What Is Fiber Laser Cutting? | Metal Glossary | Industrial Metal Supply
Fiber laser cutting is a metal cutting process that uses a high powered laser generated through a fiber optic cable to melt and vaporize material along a programmed path. The laser is focused into a very small spot, which creates a narrow kerf and allows precise cutting of sheet and plate. An assist gas such as nitrogen, oxygen, or compressed air is usually directed at the cut to help remove molten material and influence edge quality.

Fiber lasers are widely used for cutting carbon steel, stainless steel, aluminum, brass, and copper because they are fast, accurate, and energy efficient, with strong performance on reflective metals compared with some older laser types. Like other thermal cutting methods, fiber laser cutting creates a heat affected zone and can leave minor edge oxidation depending on the material and gas selection, so the best settings depend on thickness, tolerance requirements, and the desired finish.

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