Sandvik Intellectual Property Ab

Seco Tools Ab

Lina Rogstrom

Magnus Oden

Lars Johnson

Mats Johansson

Lars Hultman

Mats Ahlgren

Marianne Collin

Naureen Ghafoor

Mats Johansson Joesaar

Robert Pilemalm

Greger Hakansson

The present disclosure relates to a coated cutting tool including a substrate and a coating disposed on the substrate, wherein the coating includes a layer of TiZrAlN, where 0&#x3c;x&#x2266;0.3, 0.2&#x2266;y&#x2266;0.8 and 0.1&#x2266;(1-x-y)&#x2266;0.7. The disclosure further relates to a method of producing such a coated cutting tool, and to a cutting insert forming a coated cutting tool.

Coated cutting tool and a method of producing a coated cutting tool

The present invention relates to a coated cutting tool with a coating comprising a multilayer structure consisting of alternating layers A and B forming the sequence A/B/A/B/A . . . or alternating layers A and B and an intermediate layer C between the alternating layers A and B forming the sequence A/C/B/C/A/C/B . . . . Layer A consists of ZrAlN and layer B consists of TiN. Layer C comprises one or more metal elements from each of layers A and B and is of different composition and structure than layers A and B. A method for forming the coated cutting tool is also provided. The method comprises heat treatment of the coated cutting tool prior to use.

Coated cutting tool and method of making the same

A cutting tool insert includes a body of cemented carbide, cermet, ceramics, high speed steel (HSS), polycrystalline diamond (PCD) or polycrystalline cubic boron nitride (PCBN), a hard and wear resistant coating is applied, grown by physical vapour deposition (PVD) such as cathodic are evaporation or magnetron sputtering. The coating includes at least one layer of (ZrAl)N with 0.05&#x3c;x&#x3c;0.30 with a thickness between 0.5 and 10 &#x3bc;m. The layer has a nanocrystalline columnar microstructure consisting of a single cubic phase or a mixture of hexagonal and cubic phases. The insert is particularly useful in metal cutting applications generating high temperatures with improved edge integrity.

Coated cutting tool for metal cutting applications generating high temperatures

Growing community of inventors

Linkoping, Sweden

Lina Rogstrom