Fronius LSC LOW-SPATTER Welding Machine User Manual

Fronius LSC LOW-SPATTER Welding Machine

Product Information

The LSC (Low Spatter Control) process is a modified standard arc welding process that offers high arc stability and reduces spatter. It is designed to provide exceptional welding results by ensuring high-quality weld seams with significantly less spatter. The LSC process is based on the short circuit occurring at a low current level, which leads to gentle arc reignition and maximum stability in the welding process. This process is made possible by the TPS/i welding system’s capability to quickly detect process conditions during the short circuit and react accordingly. The LSC process also enables an increased deposition rate in the areas of dip transfer, intermediate, and spray arcs.

Product Usage Instructions

To achieve optimal welding results using the LSC process, follow these usage instructions:

1. Ensure that you have the TPS/i welding system installed and connected.
2. Prepare the workpiece and set it up for welding.
3. Select the LSC process mode on the TPS/i welding system.
4. Adjust the welding parameters according to the material being welded and the desired weld quality.
5. Position yourself in a comfortable and safe welding position.
6. Start the welding process by initiating the arc.
7. Maintain a steady welding speed and keep the welding torch at the correct angle and distance from the workpiece.
8. Observe the weld pool and adjust the welding parameters if necessary.
9. Continue welding until you have completed the desired weld seam.
10. Inspect the weld seam for quality and make any necessary adjustments or rework if needed.
11. Clean and maintain the equipment after use.

By following these usage instructions, you can take advantage of the benefits of the LSC process, including less spatter, reduced rework, lower consumption of filler material, fewer rejects, less cleaning required, and savings on wearing parts. The LSC process is also well-suited for out-of-position welding and provides excellent support for welding in the downhand position. Additionally, it offers lower gas costs when using 100% CO2 and improved process stability in the intermediate arc area.

PREVENT SPATTER. REDUCE REWORK.

EXCEPTIONAL WELDING RESULTS REQUIRE INNOVATIVE SOLUTIONS: THE LSC PROCESS ENSURES HIGH ARC STABILITY WITH LOW SPATTER.

• The LSC process is a modified standard arc with particularly high arc stability. As a result, the user achieves high-quality weld seams with considerably less spatter in the area of the dip transfer, intermediate, and spray arcs.
• In addition, the properties of LSC enable an increased deposition rate in these areas.
• The LSC process is based on the short circuit occurring at a low current level, which leads to gentle arc reignition and maximum stability in the welding process. This is all made possible by the enormous capability of the TPS/i: the high-end welding system quickly detects process conditions during the short circuit, allowing it to react just as quickly.
• In combination with the penetration stabilizer, the user can achieve extraordinary results.

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THE BENEFITS

MORE ECONOMICAL WELDING WITH LSC.

ECONOMICAL AND SUSTAINABLE

RESOURCE-EFFICIENCY
The low-spatter LSC process reduces rework. This means that wearing parts can be conserved, working time saved, and rejects significantly reduced.

SAVINGS ON FILLER METAL
Due to the precise control and the resulting lower spattering of LSC, the consumption of weld filler metal as well as lifecycle costs are also cut.

ENERGY-SAVING
A stable, precisely controlled arc improves welding quality and thus shortens the overall time taken to perform different welding tasks. Lower energy consumption is a direct result.

LSC – THE MODIFIED DIP TRANSFER ARC.

THE LSC PRINCIPLE OF SOFT REIGNITION REPRESENTS A SIGNIFICANT DIFFERENCE TO THE STANDARD DIP TRANSFER ARC.
This principle is achieved by triggering the short circuit at a low current level, which in turn leads to a stable welding process.

STANDARD
DIP TRANSFER ARC

Excellent results can already be achieved with the controlled standard arc from Fronius. But why settle for the standard when virtually spatter-free welding is possible?

