Abstract
The characteristics of a pulsed gas metal arc welding (GMAW-P) process that simultaneously achieves streaming transfer and low arc length are described. The process uses a nearly square shaped current profile. It was found that when high pulse frequency pulses are used with high peak and low background current, stream metal transfer is achieved at short arc lengths. Stable streaming transfer was accomplished at a wire feeding speeds of 13.97m/min with heat input as low as 0.58kJ/mm. Therefore, a high productivity welding process with potential advantages for narrow groove welding of heat sensitive materials is presented.
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