-15 -
PATON
PRO-315
MMA/TIG/MIG/MAG
greater than zero. This parameter is set as a percentage of the existing main arc
current set.
Example: Ø3 mm electrode welding, the installed main value of the arc current
is 60 A, and the pulsating power [Po.P] = 40%, while the pulsation frequency [Fr.P]
= 5.0 Hz and “duty cycle” [dut] = 50% by default.
Result: the current will pulsate from 36 A to 84 A with a frequency of 5 Hz,
the pulses will have an equal shape both in amplitude and in time. The “duty cycle”
parameter is set to 50% by default. If this parameter is changed to a value other
than 50%, the asymmetry between the current pulse time and the current “pause”
time is entered:
by default
"duty cycle" [dut] = 50%
"duty cycle" [dut] = 20%
"duty cycle" [dut] = 70%
The machine will react in such a way that the average current level, during
the welding process, will be at the level of the installed arc current main value - 60
A (as it was set), respectively, and the heat input to the welding seam will be at the
same 60 A, but the welding process stability and the weld pool mixing will change.
This is a very important condition for the user to accurately estimate the amount of
change in heat input to the weld pool, for example, comparing with another main
current without a pulsed mode.
These parameters are set in different ways in different situations, according to
the welder's requirements. The order of changing the value of any function in the
current welding mode, see cl. 6.1.
4. TUNGSTEN ARC INERT GAS WELDING (TIG)
t, s
t, s
t, s
