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US 7,067,191 B2Granted
Method to increase wear resistance of a tool or other machine component
AssigneeUnaxis Trading AG
InventorsVolker Derflinger, Hans Braendle, Christian Wohlrab
Life of this patent
Estimating the term…
Abstract
A layer system in particular for tools or machine components operated under insufficient lubrication or under dry operation conditions, is proposed, which system, starting from the base body, comprises a hard substance layer system, subsequently a metallic layer and finally a slide layer system, the last mentioned preferably made of Carbide, in particular of Tungstencarbide or Chromiumcarbide and dispersed Carbon.
Claims50
Tool or machine component, comprising:
- a base body made of metal or made of hard metal;
- viewed in a direction from the base body towards an outside and at least along a part of the base body's surface, a hard material layer system having, as an outermost layer, a hard material layer, directly followed by an intermediate layer, directly followed by a sliding layer system;
- wherein said hard material layer made of at least one material from the group of Nitrides, Carbides, Oxides, Carbonitrides, Oxinitrides, Oxicarbonitrides of at least one metal, and said intermediate layer is of said at least one metal.
Tool or machine component, comprising:
- a base body of a metal or of a hard metal, and
- viewed in a direction from said base body towards an outside and at least along a part of the base body's surface, a hard material layer system having, as an outermost layer, a hard material layer, directly followed by an intermediate layer, directly followed by a sliding layer system, wherein said hard material layer is made of at least one material selected from the group of Nitrides, Carbides, Oxides, Carbonitrides, Oxinitrides, Oxicarbonitrides of Chromium and said intermediate layer is made of Chromium.
Tool or machine component, comprising:
- a base body of a metal or of a hard metal, and
- viewed in a direction from the base body towards an outside and at least along a part of said base body's surface, a hard material layer system having, as an outermost layer, a hard material layer, directly followed by an intermediate layer, latter directly followed by a sliding layer system, wherein said hard material layer is made of at least one Nitride of one of the following materials TiAl, CrAl, Cr, and said intermediate layer is made of said at least one metal.
Dependencies are inferred from the claim text.