Alteration of copper surface by using laser engraving process for deep pattern marking

Mohamad Sofi, Muhammad Ayyub (2023) Alteration of copper surface by using laser engraving process for deep pattern marking. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

Laser engraving is a technology that has potential to be one of the promising in industry area. Laser machines are specifically designed for engraving on different types of materials, cutting, etching, and marking. The parameters in this process are really important as when a parameter changes, the outcome will become different. The larger the gap of the parameter change will show a hugely different result. Furthermore, the duration of the engraving is also important as when the duration is increased, the depth of the engraving is also increased. The main objective for this study is to investigate the effect of the parameter for the laser engrave. The other objective is to evaluate the deep pattern marking based on the laser period. Lastly, to analyze surface quality of the copper after marking process by microscopic observation The raw material used for as the specimen is copper. There are several parameters that are important for this laser engraving process that are laser loop count, laser speed, laser power and laser frequency. The main material that will be used is a plate of copper 10cm × 10cm with a thickness of 0.5mm. The parameters that change throughout the study are the frequency, the period of the engrave and the loop count of the laser. The best result among the results in this study are the one in 8 minutes duration and at the frequency of 100Hz and the loop count one. The best results are evaluated as we consider the best quality of the engravement that consist of the precision, roughness, and detailing.

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