Physical mechanisms controlling keyhole and melt pool dynamics during laser welding

摘要: Abstract: The aim of this chapter is to review our main recent understanding physical mechanisms occurring during keyhole laser welding. focus on the analysis melt pool dynamics showing that it interaction vapour plume emitted from front with plays a dominant role in dynamics. Different specific regimes concerning behaviour for large range welding speeds can be observed, and these are precisely defined by inclination front. model taking into account processes proposed allows us describe parameters understand different observed results.