Questions? Call or Text +1-801-658-0015 • 9
e Micro Welder Experts
the edge of a blunt tip electrode assists in
preventing the electrode from sticking to the
weld surface.
• Once the electrode has a at/blunt tip, turn o
the rotary tool and insert the electrode back
into the stylus as explained earlier.
Shield Gas Setup
During the pulse arc welding process high temperature
plasma quickly melts metal into a molten pool. As the
weld is performed, a small amount of shielding gas is
released through the weld stylus to prevent oxygen
from entering the molten pool. After the weld has oc-
curred the protective gas turns o.
If oxygen from the air enters this molten pool, the result
is a metal oxide that is brittle, porous, and burnt-looking.
Protective shielding gas is used, such as 99.996% pure
argon (Argon 4.6), to prevent these eects.
PRESSURIZED GAS SAFETY
There are several important rules that should be fol-
lowed when using a compressed shielding gas such as
argon:
Always secure the pressurized gas tank to a xed
location (such as a sturdy table leg). If the pressurized
gas cylinder were to tip and become damaged there
is possibility that the tank could become a projectile,
expelling the high-pressure shielding gas as propellant.
Always turn o the shielding gas at the main valve
when nished. This will help your shielding gas supply
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