Process for producing a hard-material-coated component

US6869334B1 · kind B1 · utility

Assignee

• Cemecon-Ceramic Metal Coatings-Dr. Ing. Antonius Leyendecker GmbH · DE

Inventors

• Antonius Leyendecker · Herzogenrath, DE
• Hans-Gerd Fuss · Herzogenrath, DE
• Rainer Wenke · Aachen, DE
• Georg Erkens · Aachen, DE
• Stefan Esser · Aachen, DE
• Ingo Künzel · Aachen, DE

Key dates

• Filing date: May 29, 2000
• Grant date: Mar 22, 2005
• Expiry date: Mar 14, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C23C14/58
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

The invention relates to a process for producing a hard-material-coated component, comprising the following steps: application of a layer of hard material to the component in a PVD coating unit; and structural further processing of the outer surface of the layer of hard material, and to a component produced using the process. Particularly in the case of thick coatings or coatings with a columnar structure, such processes have a problem producing a sufficiently smooth surface on the coating. The problem is solved by the fact that for the structural further processing, the surface of the layer is blasted in a blasting device in order to improve this surface, an inorganic blasting agent with a grain size in the range from 1 μm to 100 μm and a sharp-edged grain shape being used.