Tig Welding - DeWalt DCW100 Guide D'utilisation

ARC-FORCE DYNAMIC (FIG. 1)
To obtain optimum welding results, it will sometimes be necessary
to adjust the arc-force dynamic.
1. Press the setting value button (O) until the arc-force dynamic
indicator ( ) lights up.
2. Turn the adjusting dial (P) until the desired correction value is
reached on the LCD setting value display (M).
3. Carry out welding.
Operating principle:
At the moment of droplet transfer or in the event of a short circuit,
the amperage is briefly increased in order to obtain a stable arc.
If the rod electrode threatens to sink into the weld pool, this
measure prevents the weld pool solidifying, as well as preventing
a prolonged short-circuit of the arc. This largely prevents the rod
electrode from sticking.
NOTE: The maximum arc-force dynamic current is limited to
180 A.
Examples:
• Arc-force dynamic = 0
- arc-force dynamic deactivated
- soft, low-spatter arc
• Arc-force dynamic = 20
- arc-force dynamic with 40 A current increase
- harder, more stable arc
• Set welding current = 100 A / arc-force dynamic = 60
- arc-force dynamic theoretically with 120 A current increase
- actual increase is just 80 A as the maximum current limit is
reached.

TIG Welding

NOTICE: Do not use pure tungsten electrodes (color-coded
green) if the TIG welding process has been selected.
CONNECTING THE GAS CYLINDER (FIG. 1, 4)
WARNING: If gas cylinders topple over, there is a risk of
very serious injury and damage. Place gas cylinders on a solid,
level surface so that they remain stable. Secure gas cylinders to
prevent them from falling over.
1. Secure the gas cylinder and
take the protective cap off the
gas cylinder.
2. Briefly open the gas cylinder
valve to remove any dust or
dirt.
3. Check the seal on the pressure
regulator.
4. Screw the pressure regulator
onto the gas cylinder and
tighten it.
5. Connect the TIG welding torch gas hose to the
pressure regulator. (A connection example of TIG welding with
gas-valve torch is shown in figure 4. The welder does not have
an integrated gas connection.)
6. Open the gas cylinder valve.
7. Open the gas shut-off valve on the welding torch or, in the
case of TIG devices, make contact with the component.
8. Set the desired gas flow rate on the pressure regulator.
PREPARATION (FIG. 1)
WARNING: Risk of injury and damage from electric shock. As
soon as the power source is switched on, the electrode in the
welding torch is live. Make sure the electrode does not touch
any persons or electrically conducting or earthed parts (e.g. the
housing, etc.).
13
FIG. 4