.

Put that in your pipes and smoke it lads!

THE OLD STANDARD  WS59-03
N2.4 Pulsed Transfer (GMAW-P)
The principle of operation involves periodic surges or pulses of current above the transition value for
spray transfer which causes the detachment of droplets, an ideal rate being one droplet per pulse.
Between the current pulses, the arc is maintained by a relatively low background current. Hence, the
average current can be well below the transition value with a weld appearance resembling that obtained
in spray transfer. As a rule, the power involved is between the ranges for short-circuiting and spray
transfers. Pulsed GMAW does not have prequalified status within the context of this Standard.

.
THE NEW STANDARD  WS59-13
N.2.6 Pulsed transfer (GMAW-P)
The principle of operation as a result of the power source design involves periodic surges or pulses of
current above the transition value for spray transfer which causes the detachment of droplets, an ideal rate
being one droplet per pulse. Between the current pulses, the arc is maintained by a relatively low
background current. Hence, the average current can be well below the transition value with a weld
appearance resembling that obtained in spray transfer. As a rule, the power involved is between the ranges
for short-circuiting and spray transfers. Pulsed GMAW does have prequalified status within the limits
specified in this Standard.

.