7. Welding operation
WMD078TE0PAA07
71
(*)
Trep: It is possible to change crater repeat
time. (See section “
on page 104 - group 3, submenu
17)
7.2.5 ARC SPOT
•
In ARC SPOT welding, it is useful to use the
arc spot nozzle: TGN01615 (sold separately).
•
Suitable for lap welding of thin plates (thick-
ness of about 1.0 mm).
•
Hold the torch switch in the ON state (keep
holding down) to weld.
•
The arc automatically stops when the preset
arc spot time is over.
• For arc spot time settings, see section “
” on page
Note
•
The arc stops if the torch switch is turned off
before the preset arc spot time is over.
•
Initial welding and crater welding are not applicable.
Weld conditions
Tpf: Gas pre-flow time
Taf: Gas post-flow time
Trep
(*)
:Crater repeat time
☆
: Arc start
★
: Arc end
OFF
Tpf
★
OFF
ON
Crater
crater welding
Previous self-hold
OFF
☆
★
Trep
repeat
Crater
ON
Crater
Torch switch
Gas supply
Wire feed
Weld voltage
Weld current
Wire
run-in speed
Burnback
time
Burnback
time
Arc spot welding using arc spot nozzle
Arc: ON
Torch: ON
Arc: OFF
<Note>
The arc stops if the torch switch is turned
off before the preset arc spot time is over.
The arc automatically stops
when the preset arc spot
time is over.
After arc is stopped,
turn off the torch switch
Torch switch
Gas supply
Wire feed
Weld voltage
Weld current
Weld conditions
Tpf: Gas pre-flow time
Taf: Gas post-flow time
Tspt: Arc spot time
☆
: Arc start
★
: Arc end
ON
OFF
ON
OFF
Tpf
Taf
★
☆
Main welding
Tspt
<Note> If the torch switch is turned off before the preset
arc spot time, the arc immediately stops at that point.
Wire
run-in speed
Burnback
time