New arc process for better welding
- August 18, 2014
A new algorith for Low-Spatter Control (LSC) from Fronius makes effective use of the computing power, large memory, fast system bus and dynamic wire fieed speed of the company's MIG/MAG welding platform for stable and low spatter arc.
According to the company, it has made improvements in root pass welding for "excellent root formation and a high deposition rate with reduced energy input." It also says that for the first time, it is possible to perform vertical down welding without having to accept poor fusion results, making the root pass easier for users. The new process has also reduced shielding gas loss by up to three per cent because of a new generation of welding torches.
The LSC Universal arc characteristic is especially suited to the welding of fillet welds, corner welds, lap joints as well as filling and capping runs and brazing.
LSC arc users benefit from the new penetration stabilizer. When activated, it keeps the fusion penetration constant during stick out fluctuations with the help of a new wire feed speed control, which can be adjusted as required by the user. This has a particularly positive effect on fillet welds that are to be welded in the vertical up position with an oscillating motion. The stabilizer ensures a constant and deep fusion penetration, even in the event of external interference. Very good results can be achieved even with lower cost solid wires.
Fronius has also enhanced some functions that are already supported by predecessor devices and appreciated by welders, such as arc length correction and dynamic correction. For example, the arc pressure can now be set via the dynamic correction in LSC Root.
It also offers improved functions that ensure high seam quality at the problematic start and end of welding.
To enable the use of the longer hosepacks that are commonplace in, for example, pipeline and container construction and robotic welding, Fronius has developed some additional hardware that-without compromising quality-reduces the negative influence of increased inductance in the welding circuit. The advanced versions of the LSC Root and LSC Universal arc characteristics are available for appropriately equipped power sources.