During marking, these two properties can cause insufficient contrast, readability and visibility. The laser beam is in fact a beam of heat and if the heat is deterred to another location in the material very quickly, different from where the laser beam is aimed, the heat does not cause such heat changes in material sufficient to change its structure to carbonize it and to make the marking dark grey or black.

Therefore, it is necessary to set the parameters as follows:

  • Higher laser output
  • Lower scanning speed
  • Overall adjustment of pulse properties
  • Resulting in well-legible, neat marking. 



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