Title: Laser:powder:substrate interactions in laser cladding and casting

Authors: A.F.H. Kaplan, John Powell, Hans Gedda

Addresses: Lulea University of Technology, Division of Manufacturing Systems Engineering, S-971 87 Lulea, Sweden. ' Lulea University of Technology, Division of Manufacturing Systems Engineering, S-971 87 Lulea, Sweden. ' Lulea University of Technology, Division of Manufacturing Systems Engineering, S-971 87 Lulea, Sweden

Abstract: Laser cladding and the recently developed laser casting technique are similar in their physical mechanisms. A transition from cladding to casting and vice versa can be achieved by proper control of the process parameters, both for preplaced and blown powder. In the present work, the preplaced powder technique is studied at a fundamental level. Its physical nature is responsible for a large operating window of dilution free cladding on the one hand and bond free casting on the other.

Keywords: laser cladding; laser casting; preplaced powder; powder grains; modelling; process parameters; dilution free cladding; bond free casting.

DOI: 10.1504/IJMMP.2010.035937

International Journal of Microstructure and Materials Properties, 2010 Vol.5 No.2/3, pp.164 - 177

Available online: 10 Oct 2010 *

Full-text access for editors Access for subscribers Purchase this article Comment on this article