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    • 6. 发明公开
    • SURFACE COATED CUTTING TOOL
    • OBERFLÄCHENBESCHICHTETESSCHNEIDEWERKZEUG
    • EP2708299A1
    • 2014-03-19
    • EP11859645.1
    • 2011-12-05
    • Sumitomo Electric Hardmetal Corp.
    • KANAOKA, HideakiOKADA, YoshioKOJIMA, ChikakoPASEUTH, AnongsackIWAI, ErikaMORIMOTO, Hiroyuki
    • B23B27/14B23B51/00B23C5/16B23P15/28B24C1/02
    • B23B27/00B23B27/146B23B27/148C23C16/0254C23C16/30C23C28/042C23C28/044C23C30/005Y10T407/27Y10T407/28Y10T428/265
    • A surface-coated cutting tool (10) excellent in adhesion strength between a base material (1) and a coating (2) and also excellent in wear resistance is provided. The surface-coated cutting tool (10) of the present invention is characterized in that: a region of 10 µm in a surface of the base material (1) from point a' to point b' has two to seven cracks with a width of not more than 200 nm, or two to ten pores are present per length of 10 µm in the surface of the base material (1) from point a' to point b' , where points a' and b' are points defined respectively by lines drawn perpendicularly from points a and b to the surface of the base material (1) where point a is a position located away from an edge ridgeline (5) toward a rake face (3) by distance La and point b is a position located away from the edge ridgeline (5) toward a flank face (4) by distance Lb; and the pore is a cavity with a diameter gradually decreasing toward an interface between the base material (1) and the coating (2), and the pore has a diameter in the interface of 0.08 to 3 µm.
    • 提供了在基材(1)和涂层(2)之间粘合强度优异且耐磨性优异的表面涂层切削工具(10)。 本发明的表面覆盖切割工具(10)的特征在于:从a'到b'点的基材(1)的表面上的10μm的区域具有2〜7个裂纹,宽度为 不超过200nm,或者,从a'点到b'点,在基体材料(1)的表面上每10μm长度存在2至10个孔,其中点a'和b'分别由线 从点a和b垂直绘制到基材(1)的表面,其中点a是远离边缘脊线(5)的位置朝着前刀面(3)移动距离La,点b是位于距离 从边缘棱线(5)朝向侧面(4)延伸距离Lb; 并且所述孔是直径朝向所述基材(1)和所述涂层(2)之间的界面逐渐减小的空腔,并且所述孔的界面直径为0.08〜3μm。