Widia Gmbh

Kennametal Inc.

Fried Krupp

Kennametal Widia Produktions Gmbh & Co Kg

Krupp Widia Gmbh

Kennametal Widia Gmbh & Co. Kg

Hendrikus Van Den Berg

Volkmar Sottke

Hartmut Westphal

Ralf Tabersky

Udo Konig

Yixiong Liu

Mark S Greenfield

Norbert Reiter

Udo K&ouml;nig

Josef Blum

Doris Lenk

Peter Rudolf Leicht

Zhigang Ban

Klaus Dreyer

Ingolf Endler

Albrecht Leonhardt

Udo K{overscore (o)}nig

Udo Ko/ Nig

In one aspect, cutting tools are described having coatings adhered thereto. A coated cutting tool, in some embodiments, comprises a substrate and a coating adhered to the substrate, the coating comprising at least one composite layer deposited by chemical vapor deposition comprising an aluminum oxynitride phase and a metal oxide phase, the metal oxide phase including at least one oxide of a metallic element selected from Group IVB of the Periodic Table.

Coatings for cutting tools

A method for making a coated article wherein the method includes the following steps: providing a substrate; and depositing an aluminum oxynitride coating layer from a gaseous mixture. The gaseous mixture contains the following components: 30.0-65.0 volume percent nitrogen, 0.7-1.3 volume percent aluminum tri-chloride; 1.0-2.0 volume percent ammonia, 0.1-1.5 carbon dioxide, 1.5-4.5 volume percent hydrogen chloride, optional components of carbon monoxide and/or argon, and hydrogen as the balance.

Method of making aluminum oxynitride coated article

The invention relates to a body which is coated with hard material and has a plurality of layers applied by means of CVD, wherein the outer layer comprises TiAlN, TiAlC and/or TiAlCN where 0.65&#x2266;x&#x2266;0.9, preferably 0.7&#x2266;x&#x2266;0.9, and this outer layer has compressive stresses in the range from 100 to 1100 MPa, preferably from 400 to 800 MPa, and a TiCN or AlOlayer is arranged under this outer layer.

Body coated with hard material

The invention relates to a body which is coated with hard material and has a plurality of layers applied by means of CVD, in which an AlOlayer is arranged as outer layer on a TiAlN layer and/or TiAlC layer and/or TiAlCN layer.

The invention relates to a method for producing a coated substrate body by chemical vapor deposition at least on one layer made of a carbonitride of a metal of IVa-Vla-groups of the periodic table, wherein a monocyclic hydrocarbon is used in the gas atmosphere during the deposition, in addition to a nitrile. According to the invention, the thus produced coated substrate body has a high degree of hardness and is used, preferably, in cutting operations where the cutting speeds are &#x2267;250 m/min.

Method for producing a coated substrate body, substrate body comprising a coating and use of the coated substrate body

The invention relates to a tool, especially a cutting tool, comprising a substrate member onto which at least one layer is deposited by means of CVD, and a method for the chemical vapor deposition of a two-phase layer on a sintered part. According to the invention, the single deposited layer or at least one of the layers is provided with a TiCN phase, TiOCN phase, TiOC phase, or TiC phase and an additional phase consisting of ZrOand/or HfO. CHCN, CHN, or CHis used in the gas atmosphere for producing such a layer in addition to TiCl, HfCl, and/or ZrCland CO, the remainder being composed of Hand/or Ar.

Tool and method for the chemical vapor deposition of a two-phase layer on a substrate member

A composite material has a base substrate body with first and second coatings. Each coating is formed by a multiphase layer of titanium oxide and at least two oxides from the group of aluminum, zirconium, and hafnium oxide and a second single-phase layer on the first layer consisting of only one oxide of aluminum, zirconium, and hafnium.

Composite material

The invention relates to a tool, especially a cutting insert for cutting metallic materials, which consist of a hard metal, cermet ceramics or steel base, especially of a high speed steel base, and at least one layer deposited thereon. The single layer, or in the case of several layers the outer layer or the layer underneath the outer layer, contains molybdenum sulfide. The aim of the invention is to improve the resistance to wear of the friction-reducing, molybdenum sulfide containing layer even at high pressures. To this end, the molybdenum sulfide containing layer consists of an alternating sequence of two layer that are different from one another. The first layer contains 51 to 100% by weight of metallic molybdenum and the second layer contains 21 to 100% by weight of MoS which substantially consists of hexagonal crystals that are at least substantially oriented in a plane parallel to the tool surface.

Tool with a molybdenum sulfide containing coating and method for its production

The invention pertains to a processing insert comprised of a body with a hard metal or ceramic substrate and with a multilayer coating and the manufacture of same. In order to have a highly fracture-tough insert with a relatively thick coating, it is suggested that an external layer (protective layer) be applied according to the CVD process, said layer being either a monophase or multiphase layer of Zr-based or Hf-based carbide nitride or carbonitride, and presenting internal compressive stresses. The layer(s) underlying the external layer, also applied according to the CVD process, also present(s), without any exception, internal compressive stresses, while at least one of them, maybe the only one laying under the protective layer is made of TiN, TiC and/or TiCN. The coating is applied according to a continuous CVD process at temperatures of 900&deg; C. to 1100&deg; C. and involves a specific modification of the gas compounds.

Processing insert, and production of same

Disclosed are a composite body and the production and the use thereof. It consists of a substrate body with a single- or multilayer coating, containing either Ti, Zr, Hf, V, Nb carbides, nitrides, carbonitrides and/or Ta and/or Al,O,or ZrO,. In order to improve the characteristics of wear from chip removal or another form of abrasion, the invention suggests that a layer of Zr, Hf, V, Nb, Ta or Cr carbonitride be precipitated either directly upon a layer of Al,O,&mdash; or ZrO,&mdash; or upon a thin intermediate layer of ZrC or ZrN up to 0,5 &mgr;m, or upon a TiN layer up to 0.1 &mgr;m, or indirectly upon a layer of Al,O,&mdash; or ZrO,&mdash;.

Growing community of inventors

Venlo-Blerick, Netherlands

Hendrikus Van Den Berg