Absorptance enhancement for laser metal processing: application to steel samples.
We describe a reliable technique that noticeably increases the absorptance of a metal surface without any change in its chemical and physical properties, obtained through a chemically induced enhancement of the surface roughness. The main advantages of this method are low cost, easy handling, and low tolerances. A set of optical and mechanical measurements was performed to gain a detailed knowledge of the technique.
U
U
Bernini
U B
UB
Vetrella
A
A
Cutolo
I
I
de Lorio
V
V
Tagliaferri
E
E
Terzini