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Publication of NL6410293ApublicationCriticalpatent/NL6410293A/xx
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
B23K9/0008—Welding without shielding means against the influence of the surrounding atmosphere
B23K9/0017—Welding without shielding means against the influence of the surrounding atmosphere using more than one electrode