Schaeffler Technologies Ag & Co .kg

Klaus Feldner

Oliver Witter

Serge Kursawe

Stefan Dupke

Holger Pätzold

Frank Schlerege

A method for producing a reduced friction sliding surface on a machine element includes applying a coating comprising amorphous carbon to a surface of the machine element and locally heating the coating with a laser. The coating is heated to a temperature below an evaporation temperature of the coating to achieve a local volumetric increase in the coating and a local increase in a layer thickness of the coating. A surface structure of the coating includes a multiplicity of elevations resulting from a local phase transformation of the coating from amorphous carbon into graphite due to the locally heating.

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Zirndorf, Germany

Klaus Feldner