{HEAD ~ A process} for laser beam welding is provided, which on the one hand ensures maintaining {TAIL ~ a maximal gap width} between the sheets and on the other hand makes possible a maximal utilization of the achievable welding speed 
ensures maintaining
{ HEAD ~ A process } for laser beam welding is provided , which on the one hand ensures maintaining { TAIL ~ a maximal gap width } between the sheets and on the other hand makes possible a maximal utilization of the achievable welding speed
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH