Assist Gases
Assist or process gases are used at the point where the laser
interacts with the material. The choice of assist gas is extremely
important and can have a significant effect on the process
quality and productivity.
Gases for Laser-cutting |
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| Oxygen | Oxygen High Purity | Nitrogen | Argon | |
| Mild Steel | • | • | ||
| Stainless Steel | • | • | • | |
| Aluminium | • | |||
| Titanium | • | |||
Gases for Laser-welding |
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| Helium | Argon | |
| CO2 | • | •* |
| ND:YAG | • | |
| Diode | • | |
Nitrogen or compressed air are normally used for cutting non-metallic materials
*Suitable for low-power thin-sheet welding applications
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