Abstract
The ambient air pollution of nano- and micrometric sized particles produced during a rastering process is measured and analyzed together with the topographic measurements of the rastered surface on sheets of stainless steel samples. The rastering process performed consisted of carrying out ablation with consecutive nanosecond infrared laser pulses along parallel lines. The topographic measurements and the measurements of the air concentration of the total active surface of the nanoparticles as well as the number of micrometric particles generated during 1 min of the rastering process were measured for different adjustments of the laser power, pulse frequency, and scan velocity. Exposure to very high nanoparticulate air concentration was measured, which is a health risk that should be avoided. The laser power should be reduced as much as possible to minimize the air pollution, and by analyzing the surface finish of the rastered surfaces, it was observed that the main factor that provided the best finish qu...
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