Open AccessEffects of arc types on the laser-arc synergic effects of hybrid welding
Author(s) -
Yunfei Meng,
Ming Gao,
Xiaoyan Zeng
Publication year - 2018
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.26.014775
Subject(s) - welding , materials science , plasma arc welding , laser , tungsten , laser beam welding , inert gas , dimensionless quantity , electrode , arc welding , gas metal arc welding , electric arc , plasma , arc (geometry) , inert , optics , composite material , metallurgy , chemistry , thermodynamics , mechanical engineering , physics , organic chemistry , quantum mechanics , engineering
A dimensionless parameter of melting energy increment (ψ) was employed to quantify the synergic effect in laser-arc hybrid welding. The greater of the ψ, the stronger of the synergic effect. The ψ at different welding parameters of laser-tungsten inert gas and laser-metal inert gas hybrid welding was calculated and compared. The former had a stronger synergic effect than the latter because the change range of ψ was far wider than that of the latter, which was -59.3-83.6% and 1-23%, respectively. The differences were discussed according to the electrode mode and the migration behavior of charged particles in the plasmas.