Rolls-Royce Deutschland Ltd & Co. Kg

Rolls-Royce Corporation

Claudia Berkenhoff

Daniel Clark

Thomas Haubold

Claus T Haubold

In a method for beam welding on components with a laser beam or electron beam generated by a beam source, the heat treatment of the welded component required to remove stresses is integrated into the welding process. In a work cycle combined with the welding process, a regulated heat supply to a selected region takes place, according to its residual heat resulting from the welding process and the predicted stresses in that region, using the residual heat remaining from the welding process following the welding process from the same or other beam source(s). The welding region is cooled in a controlled manner, so that welded components which are likely to be subject to high stress in use, provided for example for a aircraft engine, can be made available without inherent stresses and with the desired microstructure in a single&#x2014;combined&#x2014;work step.

Method for beam welding on components

With a method for the repair of compressor rotors designed in blisk technology the damaged stage is severed from the rotor, and a new blisk is joined to the rotor by electron-beam welding. For stress relieving the rotor is subjected to local thermal treatment by means of a current produced in the weld area by electro-magnetic induction.

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Wehrheim, Germany

Claudia Berkenhoff