Lincoln Electric LF 52D Operator's Manual page 25

Welding GMAW-P Process in synergic mode
Table 14. Exemplify GMAW-P programs for SPEEDTEC
Wire material
Steel
Stainless
Metal Core
Aluminum AlSi
Aluminum AlMg
Cored Wire
Table 15. Exemplify GMAW-P programs for FLEXTEC
Wire material
Steel
Stainless
Aluminum AlSi
Aluminum AlMg
Metal Core
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 right display.
The Trim setting adjusts the arc length. Trim is
adjustable from 0.50 to 1.50. 1.00 is the nominal setting.
Figure 9
Increasing the Trim value increases the arc length.
Decreasing the Trim value decreases the arc length.
Figure 10
English
Gas
ArMIX
ArMIX
ArMIX
Ar
Ar
ArMIX
Gas
ArMIX
ArMIX
Ar
Ar
ArMIX
®
Wire diameter [mm]
0.8 0.9 1.0
95 12
66 36
152
®
Wire diameter [mm]
0.030 0.035 0.040
16 19
36
49
55
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:

Burnback

Run-In WFS

Preflow Time/ Postflow Time

Spot Time

2-Step/4-Step

Crater

Polarity

Wave Control:

UltimArc™
UltimArc™ – for pulse welding programs adjusts the
focus or shape of the arc. In consequence of increasing
UltimArc™ value the arc is tight, stiff for high speed
sheet metal welding.

Adjust range: from -10 to +10.

Default value: 0.
1
1. UltimArc™ Control "-10.0": Low Frequency, Wide.
2. UltimArc™ Control OFF: Medium Frequency and
Width.
3. UltimArc™ Control
Focused.
23
1.2 1.32 1.4
22 157 26
46
84
72
76
92
0.045 3/64 0.052
22 25
40
51
57
71 73
2 3
Figure 11
"+10.0": High Frequency,
1.6
108
56
74
78
1/16
27
42
53
59
75
English