For stainless steel laser cutting, an assist gas, like oxygen or
compressed air, is generally used. The cost of laser cutting is
relatively low, but a passive film remains on the cutting plane.
It is not only bad in appearance, but also degrades the weldability.
So it takes extra time and work to remove the passive film.
Non-oxygen cutting is possible using nitrogen as the assist gas for
laser cutting. The cutting plane is clean stainless steel without a passive film.
In brief, it is possible to do clean-cut processing.
However, old systems use a nitrogen gas cylinder that is extremely
expensive and that causes product costs to increase. We introduced
a nitrogen generator, solved the problem of clean cutting and
achieved high-quality, clean, low-priced stainless steel laser cutting.