Effect of laser engraving parameters on surface morphology and quality on cement

Zubir, Muhamad Amirul (2021) Effect of laser engraving parameters on surface morphology and quality on cement. Project Report. Melaka, Malaysia, Universiti Teknikal Malaysia Melaka. (Submitted)

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Abstract

In today's modern age, laser engravings have become the foremost promising technologies to be utilized to engrave or mark an object. The purpose of the research is, to investigate the optimum parameter for the best engraving quality on cement. Etching is an engraving technique that involves using metal, wood, rubber, tissue, and other materials to create a design. People in ancient times used Etching as a daily tool to cut stone, metal, swords, and pots, and they have been known since the 11th century. The second objective of this research is to investigate and analyze the effect of changing laser Engraving parameters on surface morphology and quality on cement slab. The effect of laser engraving process on surface roughness measurement on cement can be determined by input parameters such as feed rate, speed, number of passes, spot diameter, laser frequency, wave length and laser power. As a result, its show that better output parameter prediction applicability and capabilities to such industrial of laser Engraving or laser marking leading to effective selection of machining parameters. 60 watts H60WPM fiber laser machine is used to complete to engrave the cement. Laser Engraving is a modern technology within the machining by exhausting materials and removes the material layer by layer. To elucidate the structure of the etched portions and to characterize the cement surface, a microscopic inspection was performed. When the settings are modified, the surface roughness of each laser material will vary. Increased laser speed and use of the best laser power for the material will result in a smoother surface roughened. The higher the speed, the smoother the surface. When the speed is lower it will be engraved in more depth. Higher speed is suitable for low hardness material and the lower speed is suitable to engrave the high hardness material.

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