Mtu Aero Engines Gmbh

Mtu Motoren-und Turbinen-union Munchen Gmbh

Mtu Aero Engines Ag

Bernd Stimper

Erwin Bayer

Karl-Hermann Richter

Reinhold Meier

Wolfgang Becker

Thilo Schmitt

Michael Velten

Dagobert Göpfert

A processing area of a structural component, such as a gas turbine component, is heated by irradiation with several laser sources prior to and/or during and/or after carrying out a processing such as a deposit welding or machining of the component on the processing area. For the heating, each laser source directs a respective energy beam onto the processing area, which respectively produces an energy spot on the processing area. The respective positions of the energy spots are static or quasi-static on the processing area. The energy spots jointly heat the processing area.

Method for heating components

A repair process for blades of turboengines damaged in the head or edge regions in which the damaged regions are first separated to leave an undamaged blade stump with an exposed, repair surface. The repair surface of the blade stump is prepared for butt welding and a repair plate of constant thickness which exceeds the maximum profile height of the blade by more than 50% is provided with a front surface adapted to the repair surface. This front surface of the repair plate is abutted against the repair surface and the blade stump and the repair blade are then butt welded. The weld joint and the repair plate are machined to the profile contour of the blade stump and to the desired blade profile. This process is used for the repair of blades of integral rotor disks of turboengines, particularly for blades of integral compressor impellers.

Process for repairing damaged blades of turboengines

Growing community of inventors

Dachau, Germany

Bernd Stimper