403 Laser Surface Modification of Aluminum Alloy

Abstract

In this study, surface modification was tried on the aluminum alloy A5083 by irradiating YAG laser beam after sticking stainless steel powder to the surface. The focus position, the stainless steel powder thickness and Ar gas flow rate are changed under at fixed laser power and laser moving speed. As a result, thick surface modified layer could be obtained with high hardness and flat surface in which a crack did not occur.