Yahani, Mohammad Faiz (2025) Analysis of laser-marked pattern for surface Integrity of aerospace composite. Masters thesis, Universiti Teknikal Malaysia Melaka.
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Abstract
Laser marking is a specialised manufacturing method to produce accurate and durable markings on different materials, such as aerospace composites. This method uses a laser beam to create patterns, phrases, symbols, or images by etching or engraving them onto various surfaces. The method is highly relevant because of its exceptional precision, speed, and resilience, especially in the aerospace industry, where it is crucial for identifying and guaranteeing the traceability of components during their entire lifespan. This study uses laser marking technology to evaluate the effect of laser-marked patterns on the surface integrity of carbon fiber composite panels. For structural health monitoring, precise damage detection, non-destructive testing, and reliable machining and bonding techniques in aerospace applications, the capability to assure good surface quality is of the utmost importance. The major aim of this study is to optimise the laser marking settings to uphold surface integrity while retaining the essential structural features needed for aerospace applications. Although laser marking is highly efficient in creating long-lasting and precise markings, it can also cause surface defects and alter the material properties of aerospace composites. This study aims to comprehend the negative consequences and identify the most effective laser settings that improve the quality of the surface. The study specifically examines the impact of different laser power, marking speeds, and line widths on the surface properties of carbon fiber composite panels. The methodology entails the preparation of composite samples, which includes various operations such as layup, curing, cutting, and trimming. The laser marking procedure will be carried out utilising various combinations of parameters, followed by microscopic and surface roughness analyses to evaluate the marking depth and any surface imperfections. The investigation will employ digital microscopy and profilometry techniques to quantify the depth and texture of the laser markings. The work is expected to yield useful insights into the ideal laser parameters for producing aerospace composites with superior quality and long-lasting marks. The study aims to enhance performance and safety in aerospace manufacturing by examining the impact of various laser parameters on surface integrity. The findings may have substantial significance for advancing improved marking systems that guarantee the dependability and durability of aerospace components. This work addresses the current need for more understanding regarding the precise influence of laser marking settings on the surface characteristics of carbon fiber composite panels. The primary objective is to enhance marking technologies and the efficiency and dependability of aerospace composite materials in their specific uses.
| Item Type: | Thesis (Masters) |
|---|---|
| Uncontrolled Keywords: | Lasers, Lasers -- Industrial applications, Aerospace engineering |
| Divisions: | Library > Tesis > FTKM |
| Depositing User: | Norhairol Khalid |
| Date Deposited: | 18 Aug 2026 08:04 |
| Last Modified: | 18 Aug 2026 08:04 |
| URI: | http://eprints.utem.edu.my/id/eprint/30343 |
| Statistic Details: | View Download Statistic |
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