Laser metal deposition of tial alloys

Publikationstyp
Conference Paper
Date Issued
2006-04
Sprache
English
Author(s)
Kelbassa, Ingomar  
Weisheit, Andreas  
Wissenbach, Konrad  
Hermes, V.  
TORE-URI
http://hdl.handle.net/11420/12518
Start Page
208
End Page
212
Citation
PICALO 2006 - 2nd Pacific International Conference on Applications of Laser and Optics - Conference Proceedings: 208-212 (2006)
Contribution to Conference
2nd Pacific International Conference on Applications of Laser and Optic, PICALO 2006  
Publisher DOI
10.2351/1.5056929
Scopus ID
2-s2.0-56349166153
Publisher
LIA
Laser Metal Deposition (LMD) is a validated process for repairing aero engine parts and complete components. An increase of specific efficiency of aero engines is achieved by replacement of heavy parts out of Nickel Base Alloys in the HPC (High Pressure Compressor) and LPT (Low Pressure Turbine) sectors by lightweight parts out of TiAl Alloys in operating temperature ranges from 450 up to 700 °C. Due to the use of these upcoming new materials and non available repair techniques the market requires adequate R & D and repair development for specific parts and components. First results achieved within basic R & D of LMD of TiAl Alloys are presented. The determined suitable process parameter windows including suitable preheating temperature ranges to achieve defect free (crack free, pore free and bonding defect free) Laser Metal Deposits are shown. The influences of the process parameters on the results achieved by LMD are discussed.
DDC Class
530: Physik