Abstract :
This article demonstrates the optimum working areas and cutting conditions for the laser cutting of a series of advanced high
strength steels (AHSS). The parameters that most influence the cutting of sheet metal have been studied and the results have been
divided into two large groups with thickness of more and less than 1 mm.
The influence of the material and, more important, the effect of coating have been taken into account. The results, have
demonstrate very different behaviours between the thinnest and thickest sheets, whilst the variation of the cutting parameters due
to the influence of the material is less relevant.
The optimum cutting areas and the quality of the cut evaluated with different criteria are presented. Finally, the best position
for the laser beam has been observed to be underneath the sheet
