Effect of laser engraving parameters on surface morphology and quality on galvanized steel

Mohd Sobry, Nur Sabarina (2021) Effect of laser engraving parameters on surface morphology and quality on galvanized steel. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

	Text (24 Pages) Effect of laser engraving parameters on surface morphology and quality on galvanized steel.pdf - Submitted Version Download (314kB)
	Text (Full text) Effect of laser engraving parameters on surface morphology and quality on galvanized steel.pdf - Submitted Version Restricted to Repository staff only Download (4MB)

Abstract

This research is to study the effect of laser engraving parameters on surface morphology and quality on galvanized steel. A laser is a device that causes atoms or molecules to generate light at certain wavelengths and then amplifies that light, resulting in a very narrow beam of radiation. The emission usually only extends to a small spectrum of visible, infrared, or ultraviolet wavelengths. The main objective of this research is to analyze the effect of laser engraving parameters on surface morphology on galvanized steel, to evaluate the effect of laser engraving parameters on surface quality of on galvanized steel and to observe the quality of laser engraving on galvanized steel.The raw material used for the specimen is galvanized steel dimension 110mm x110mm x 0.5mm . There are four important parameters of laser engraving process that being recognised which are laser speed, laser power, laser frequency, and loop count. Adobe Illustrator used to create the required design for engraving process. The specimens were engraved by Fiber laser machine at the specified engraving parameters to obtain the surface morphology and quality on galvanized steel using different parameters. Additionally, surface roughness was determined using a Mitutoyo Surftest SJ301 stylus profilometer and surface characterisation was performed using a Nikon Eclipse LV100. The greatest Ra value is 1.480m at 700 mm/s, 30% and 80 kHz, while the worst average value is 1.002m at 700 mm/s, 30% and 200 kHz. As a result, the surface finish was generalised when some burn scars were present and a nice square shape was produced with and without rusting appearances (depend on parameters).

Actions (login required)

View Item