The LSC welding process: high arc stability and low spattering

LSC process: prevent spatter - reduce rework

LSC welding process

Extraordinary welding results require innovative solutions: the LSC process ensures high arc stability and low spattering.

For maximum stability: the LSC process really plays to its strengths, especially with short circuit transfer. This process is based on the early detection of short-circuit incidents and enables the soft reignition of the arc at a low current level, ensuring maximum stability throughout the welding process.

Our high-end TPS/i and iWave welding systems quickly detect process conditions during the short circuit, allowing them to react just as quickly. In combination with the penetration stabilizer, users are able to achieve extraordinarily stable results.

The advantages for you

Up to 75% less spatter*

/ Less rework

/ Lower consumption of filler material

/ Fewer rejects

/ Less cleaning required and savings on wearing parts

Weld up to 4.5x quicker**

/ Very well suited to out-of-position welding

/ Welding in the downhand position is optimally supported by the properties of LSC

/ The powerful arc ensures optimum root formation in overhead positions

High process stability with LSC Advanced

/ Low-spatter welding with LSC Advanced, even with long hosepacks

/ Improved process stability in the intermediate arc area

/ No additional sensor line needed

* Compared to standard arc at 6 m/min wire speed, 5 mm unalloyed steel

** Compared to TIG root pass welding

Comparison of standard short circuit transfer and LSC short circuit transfer

The short circuit is triggered at a low current level, resulting in a stable welding process.

Standard short circuit transfer

LSC short circuit transfer

Standard short circuit transfer

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

LSC short circuit transfer

The digital resonant intelligence ensures an absolutely stable arc.

The benefits

Up to 75% less spatter
Reduction of rework
Fewer rejects

The right characteristic for every application

Universal

Simple, time-saving welding settings

For standard applications, with easily controllable arc

Root

Powerful arc with good gap-bridging ability

Enables simple root pass welding – even during out of-position welding in the short circuit transfer area

Galvanized

Developed for welding galvanized sheet metal parts

Lower risk of zinc porosity and reduced zinc burn-off

Braze

Characteristic for MIG/MAG brazing

High brazing speed, reliable wetting, and good flow of braze material in the short circuit transfer area

Root pass process

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

In the downward 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 thanks to the high arc pressure. With LSC Root Advanced, a rate of 25 cm/min in a downward position can even be achieved.

1) PF - Upward

2) PG – Downward

3) PH – Overhead

Comparison of results standard – LSC

1) PF - Upward

2) PG – Downward

3) PH – Overhead

Penetration stabilizer

Constant penetration with penetration stabilizer

With an activated penetration stabilizer, the welding system 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. As a result, the arc becomes much more stable and the penetration is always constant.

The benefits:

/ Improved welding quality

/ Savings in rework and additional costs

/ Ideal support in case of insufficient visibility or accessibility = stickout fluctuations are compensated for.

/ Ideal for position welding

/ Narrower opening angles can be used – saving on filler material.

More process technologies

CMT welding process

PMC welding process

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Perfect Welding

LSC Low Spatter Control

LSC process: prevent spatter - reduce rework

The advantages for you

Up to 75% less spatter*

Weld up to 4.5x quicker**

High process stability with LSC Advanced

Downloads

Comparison of standard short circuit transfer and LSC short circuit transfer

Standard short circuit transfer

LSC short circuit transfer

The right characteristic for every application

Universal

Root

Galvanized

Braze

Root pass process

Comparison of results standard – LSC

Penetration stabilizer

Constant penetration with penetration stabilizer

The benefits:

More process technologies

CMT welding process

PMC welding process

Send your non-binding request directly to Fronius

Let’s get connected.

Thank you for your message. We will process your request as soon as possible.

Welding Wiki

The encyclopedia about welding