Single crystal welding of directionally compacted materials

US9458552B2 · kind B2 · utility

Assignees

• Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V. · DE
• Siemens Aktiengesellschaft · DE

Inventors

• Nikolai Arjakine · Berlin, DE
• Georg Bostanjoglo · Berlin, DE
• Bernd Burbaum · Falkensee, DE
• Andres Gasser · Aachen, DE
• Torsten Jambor
• Torsten Jokisch · Neuenhagen bei Berlin, DE
• Stefanie Linnenbrink · Kreuzau, DE
• Selim Mokadem · Koblenzer Straße, DE
• Michael Ott · Wetter (Ruhr), DE
• Norbert Pirch · Aachen, DE
• Rolf Wilkenhöner · Berlin, DE

Key dates

• Filing date: Apr 13, 2012
• Grant date: Oct 4, 2016
• Expiry date: May 3, 2033

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F05D2300/607
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

A process for welding directionally solidified metallic materials is presented. Process parameters are targeted selected with respect to laser welding, advancement, laser power beam diameter and powder mass flow. The temperature gradient, which is fundamentally decisive for the single-crystal growth during laser cladding, may be set in a targeted manner.