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Laser engraving-Materials that can be engraved-Metals

- Dec 14, 2018 -

Metals are heat resistant materials, marking metals requires high density laser irradiation. Basically, the average laser power leads to melting and the peak power causes evaporation of the material .

Laser on Stainless Steel (SS316L)

The best traditional engraving materials started out being the worst laser-engravable materials. This problem has now been solved using lasers at shorter wavelengths than the traditional 10,640 nm wavelength CO2 laser. Using Yb: Fiber Lasers, Nd:YVO4 or Nd:YAG lasers at 1,064 nm wavelength, or its harmonics at 532 and 355 nm, metals can now easily be engraved using commercial systems.

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