－
36
－
10. OPERATION
(Continued)
10.1.3 Setting of Crater Fill Functions
A crater is a depression left at the termination point of the weld.
As it may cause cracks and welding defects, a crater treatment
called crater-filler is used to fill in the depression.
When giving a crater treatment, set the CRATER FILLER[6] key to “ON” or “REPEAT”. The
crater-fill mode is switched in the following order each time the key is pressed.
[OFF]
→
[ON]
→
[REPEAT]
→
[ARC SPOT]
The schematic diagrams for different CRATER FILLER settings are as follows:
CRATER
INITIAL
condition
Timing chart
OFF
●
Keep the torch switch pressed and held during welding.
Crater
Bead
Molten Pool
Torch switch
Gas flow
Voltage between
output terminal
Wire feed speed
Welding current
ON
OFF
Pre-flow time
No-load voltage
Slow-down speed
Post-flow time
Anti-stick(burnback)time
Main welding
Wminfo
