Method for welding workpieces made of highly heat-resistant superalloys, including a particular mass feed rate of the welding filler material

US9035213B2 · kind B2 · utility

Assignees

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

Inventors

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

Key dates

• Filing date: Nov 10, 2010
• Grant date: May 19, 2015
• Expiry date: Jul 11, 2031

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F05B2230/80
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

A welding method for welding workpieces made of highly heat-resistant superalloys is provided. The method includes generating a heat input zone on the workpiece surface by means of a heat source, feeding welding filler material into the heat input zone by means of a feeding device, and generating a relative motion between the heat source and the feeding device on one hand and the workpiece surface on the other hand by means of a conveying device. Furthermore, according to the welding method, the mass feed rate is ≦350 mg/min.