What are the typical defects in laser welds?

The typical defects that can occur in laser welds are solification cracking, the formation of shrinkage cracks during the solidification period of welded metal; porosity, the presence of cavities in the weld metal that form because of the freezing in of released gas from the weld pool as it solidifies; and spatter, droplets of molten material generated near or at the welding arc.