Seco Tools Ab

Rikard Forsen

Magnus Oden

Naureen Ghafoor

Mats Johansson

Bjorn Alling

Igor Abrikossov

Mats Johansson-Joesaar

Hans Lind

Syed Muhammad Bilal

Ferenc Tasnadi

A coated cutting tool and a hard and wear resistant coating for a body include at least one metal based nitride layer. The layer is (ZrxCrl-x-y-zAlyMez)Na with 0.55&#x3c;x&#x3c;0.85, 0.05&#x3c;y&#x3c;0.45, 0&#x2264;z&#x3c;0.20, 0.95&#x3c;a&#x3c;1.10, and Me is one or more of the elements: Y, Ti, V, Nb, Ta, Mo, W, Mn or Si. The layer can have a thickness between 0.5 &#x3bc;m and 15 &#x3bc;m and be comprisied of a single cubic phase or a single hexagonal phase or a mixture thereof. In an exemplary embodiment, the layer is a cubic phase of a sodium chloride structure. The layer can be deposited using cathodic arc evaporation and is useful for metal cutting applications generating high temperatures.

Coated cutting tool and a method for coating the cutting tool

A cutting tool insert for machining by chip removal includes a body of a hard alloy of cemented carbide, cermet, ceramics, polycrystalline diamond or cubic boron nitride based materials onto which a hard and wear resistant coating is deposited by physical vapour deposition (PVD). The coating includes at least one layer of a NaCl-structured (TiAlCrMe)(CON) where Me is one or more of the elements Zr, Hf, V, Nb, Ta, Mo, W and/or Si, 0.10&#x3c;a&#x3c;0.60, b+d&#x3e;0.20, c&#x3e;0.05, 0&#x2266;d&#x3c;0.25, 0.75&#x3c;x&#x3c;1.05, 0&#x2266;y&#x3c;0.25 and 0&#x2266;z&#x2266;0.25 with a thickness between 0.5 and 10 &#x3bc;m. The layer has a columnar mictrostructure with an average columnar width of &#x3c;1 &#x3bc;m, a compressive stress level of &#x2212;6 GPa&#x3c;&#x3c3;&#x3c;&#x2212;0.5 GPa and a nanohardness &#x3e;25 GPa.

Coated cutting tool insert

Growing community of inventors

Linghem, Sweden

Rikard Forsen