WELD THE WORLD
Cod. 006.0001.2000
19/07/2018 V.2.0
Discovery 221AC/DC Evo
Discovery 300AC/DC Evo
33
ENGLISH
SINUSOIDAL WAVE:
○ Benefits:
•
Good energy transmitted on the weld workpiece.
•
Appearance of a bright, clean weld bead.
• Good execution speed and optimum penetration.
•
Low level of welding arc noise.
○ Disadvantages:
•
Slightly lower performance than with a Square wave.
TRIANGULAR WAVE:
○ Benefits:
•
Low energy transmitted to the weld workpiece and therefore suitable for materials or alloys
with low melting points.
• Penetration control (not high)
•
Very low level of welding arc noise.
○ Disadvantages:
• Current is not suitable for high speed execution or for bright beading or high penetration.
- SPOT TIG TIME
○ Only available with 2 STROKE SPOT When the torch trigger is pressed the welding arc persists
for the time set in the parameter. Press the torch trigger again to resume the welding process.
○ The result of this is a very precise, non-oxidized welding spot without any plastic deformation of
the sheet.
-
PAUSE TIME
○ Available only with 2 Stroke SPOT and arc strike with HF activated. It causes a pre-set pause time
between two spot-welding times. Press the torch trigger to obtain the welding arc for the time set
with the parameter SPOT-WELDING TIME. The arc then remains extinguished for the time set
by PAUSE TIME and then starts again. This process continues until the torch trigger is released.
When the parameter is set to OFF, the operating mode of the Q-SPOT is standard.
- HF ARC START
○ This parameter enables the arc strike in the TIG welding procedure by means of a high frequency
(HF) current discharge. The high frequency arc strike (HF) prevents the inclusion of impurities at
the start of the weld pass. If set to OFF, the ignition will be of a ‘LIFT ARC’ strip type
•
HF:
This type of ignition occurs by means of a high-voltage electric discharge but of low am
-
perage (HF) between the electrode tip and the weld workpiece. Once the electric arc is estab
-
lished the generator stops delivering the HF charge. This type of ignition in addition to being
very easy and immediate, allows the electrode life to be extended and to keep it very pure
allowing the operator to work with a very precise and stable arc.
Antwerpsesteenweg 949 9041 Gent - Oostakker
[email protected]
www.welda.be
T
+32 (0)9 355 74 26
F
+32 (0)9 355 92 01
