What is the "cold" processing of ultraviolet laser

goldlaser2022-11-3080

What is the "cold" processing of ultraviolet light?

Ultraviolet laser refers to the light whose output beam is located in the ultraviolet spectrum and invisible to the naked eye. The 355nm ultraviolet light has a very high single photon energy, which can break the molecular bonds of some materials until the materials are destroyed by non thermal processes. It does not produce heating or thermal deformation on the inner layer of the surface to be machined and the surrounding areas, nor does it cause burning, carbonization, black edge, deformation of the workpiece, so as to achieve "cold peeling" without "thermal damage". Therefore, it is considered as "cold" processing.

What are the benefits of UV "cold" processing?

The 355nm ultraviolet laser is particularly suitable for the marking application of hard and brittle thin glass, quartz, silicon chip, ceramics and other materials, as well as heat sensitive paper, polymer, carbon fiber, film and other materials. Therefore, the 355nm ultraviolet laser is competent for both metal, synthetic materials and other materials.

At the same time, 355nm ultraviolet light is easy to focus, and the focus spot is very small, reaching the micrometer level, which can bring very narrow marking linewidth, and can mark tiny marks. With high contrast and good clarity, it plays an important role in anti-counterfeiting and traceability.


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