Siemens Aktiengesellschaft

Fraunhofer-gesellschaft Zur Foerderung Der Angewandten Forschung E.v.

Frank Mentzel

Michael Ott

Bernd Burbaum

Georg Bostanjoglo

Norbert Pirch

Andres Gasser

Nikolai Arjakine

Stefanie Linnenbrink

Sebastian Piegert

Andre Mehlhorn

A method for generating, in layers, an application structure made of high heat resistant super alloys on a substrate is provided. A powdery construction material is melted by an energy beam at a working point, wherein the working point is guided across the substrate along a primary movement direction and thus swings transversely to the primary movement direction. The working point thereby swings from a first edge of a respective layer of the application structure to a second edge of the layer. In this way, a time interval passes between departure from a respective edge and a return to the respective edge directly following the departure, such that a melt bath on the respective edge solidifies into a paste-like zone during the time interval.

Laser build-up welding of high heat resistant super alloys by means of oscillating beam guidance

Applying material along parallel welding lines per welding layer, and changing a direction of extension of the welding tracks by 90&#xb0; for the next welding layer, is provided.

Build-up strategy for a crown base of a turbine blade, and turbine blade

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Aachen, Germany

Frank Mentzel