),至少一组切向间隔开的切割构件(5,5 ,5“)中的每一个具有邻近于侧表面(10)形成的切屑形成边缘(8),所述边缘在轴向间隔开的端部之间延伸。本发明的特征在于,侧表面 (5)相对于通过所述边缘(8)的假想切线(T)以第一后角(α)延伸,并且所述另一切割构件(5)的后侧表面 或所述组的构件以小于所述第一间隙角α的第二间隙角β延伸。在铣削期间,具有减小的间隙角(β)的切削构件(5',5“)将保证 稳定性和无振动,而切割构件(5)h 更大的后角(α)保证了良好的加工精度。