Operation, Tig gtaw, Recommended welding procedures for power mode – Lincoln Electric POWER WAVE 355M User Manual
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OPERATION
B-6
B-6
POWER WAVE 355M/405M
TIG GTAW
The TIG mode features continuous control from 5 to
425 amps. The TIG mode can be run in either the
Touch Start TIG or Scratch start mode.
The Arc Control level selects the starting mode.
Between –10 and 0, the Touch Start TIG mode is
selected. The OCV is controlled below 10V and the
short circuit "TIG touch" current is maintained at
approximately 25 amps, independent of the preset
current. When the tungsten is lifted, an arc is initiated
and the output is regulated at the preset value. A set-
ting of 0, results in the most positive arc initiation. A
setting of -10 reduces the start procedure to start the
weld, and from there, to ramp to the welding proce-
dure over a specified amount of time.
A setting above 0 selects a Scratch Start. Full OCV is
available when the arc initiates the output is regulated
to the preset value
Typically starting procedure on a higher “+” setting is
known as a “Hot Start”. Setting a starting procedure
on a lower setting is known as a “Cold Start”.
Recommended Welding Procedures for Power Mode
NOTE:
Later versions of weld software
eliminated the Arc Control Function
in TIG mode and only allow for
“Touch Start” operation.
SMAW
In SMAW (STICK mode), the arc control adjusts the
arc force. It can be set to the lower range (0 to -10) for
a soft and less penetrating arc characteristic or to the
higher range (0 to +10) for a crisp and more penetrat-
ing arc. Normally, when welding with cellulosic types of
electrodes (E6010, E7010, E6011), a higher energy
arc is required to maintain arc stability. This is usually
indicated when the electrode sticks to the work-piece
or when the arc pops-out during manipulative tech-
nique. For low hydrogen types of electrodes (E7018,
E8018, E9018, etc.) a softer arc is usually desirable
and the lower end of the Arc Control suits these types
of electrodes. In either case the arc control is available
to increase or decrease the energy level delivered to
the arc.
MATERIAL
Aluminum 4043 Aluminum 5356
Mild Steel
Mild Steel
Mild Steel
Mild Steel
Mild Steel
Mild Steel
Stainless Steel
Stainless Steel
WIRE
E4043
E5356
L56
L56
L56
L56
L56
L56
E308L
E308L
WIRE SIZE
0.035
0.035
0.025
0.025
0.030
0.030
0.035
0.035
0.030
0.035
GAS
100% Agr.
100% Agr.
100% CD2
75/25 Ar/CO2
100% CD2
75/25 Ar/CO2
100% CD2
75/25 Ar/CO2
Tri-mix
Tri-mix
22 ga.
Not
recommended
100 / 0.8
Not
recommended
90 / 1.0
20 ga.
120 / 1.0
120 / 1.0
100 / 0.7
100 / 1.0
80 / 1.5
50 / 0.5
18 ga.
140 / 1.7
140 / 1.5
110 / 1.5
110 / 1.5
100 / 2.5
100 / 2.5
110 / 2.0
110 / 2.0
16 ga.
190 / 2.0
190 / 2.0
125 / 2.0
125 / 2.0
125 / 3.0
125 / 3.0
140 / 2.5
130 / 2.7
14 ga.
400 / 2.0
400 / 2.5
260 / 3.0
260 / 3.0
160 / 2.3
160 / 2.3
160 / 3.8
160 / 3.5
210 / 3.0
190 / 3.5
12 ga.
330 / 5.0
330 / 4.5
230 / 3.5
230 / 3.5
200 / 5.0
200 / 4.5
270 / 5.0
230 / 6.0
10 ga.
500 / 7.0
500 / 7.0
300 / 6.0
300 / 6.0
240 / 6.5
240 / 7.0
325 / 6.5
300 / 7.0
3/16
570 / 90
600 / 7.8
400 / 7.5
400 / 7.0
1/4
700 / 9.1
700 / 8.5
COMMENTS
Not
Recommended
below 400
WFS
Not
Recommended
below 400
WFS
MA
TERIAL
THICKNESS
WFS
/
PO
WER
MODE
SETTING
TABLE B.2