Hybrid Process for High-Speed WeldingMarch 1, 2008
Welding Solutions Inc., Madison Heights, MI, introduces a new hybrid welding system called Super-MIG, combining two standard processes, plasma-arc and gas-metal-arc, into one hybrid welding process. The system reliably delivers rapid welding speeds under variable-gap conditions, deep weld penetration, minimal spatter and a narrow heat-affected zone. Super-MIG can do true overlap welds—continuous or stitch/ spot configurations. On average, the process has been proven to achieve welding speeds as much as two times faster than the conventional gas-metal-arc-welding (GMAW) applications, according to company officials.
The interface and torch, patented by Plasma Laser Technologies, integrates with any of the commonly used GMAW welding equipment.
Super-MIG combines the deep penetration characteristics of plasma-arc welding with the high wire-deposition rates of GMAW. These two processes are combined in a unique torch. Either an arc-welding robot or hard automation is required to control the movement of the torch, and an automated torch-cleaning device is required to periodically clean the torch.
During tests on zinc-coated sheet, the results of the process included: