COATED CUTTING TOOL

The invention relates to a coated cutting tool consisting of a substrate and a multi-layer wear-resistant hard coating, the layers of which are deposited by chemical vapor deposition (CVD) and which comprise: a TiCN layer, the TiCN layer has a multi-sublayer structure of alternating C-type and N-type sublayers and an integral fibrous texture characterized by a texture coefficient TC (422) in the range of 3.0 to 5.5; an oxygen-containing Ti or Ti + Al compound binding layer; and a layer of alpha-Al2O3 over the binding layer, the layer of alpha-Al2O3 having at least one layer having a texture coefficient TC (0012) gt; and 5 is a characteristic integral fiber texture. 本发明涉及一种由基体和多层耐磨硬质涂层组成的经涂覆的切削工具及其制造方法，所述硬质涂层的层通过化学气相沉积(CVD)来沉积并且包含：TiCN层，所述TiCN层具有交替的C型和N型子层的多子层结构以及以织构系数TC(422)在3.0至5.5范围内为特征的整体纤维织构；含氧的Ti或Ti+Al化合物结合层；以及在所述结合层上方的α-Al2O3层，所述α-Al2O3层具有以织构系数TC(0012)>5为特征的整体纤维织构。