Lincoln Electric LF 52D Operator's Manual page 26

Welding Soft Silence Pulse (SSP
Table 16. Exemplify synergic programs for SSP.
Wire material
Steel
Stainless
Note: The list of available programs depends on the power source.
TM
SSP is a modified
characterized by a very soft and silent arc. This process is
dedicated to welding stainless steel materials and provide
much better wetting of the welded edge than the standard
pulse.
Soft and quieter characteristic of the arc than standard
pulse process, makes welding more enjoyable and less
tiring. Additionally the stability afforded by this transfer
allows to weld in all positions.
During pulse welding, the welding current continuously
switches from low to high level in the loop. Each pulse
delivers a small drop of molten metal from the wire to the
welding pool.
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. The Trim
setting adjusts the arc length. Trim is adjustable from 0.50
to 1.50. 1.00 is the nominal setting.
Figure 12
Increasing the Trim value increases the arc length.
Decreasing the Trim value decreases the arc length.
Figure 13
English
TM
) Process in synergic mode
Gas
ArMIX
ArMIX
especially pulse process
Wire diameter [mm]
0.8 0.9 1.0
13
39
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

Spotweld

2-Step/4-Step

Crater

Polarity

Wave Control

Frequency
Frequency – for pulse welding adjusts the focus or shape
of the arc. In consequence of increasing UltimArc™
Control value the arc is tight, stiff for high speed sheet
metal welding.

Adjust range: from -10 to +10

Default value: 0.
1
1. Frequency Control "-10.0": Low Frequency, Wide.
2. Frequency Control OFF: Medium Frequency and
Width.
3. Frequency Control "+10.0": High Frequency,
Focused.
24
1.2 1.32 1.4
23
49
2 3
Figure 14
1.6
English