This creates a seam of overlapping spot welds. This technique reduces the overall heat input to the base material and also can allow for increases in weld speed. Arc pulsing brings many benefits to the welding procedure, often improving weld quality and repeatability. In some cases, materials and weld joints with poor fit-up that are difficult to weld successfully with a nonpulsed arc can be welded easily with a pulsed arc technique. The results are improved weld quality and increased output.
Many welders arrive at the same welding result using somewhat different welding parameters.
The primary objective is to use the benefits of weld pulsation to improve weld quality and output. Optimizing the welding process in manufacturing will improve weld quality, increase weld speed, and reduce scrap and rework costs. The pulse frequency depends on the required spot overlap. A good starting parameter is to try to achieve 75 percent spot overlap. Material with higher heat sensitivity may require a lower pulse width percentage on the peak current.