Effect of material thickness on Duration, hole characteristics, and drilling mechanism on micro-laser drilling

Recent advancement in manufacturing technology has led to the development of miniature products in the fields of automobiles, aerospace and robotics. This process involves high power intensity from the laser to break down the bond between molecules of the workpiece, hence forming a hole in the workp...

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Main Author:	Haneef, Mohd Sabki
Format:	Thesis
Language:	English
Published:	2023
Subjects:	TA Engineering (General) Civil engineering (General) TJ Mechanical engineering and machinery
Online Access:	http://umpir.ump.edu.my/id/eprint/39257/1/ir.Effect%20of%20material%20thickness%20on%20Duration%2C%20hole%20characteristics%2C%20and%20drilling%20mechanism%20on%20micro-laser%20drilling.pdf
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id	my-ump-ir.39257
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spelling	my-ump-ir.392572023-11-09T04:02:55Z Effect of material thickness on Duration, hole characteristics, and drilling mechanism on micro-laser drilling 2023-05 Haneef, Mohd Sabki TA Engineering (General). Civil engineering (General) TJ Mechanical engineering and machinery Recent advancement in manufacturing technology has led to the development of miniature products in the fields of automobiles, aerospace and robotics. This process involves high power intensity from the laser to break down the bond between molecules of the workpiece, hence forming a hole in the workpiece. However, as the material thickness increases, ablating away the material becomes more difficult and can affect the hole characteristics and the duration itself. This project aims to study the effect of material thickness on the laser duration and hole geometry of micro-drilled holes. This research also aims to analyse the mechanism of the hole formation during laser micro-drilling. The material used in this research is SS304 sheet metal with three different thicknesses, 100μm, 200μm and 300μm respectively. Besides, laser marking machine, Herolaser ML- MF-A01 IPG with 30-Watt fiber laser was used. The result showed that the size of the hole diameter for each material thickness is slightly constant for the top surface but has a decreasing value at the bottom surface which in range of 140.71μm-124.05μm. Meanwhile, the duration that needed to drill the hole for all the material thicknesses was in between 0.017s to 0.292s. In addition, the other characteristics such as hole taper, material redeposition and surface roughness have an influence on the differences in material thickness. The hole formation mechanism is generally divided into two phases, which is the drilling that has yet to be a ‘through-hole’ and the next phase is when the hole has been drilled until the bottom surface. Overall, this thesis demonstrates that laser micro-drilling may be a potential alternative to existing micro-drilling methods because duration and hole characteristics can still be considered. Furthermore, analysing the formation of the micro- hole may provide a better comprehension of this process. 2023-05 Thesis http://umpir.ump.edu.my/id/eprint/39257/ http://umpir.ump.edu.my/id/eprint/39257/1/ir.Effect%20of%20material%20thickness%20on%20Duration%2C%20hole%20characteristics%2C%20and%20drilling%20mechanism%20on%20micro-laser%20drilling.pdf pdf en public masters Universiti Malaysia Pahang Faculty of Mechanical and Automotive Engineering Technology Aiman, Mohd Halil
institution	Universiti Malaysia Pahang Al-Sultan Abdullah
collection	UMPSA Institutional Repository
language	English
advisor	Aiman, Mohd Halil
topic	TA Engineering (General) Civil engineering (General) TJ Mechanical engineering and machinery
spellingShingle	TA Engineering (General) Civil engineering (General) TJ Mechanical engineering and machinery Haneef, Mohd Sabki Effect of material thickness on Duration, hole characteristics, and drilling mechanism on micro-laser drilling
description	Recent advancement in manufacturing technology has led to the development of miniature products in the fields of automobiles, aerospace and robotics. This process involves high power intensity from the laser to break down the bond between molecules of the workpiece, hence forming a hole in the workpiece. However, as the material thickness increases, ablating away the material becomes more difficult and can affect the hole characteristics and the duration itself. This project aims to study the effect of material thickness on the laser duration and hole geometry of micro-drilled holes. This research also aims to analyse the mechanism of the hole formation during laser micro-drilling. The material used in this research is SS304 sheet metal with three different thicknesses, 100μm, 200μm and 300μm respectively. Besides, laser marking machine, Herolaser ML- MF-A01 IPG with 30-Watt fiber laser was used. The result showed that the size of the hole diameter for each material thickness is slightly constant for the top surface but has a decreasing value at the bottom surface which in range of 140.71μm-124.05μm. Meanwhile, the duration that needed to drill the hole for all the material thicknesses was in between 0.017s to 0.292s. In addition, the other characteristics such as hole taper, material redeposition and surface roughness have an influence on the differences in material thickness. The hole formation mechanism is generally divided into two phases, which is the drilling that has yet to be a ‘through-hole’ and the next phase is when the hole has been drilled until the bottom surface. Overall, this thesis demonstrates that laser micro-drilling may be a potential alternative to existing micro-drilling methods because duration and hole characteristics can still be considered. Furthermore, analysing the formation of the micro- hole may provide a better comprehension of this process.
format	Thesis
qualification_level	Master's degree
author	Haneef, Mohd Sabki
author_facet	Haneef, Mohd Sabki
author_sort	Haneef, Mohd Sabki
title	Effect of material thickness on Duration, hole characteristics, and drilling mechanism on micro-laser drilling
title_short	Effect of material thickness on Duration, hole characteristics, and drilling mechanism on micro-laser drilling
title_full	Effect of material thickness on Duration, hole characteristics, and drilling mechanism on micro-laser drilling
title_fullStr	Effect of material thickness on Duration, hole characteristics, and drilling mechanism on micro-laser drilling
title_full_unstemmed	Effect of material thickness on Duration, hole characteristics, and drilling mechanism on micro-laser drilling
title_sort	effect of material thickness on duration, hole characteristics, and drilling mechanism on micro-laser drilling
granting_institution	Universiti Malaysia Pahang
granting_department	Faculty of Mechanical and Automotive Engineering Technology
publishDate	2023
url	http://umpir.ump.edu.my/id/eprint/39257/1/ir.Effect%20of%20material%20thickness%20on%20Duration%2C%20hole%20characteristics%2C%20and%20drilling%20mechanism%20on%20micro-laser%20drilling.pdf
_version_	1783732303811313664

Effect of material thickness on Duration, hole characteristics, and drilling mechanism on micro-laser drilling

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