English 37 English
Welding GMAW-P Process in synergic mode
Table 26. Exemplify GMAW-P programs for SPEEDTEC
®
Wire material
Gas
Wire diameter [mm]
0.8
0.9
1.0
1.2
1.32
1.4
1.6
Steel
ArMIX
95 12 22 157 26 108
Stainless
ArMIX
66 36
46 56
Metal
Core
ArMIX
84
Aluminum
AlSi
Ar
72 74
Aluminum AlMg
Ar
152
76
78
Cored
Wire
ArMIX
92
Table 27. Exemplify GMAW-P programs for FLEXTEC
®
Wire material
Gas
Wire diameter [mm]
0.030
0.035
0.040
0.045
3/64
0.052
1/16
Steel
ArMIX
16 19
22 25 27
Stainless
ArMIX
36 40 42
Aluminum
AlSi
ArMIX
49 51 53
Aluminum
AlMg
Ar
55 57 59
Metal
Core
Ar
71 73 75
Note:
The list of available programs depends on the power source.
Synergic GMAW-P (Pulsed MIG) welding is ideal for low
spatter, out of position. During pulse welding, the welding
current continuously switches from a low level to a high
level and then back again. Each pulse sends a small
droplet of molten metal from the wire to the weld puddle.
Wire Feed Speed is the main control parameter. As the
Wire Feed Speed is adjusted, the power source adjusts
the waveform parameters to maintain good welding
characteristics.
Trim is used as a secondary control – the value of
parameter in the upper right side of display [26]. The Trim
setting adjusts the arc length. Trim is adjustable from 0.50
to 1.50. 1.00 is the nominal setting.
Increasing the Trim value increases the arc length.
Decreasing the Trim value decreases the arc length.
1.50
1.00
0.50
Figure 97
When Trim is adjusted, the power source automatically
recalculates the voltage, current and time of each part of
the pulse waveform for the best result.
Additionally can manually set:
Preflow Time/ Postflow Time
Burnback
Spotweld
Run-In
WFS
Start
procedure
Crater
2-Step/4-Step
MECHAPULSE™
Wave
Control
UltimArc™
The 2-Step - 4-Step
change the function of the gun’s
trigger.
2 Step trigger operation turns welding on and off in
direct response to the trigger. Welding process is
performed when the gun’s trigger is pulled.
4-Step mode allows to continue welding, when the
gun’s trigger is released. To stop welding, the gun’s
trigger is pulled again. 4-step mode facilitates to make
long welds.
Note:
4-Step does not work during Spot Welding.
Figure 98