METHOD AND SYSTEM TO USE AC WELDING WAVEFORM AND ENHANCED CONSUMABLE TO IMPROVE WELDING OF GALVANIZED WORKPIECE

The invention relates to a method and system to use AC welding waveform and enhanced consumable to improve welding of galvanized workpiece. According to the invention, embodiments of the present invention comprise a system (100, 1200, 2000) and method to weld or join coated materials using an arc we...

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Bibliographische Detailangaben
Hauptverfasser:	NARAYANAN BADRI K, LIAO YENIH, PETERS STEVEN R, HENRY JUDAH BENJAMIN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	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
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Beschreibung
Zusammenfassung:	The invention relates to a method and system to use AC welding waveform and enhanced consumable to improve welding of galvanized workpiece. According to the invention, embodiments of the present invention comprise a system (100, 1200, 2000) and method to weld or join coated materials using an arc welding system alone, or in combination with a hot wire system, where the arc welding system uses a welding current having an AC current portion to build a droplet (D) for transfer to the workpiece (115). In further embodiments, the workpiece (115) is coated with a material, such as zinc, and the arc welding system uses an AC welding waveform which is capable of welding coated workpieces (115) with little or no porosity or spatter and can achieve enhanced performance. Additional embodiments use an enhanced electrode to provide optimum porosity performance. Such embodiments allow for the welding of coated material with little or no porosity and spatter, and at a high welding rate. 本发明的实施例包括种用于单独地或与热丝系统结合地使用弧焊系统来焊接或接合涂