High power diode lasers (HPDL) technology offers many advantages with respect to CO2 and Nd:YAG lasers one, because of its high efficiency, compact design, low maintenance and low capital costs. In materials processing, HPDL systems find applications for plastic welding, surface treatment and heat conduction welding of metals. In this paper an experimental investigation on the laser welding of AISI 304 stainless steel sheets using diode laser has been carried out. The study has concerned the assessment of butt joints obtained by adopting different levels of beam power and welding speed. The influence of welding parameters has been taken into account by measuring the bead geometric characteristics and by carrying out tensile tests. At the end, a metallographic analysis has allowed to evaluate the morphological structure of welding beads.
Welding process of stainless steel sheets with high power diode laser
DI ILIO, Antoniomaria;PAOLETTI, ALFONSO
2008-01-01
Abstract
High power diode lasers (HPDL) technology offers many advantages with respect to CO2 and Nd:YAG lasers one, because of its high efficiency, compact design, low maintenance and low capital costs. In materials processing, HPDL systems find applications for plastic welding, surface treatment and heat conduction welding of metals. In this paper an experimental investigation on the laser welding of AISI 304 stainless steel sheets using diode laser has been carried out. The study has concerned the assessment of butt joints obtained by adopting different levels of beam power and welding speed. The influence of welding parameters has been taken into account by measuring the bead geometric characteristics and by carrying out tensile tests. At the end, a metallographic analysis has allowed to evaluate the morphological structure of welding beads.Pubblicazioni consigliate
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