For welding and cutting

Lasersan®

Gas and mixtures for laser cuttingand welding.

Competence onlaser process

Cutting and welding sheet metal through the laser process requires gases and mixtures of high purity and production precision. Nippon Gases, through decades of experience in the production of gas,and in collaboration with the best manufacturers of laser systems, has developed production techniques capable of meeting the strictest requirements of manufacturers and beyond.

In our product portfolio, we have all the mixtures for laser resonators marketed with purity titles above the minimum requirements required by manufacturers of laser systems.

CO2

CO₂ has a responsibility to create light emission for the effect of energy excitation, which becomes a laser beam after polarisation.

The job of this gas is double, into the source accumulate electron to move to CO2 when It needs to maintain excitation itself, in second as protection of metal sheet during the cutting process.

CO2

CO₂ has a responsibility to create light emission for the effect of energy excitation, which becomes a laser beam after polarisation.

The job of this gas is double, into the source accumulate electron to move to CO2 when It needs to maintain excitation itself, in second as protection of metal sheet during the cutting process.

Metal reactivity

Every single material requires a
specific root protection gas.

Carbon steel, stainless steel, aluminum, titanium and
many others have metallurgical different characteristics
and a reactivity towards air.

During the laser cutting or welding phases it is essential
to protect or bring heat to allow the process, while the
absence of pollutants allows to exploit all the power of
the laser sources, whether CO2 or fiber.

CO2

CO₂ has a responsibility to create light emission for the effect of energy excitation, which becomes a laser beam after polarisation.

The job of this gas is double, into the source accumulate electron to move to CO2 when It needs to maintain excitation itself, in second as protection of metal sheet during the cutting process.

The laser cutting is constantly evolving and is moving towards high-quality applications, on a wider range of thicknesses and with good economic results, on batch processing with greater quantity of pieces.

Laser cutting

Thanks to the high focusability of the laser beams, it is possible to obtain narrow and parallel cutting edges, a very reduced thermal altered area, limited thermal distortions, ability to operate on complex profiles and with very small radii of curvature (even sharp edges).

In reality, laser cutting produces finished pieces,which do not require other complementarymanipulations (e.g. drilling of holes or other) orfinishing (e.g. sanded or other). In systems usingCO2 sources , the laser beam must be directed tothe focusing lens through mirrors. It is essentialthat no polluting substances (dust, hydrocarbonsetc.) are deposited on these components, whichcause a greater absorption of the incident power.

It is therefore important that the entire optical path, from the source to the focusing element, is hermetically closed, and a protective gas (air or nitrogen) flows in slightly overpressure. This gas must be filtered for dust (diameter <0.1 μm, density <0.1 mg / Nm3) and de-oiled (content <0.01 mg / Nm3).

Many times, the failure to comply with this condition leads to serious problems in terms of reliability of the performance of the system..

Testing

Do you still have questions?

Contact with us.

In Nippon Gases we have developed various qualities of gases to adapt to your applications. Call us or write to us and we will help you get the most out of it.