Fraunhofer-Gesellschaft

Publica

Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten.

Surface remelting of cast iron camshafts by CO2 laser radiation

 
: Zwick, A.; Gasser, A.; Kreutz, E.W.; Wissenbach, K.

Bergmann, H.W.; Kupfer, R. ; Arbeitsgemeinschaft Wärmebehandlung und Werkstofftechnik e.V. -AWT-:
Laser beam hardening. ECLAT '90. Proceedings
Witzmannsberg: EMS Europ. Media Service, 1990
pp.384
European Conference on Laser Treatment of Materials (ECLAT) <3, 1990, Erlangen>
English
Conference Paper
Fraunhofer ILT ()
absorptivity; cast iron camshaft; CO2-laser radiation; energy coupling; form stability; globular/lamellar cast iron; ledeburitic layer; remelting process; wear property

Abstract
Cast iron cams of assembled camshafts are remolten by CO2 laser radiation to enhance the wear properties by producing a ledeburitic layer. The investigations are performed on four different globular and lamellar cast irons. To improve the process efficiency the application of beam shaping optics and possibilities to increase the absorptivity during the remelting process are studied. The influence of different process parameters concerning beam shaping and energy coupling (different surface preperations, polarized laser radiation) on the processing results (remelting geometry, form stability, structure, processing time) are investigates for the remelting of camshafts.

: http://publica.fraunhofer.de/documents/PX-35427.html