Current control method during necking detection of fusion electrode electric arc welding

• Main Authors: AKIHIRO IDE, ERA TETSUO
• Format: Patent
• Language: Chinese; English
• Published: 08.05.2013
• Subjects: CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; SOLDERING OR UNSOLDERING; TRANSPORTING; WELDING; WORKING BY LASER BEAM

The invention provides a current control method during necking detection of fusion electrode electric arc welding. Detection is performed on a precursory phenomenon which generates arcs again from a short circuit state, that is molten drop necking. If the necking is detected, then the welding curren...