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Cladding of valves with Co2 laser radiation

 
: Küpper, F.; Kreutz, E.W.; Gasser, A.; 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.461
European Conference on Laser Treatment of Materials (ECLAT) <3, 1990, Erlangen>
English
Conference Paper
Fraunhofer ILT ()
beam geometry; correlation; dilution; feed rate; laser power; overlap zone; wear valve temperature

Abstract
For the cladding of valves the correlation between the processing parameters laser power, feed rate, beam geometry, powder feeding rate, type of powder and processing results such as layer geometry, clad structure, dilution of clad and base material is presented. The specific problems as influence of heat conduction on the clad tack as well as the optimization of the overlap zone by ramping the laser output power are investigates and discussed.

: http://publica.fraunhofer.de/documents/PX-7857.html