B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
B23K9/00—Arc welding or cutting
B23K9/24—Features related to electrodes
B23K9/28—Supporting devices for electrodes
B23K9/29—Supporting devices adapted for making use of shielding means
B23K9/291—Supporting devices adapted for making use of shielding means the shielding means being a gas
B23K9/295—Supporting devices adapted for making use of shielding means the shielding means being a gas using consumable electrode-wire