Hello joseph asturino, I will try to give you the brief and somewhat non-scientific interpretation of this. Short circuiting transfer is one of three modes of material transfer that occurs in the GMAW welding process, some might consider GMAW-P as a fourth. This mode is described as the filler wire coming into contact with the base metal, creating a short-circuit which causes a portion of the wire to melt off and deposit onto the plate, as this occurs the wire burns back slightly from the point of contact and leaves a gap in the current transfer, since the wire is being fed at a constant rate it advances to the base metal again causing the process to be repeated, this process occurs fairly rapidly and in a continious fashion as the weld progresses. There is also a certain voltage range that this particular mode of transfer occurs at and the type of shielding gas that is being used will have an influence as well. Generally the short circuit transfer occurs at the lowest voltages, globular transfer occurs next in succession and spray transfer occurs at the high end of the voltage scale. Once again gas composition can have a definite effect on the various modes of transfer. Hope this is somewhat what you were looking for. Regard, aevald
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