Contribution to surface treatment with powder addition by laser Available to Purchase

To improve laser industrial processings and particularly surface treatment with powder addition, the study of the complete phenomena which occur during this process is to be achieved to improve the treatment repeatability if we want to plan its automation. In our case, gas flow and diphasic flow descriptions are nessecary to know the powder interaction time required to melt them in the high power CO2 laser beam. This qualification will be achieved, in the first time, on spherical particles out of the beam, to measure particle velocities and mass flows. Experimental means and visualization methods will be presented.