Study of the Best Operational Parameters in Laser Marking of Plastic Parts

Laser technology has been used more and more intensively in different areas of application, from cutting materials to medicine. More recently, this technique has also been used for labeling. However, scientific works on this topic are still very scarce. This work aimed to study the best operating parameters in the Laser Marking of Data Matrix Codes (DMCs) in plastic cases used for motorcycle instrument panels. The results showed that the best quality marking was performed using 19 W of laser power, 30 kHz of pulse frequency, 1000 mm/s of displacement speed and 30% of overlap, among a set of parameters studied around the manufacturer's initial recommendations. The quality analysis was performed using Scanning Electron Microscopy technology, seeking to obtain the best possible definition on the PBT-GF30 FR composite material.