SUNSTONE Orion 150s Series, Руководство пользователя

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9
The Micro Welder Experts
• Once the electrode is sharp and clean, turn off
the rotary tool and insert the electrode back
into the stylus as explained above.
Note: As a rule of thumb, Sunstone recommends a
sharpened electrode anytime a new work piece is being
welded.
WHEN TO FLATTEN/ BLUNT THE
ELECTRODE
• When working with silver, copper, and other
highly conductive metals in energy levels above
20 Ws, it can be helpful to blunt the electrode,
as shown in Figure 9.1.
• Follow the “When to Sharpen the Electrode”
instructions on the previous page.
• Once the electrode is sharp and clean, turn
the electrode to a 90-degree angle and push
it against the diamond disk in order to place
a flat/blunt tip on the electrode. Cleaning
the edge of a blunt tip electrode assists in
preventing the electrode from sticking to the
weld surface.
• Once the electrode has a flat/blunt tip, turn off
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 off.
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 effects.
Stylus Cone
Example of a Sharp
Electrode Tip
Example of a Flat
Electrode Tip
Electrode Shaping
Figure 9.1. When working with silver, copper, and other
highly conductive metals, a flat or blunt electrode
provides better results.