This research work deals with butt welds performed on AISI 1045 steel plates. A high power diode laser (HPDL) was used as energy source. The objective of this research work was to study the main welding variables and their effects on dimensional characteristics of the beads performed by means of the application of this type of laser. The results obtained show that HPDL is an energy source able to perform welds on AISI 1045 steel plates, under conduction mode, without any kind of mechanized preparation of the parts to be weld, preheating or post-weld treatment and, without filler metal application. A theoretical model to understand the process has been proposed.

Topics
Lasers, Welding
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