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A superb arc concentration is obtainable with this process, which is the optimum condition for fillet
welding of thin plate.
( 2).Sets to "AC STD. TIG welding" in case of AC STD. TIG welding.
(3).To use AC hard TIG welding, place the switch in the "AC HARD TIG" position. Output current of this
welding method forms pulse superposed waveform which gives deep penetration. AC Hard TIG welding
method is suitable for butt welding of works having wide roots gap.
(4).To use AC soft TIG welding, place the switch in the "AC SOFT TIG" position.
Output current of this welding method forms sine waveform which gives shallow penetration. The AC
soft TIG welding method is suitable for butt welding of thin plates. (Max. output current: 330A) When "TIG"
is selected, set values for initial, welding, crater and pulse current adjustors and their actual output
currents do not match. When "MIX TIG" is selected, set values for the individual current adjustors
and their output currents do not match due to its frequency. In both cases, refer to the
values at the ammeter.
(5)Sets to "DC TIG welding", in case of DC TIG welding.
(6)Sets to "DC stick welding", in case of DC stick welding. (MAX output current:400A)
10.Torch selection switch..........Selects either water- cooled or air- cooled to match the torch used
11. Selection switch... Set to "WELD" when performing ordinary welding, and to CHECK when regulating the
flow rate of argon gas
12. Pulse frequency control
switched from TIG welding to pulse TIG welding.
13. Pulse width adjustor
rate is time ratio of pulse current to the sum of welding(base )and pulse currents (Pulse/(Base+ pulse))
14. Upslope timer Adjusts the shifting time from initial current to welding current during TIG welding.
15. Pulse frequency adjustor
16. Pulse current adjustor
..........
17. Downslope timer
..........
18. Gas postflow timer
..........
19. MIX TIG frequency
welding.
..........
20. Frequency
In AC(STD,HARD,SOFT) TIG welding, set the pulse(see) selector switch to OFF, and
then select a frequency. (It is factory set to LOW at shipment.) ●"LOW"side:70Hz( Cleaning width adjust
or ●"HIGH"side:100 Hz Set to the center position.) Arc is centered. It is effective to prevent no-arc
operation in build-up welding or welding at low welding speed, such as afterheat welding
..........
21. Digital meter
..........
22. A-V display switch
..........
Selects a low pulse of(0.5~25Hz) or a middle pulse of (10-500Hz)when
..........
It is used to adjust the pulse current rate in pulse welding. The pulse current
..........
Adjusts the pulse frequency during pulse TIG welding.
..........
Adjusts the pulse current during pulse TIG welding
Adjusts the shifting time from welding current to crater current during Tig welding
Adjusts the postflow time after TIG welding.
It is used to adjust frequency when AC and dc are switched adjustor in MiX TIG
Display current or voltage at digital mete
Control the display of the digital meter.
7
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