ABSTRACT
The effectiveness of energy absorption during laser, plasma, and laser-plasma welding of carbon and stainless steels using fiber laser radiation was investigated. It is shown that during laser-plasma welding, the energy absorbed by the metal is 5-6% higher than the arithmetic sum of absorbed energies under the separate action of laser radiation and plasma arc. This is mainly due to an increase in arc voltage in the process of laser-plasma welding compared to plasma welding.