LSC

DIP TRANSFER ARC
The digitally enhanced intelligence reacts optimally to voltage fluctuations, THUS ENSURING AN ABSOLUTELY STABLE ARC.

THE RIGHT CHARACTERISTIC

EVERY WELDING APPLICATION HAS SPECIAL CHALLENGES AND NEEDS CUSTOM SOLUTIONS.
LSC therefore contains various refinements – in other words, characteristic curves that are matched to individual customer requirements. This eliminates the need for cumbersome and often lengthy device parameterization. Instead, the preconfigured characteristic can be conveniently set on the power source.
This saves time and enables reproducible quality.

WELDING WITH LSC

IN THE DIP TRANSFER AND INTERMEDIATE ARC

ROOT PASS WELDING

Up to now, the root pass usually had to be welded in an upward position in the conventional dip transfer arc.

In the downhand position, there was a risk that a lack of fusion would occur. Typically, this was caused by the low arc pressure as the weld pool advanced. In contrast, the LSC Root characteristic means that welding can now be carried out in a downward position and therefore faster thanks to the high arc pressure and high deposition rate. With LSC Root Advanced, a rate of 25 cm/min in a downward position can even be achieved.

VERTICAL UP POSITION PF/3G

REDUCED CLEANING EFFORT FOR GAS NOZZLES

A COMPARISON OF THE GAS NOZZLES AFTER 340 IGNITIONS
LSC vs. standard dip transfer arc
(VD = 7.0 m/min with 15 mm stick out, contact tip 1.0 mm):
UP TO 75% LESS SPATTER WITH LOW SPATTER CONTROL.

WELDING WITH LSC IN THE SPRAY ARC

With an activated penetration stabilizer, the TPS/i readjusts the wire speed instead of the welding current, thereby ensuring constant penetration.
An additional wire control keeps the current and penetration constant if the distance between the welding torch and the component changes. The arc becomes significantly more stable and the penetration is always constant.

ADVANTAGES OF THE PENETRATION STABILIZER

• Improved welding quality
• Savings in rework and additional costs
• Ideal support in case of insufficient visibility or accessibility = stick-out fluctuations are compensated for
• Ideal for position welding
• Narrower opening angles can be used –

HOW IT WORKS

PENETRATION STABILIZER

OVERVIEW FRONIUS WELDING PACKAGES

/ Perfect Welding / Solar Energy / Perfect Charging

THREE BUSINESS UNITS, ONE GOAL: TO SET THE STANDARD THROUGH TECHNOLOGICAL ADVANCEMENT.

What began in 1945 as a one-man operation now sets technological standards in the fields of welding technology, photovoltaics and battery charging. Today, the company has around 5,440 employees worldwide and 1,264 patents for product development show the innovative spirit within the company. Sustainable development means for us to implement environmentally relevant and social aspects equally with economic factors. Our goal has remained constant throughout: to be the innovation leader.

Fronius Canada Ltd.
2875 Argentia Road, Units 4,5 & 6 Mississauga, ON L5N 8G6 Canada
Telephone +1 905 288-2100
Fax +1 905 288-2101
sales.canada@fronius.com
www.fronius.ca

Fronius USA LLC
6797 Fronius Drive Portage, IN 46368 USA
Telephone +1 877 FRONIUS
sales.usa@fronius.com
www.fronius-usa.com

Fronius UK Limited
Maidstone Road, Kingston Milton Keynes, MK10 0BD United Kingdom
Telephone +44 1908 512 300
Fax +44 1908 512 329
info-uk@fronius.com
www.fronius.co.uk

Fronius International GmbH
Froniusplatz 1 4600 Wels Austria
Telephone +43 7242 241-0
Fax +43 7242 241-953940
sales@fronius.com
www.fronius.com

Text and images correspond to the current state of technology at the time of printing. Subject to modifications.
All information is without guarantee in spite of careful editing – liability excluded. Copyright © 2011 Fronius™. All rights reserved.

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