Laser fusion cutting
Laser fusion cutting is a cutting process where material is melted by a laser beam and expelled with a gas jet. This prevents chemical oxidation and produces smooth cut edges.
Physical-Chemical Mechanism of Action
Laser fusion cutting uses a high-intensity laser beam that melts the material. A gas jet (often CO2 or N2) is injected parallel to the laser beam and carries away the molten material. This process is carried out in an inert gas atmosphere to prevent chemical oxidation.
Metallurgical Relevance & Risks in Welding
Laser fusion cutting produces smooth and clean cut edges without distortion or hardening. It is particularly suitable for fine cuts and materials with high tensile strength. However, the process can get tricky if the material is not homogeneous or if the laser settings are off. This can lead to uneven cut edges or incomplete cuts.
Shop Practice & Action Guidelines
For laser fusion cutting, you need a laser cutter with the right gases (CO2 or N2). Settings like laser power, speed, and gas pressure must be set precisely. An inert gas atmosphere is essential. For fine cuts, you may need higher laser power, while for heavier materials lower power is enough. The exact setting depends on the material being cut and the desired cut quality.