Metal Laser Cutting Machines | High-Precision Solutions by Tianchen

Laser cutting aluminum presents specific challenges due to the material's high reflectivity to infrared light, high thermal conductivity, and tendency to form a refractory oxide layer. However, modern high-power fiber lasers with high beam brightness are exceptionally capable of cutting aluminum alloys effectively. The key is to use high power density to overcome the initial reflectivity and rapidly melt the material. Nitrogen is typically used as the assist gas to produce a clean, dross-free cut edge without oxidation. It is crucial to manage the process parameters carefully to avoid excessive dross, especially on thicker sections. Aluminum's high thermal conductivity can lead to a wider HAZ if cutting speeds are too slow. Laser cutting is ideal for creating complex parts from aluminum sheets for applications in aerospace, automotive, and electronics, where weight reduction is a priority. The process can handle a range of alloys, including series 1xxx, 3xxx, 5xxx, and 6xxx. For heat-treatable alloys, the low heat input of the fiber laser helps preserve the material's temper. We have extensive experience in optimizing parameters for various aluminum grades and thicknesses. Please contact us to discuss the best approach for cutting your specific aluminum components.