Pulsed / Pulsed
Metal transfer
Welding-current time-curves / schematic representation of the metal transfer
(1)
(2)
(3)
(4)
(5)
(6)
I
L
I
T
(1)
(2)
(3)
(4)
74
I (A)
I
I
L
T
I
> I
L
T
(3)
(5)
leading wire electrode
trailing wire electrode
active pulsed arc with droplet transfer
inactive pulsed arc (no droplet transfer)
direction of welding
180° phase displacement
= welding current of leading power source
= welding current of trailing power source
Leading
Leading
Trailing
Active arc - leading wire electrode
Metal transfer - leading wire electrode
Active arc - trailing wire electrode
Metal transfer - trailing wire electrode
(6)
(4)
Leading
Trailing
(1)
(2)
Leading
Trailing
t (s)
Trailing