Sandvik Intellectual Property Ab

Sandvik Intellectual Property Aktiebolag

Seco Tools Ab

Marianne Collin

Susanne Norgren

Lars Hultman

Ingrid Reineck

Hans Högberg

Mathias Tillman

David Huy Trinh

Mats Johansson

Torbjörn Selinder

Magnus Oden

Lars Johnson

Håkan Engström

Lina Rogstrom

Greger Hakansson

Håkan Engstrōm

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

A cutting tool includes a substrate on which at least on the functioning parts of the surface thereof a thin, adherent, hard and wear resistant coating is applied, wherein the coating includes a laminated multilayer of alternating PVD or PECVD metal oxide layers, MeX+MeX+MeX+MeX . . . , where at least one of MeX and MeX is a metal oxide+metal oxide nano-composite layer composed of two components with different composition and different structure which components include a single phase oxide of one metal element or a solid solution of two or more metal oxides, wherein the layers MeX and MeX are different in composition or structure and have individual layer thicknesses larger than about 0.4 nm but smaller than about 50 nm and where said laminated multilayer layer has a total thickness of between about 0.2 and about 20 &#x3bc;m.

Coated cutting tool

A cutting tool includes a substrate on which at least on the functioning parts of the surface thereof a thin, adherent, hard and wear resistant coating is applied, wherein the coating includes a laminated multilayer of alternating PVD or PECVD metal oxide layers, MeX+MeX+MeX+MeX . . . , where at least one of MeX and MeX is a metal oxide+metal oxide nano-composite layer composed of two components, wherein the layers MeX and MeX are different in composition or structure, the laminated multilayer layer has a compositional gradient, with regards to a concentration, in a direction from an outer surface of the coating towards the substrate, the gradient being such that a difference between an average concentration of an outermost portion of the multilayer and an average concentration of an innermost portion of the multilayer is at least about 5 at-% in absolute units.

The present invention relates to cutting tool insert for metal machining on which at least on the functioning parts of the surface thereof a thin, adherent, hard and wear resistant coating is applied. The coating comprises a metal oxide/oxide composite layer consisting of two components with a grain size of from about 1 to about 100 nm. The oxide layer is under a compressive stress.

Coated insert

A cemented carbide tool comprising hard constituents in a binder phase of Co and/or Ni and at least one surface portion and an interior portion in which surface portion the grain size is smaller than in the interior portion is disclosed. The surface portion with the fine grain size has a lower binder phase content than the interior portion. A method to form the cemented carbide cutting tool is also disclosed.

Cemented carbide tool and method of making the same

A cemented carbide cutting tool insert/button for mining and construction comprising hard constituents in a binder phase of Co and/or Ni and at least one surface portion and an interior portion in which surface portion the grain size is smaller than in the interior portion is disclosed. The surface portion with the smaller grain size has a lower binder phase content than the interior portion. A method to form the cemented carbide cutting tool insert/button is also disclosed.

Growing community of inventors

Älvsjö, Sweden

Marianne Collin