PLASMA TRANSFER WIRE ARCH WIRE FEED CONTROL SYSTEM

• Main Authors: Maki, Clifford E, Schepak, Antony George, Boileau, James Maurice
• Format: Patent
• Language: English
• Published: 17.01.2019
• Subjects: CHEMICAL SURFACE TREATMENT; CHEMISTRY; CLADDING OR PLATING BY SOLDERING OR WELDING; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; DIFFUSION TREATMENT OF METALLIC MATERIAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; METALLURGY; PERFORMING OPERATIONS; SOLDERING OR UNSOLDERING; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; TRANSPORTING; WELDING; WORKING BY LASER BEAM

A wire feed control system includes an anti-twist mechanism and a controller programmed to operate the anti-twist mechanism, responsive to a measured degree of twist of a wire on a trajectory between a feed for the wire and a plasma transfer wire arch (PTWA) torch, to maintain the degree of twist within a predetermined range defined by natural rotation introduced to the wire by the PTWA torch.