Effect of laser power and speed on surface quality when engraving on aluminium

Ahmad, Muhammad Syukri (2022) Effect of laser power and speed on surface quality when engraving on aluminium. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

In recent years, laser engraving has become one of the most promising technologies for engraving or marking an item. The purpose of this research is to investigate the impact of laser engraving settings on the surface morphology and quality of an aluminium. The laser engraving method is applied to the surface of aluminium, and therefore, the engraving parameters are researched to produce the optimal engraving rates on aluminium. Laser engraving is a kind of machining used whenever a material is engraved using a laser. Laser engraving is the easiest method for cutting difficult materials, because it eliminates material layer by layer. For laser engraving, the most common types of industrial lasers are the carbon dioxide (CO2) laser, the neodymium-doped yttrium aluminium garnet (Nd: YAG) laser, the fibre laser, and the semiconductor laser. The purpose of this experiment is to determine the effect of technique parameters (laser power, scanning speed, and laser frequency) on material removal rate, engraving depth, and surface roughness. Aluminum is engraved with digitally created patterns during this study. The removed material layer thickness and, therefore, the material removal rate were the measured parameters that determined the method's success. Then, using the Misumi Digital Depth micrometer and a digital USB microscope, a surface roughness test will be conducted to evaluate the surface quality and microscopic of an aluminium alloy.

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