Effect Of Fiber Laser Modification On Surface Marking Of 22mnbr5 Boron Steel

Laser engraving is a method in which a laser fiber is bombarded into the material surface. This research is conducted to evaluate the effect of engraving speed, laser power and frequency on the 22MnBr5 Boron steel based on the surface roughness and hardness. Furthermore, the purpose of this research...

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Main Author:	Mohd Nor, Nurul Aini Nadirah
Format:	Thesis
Language:	English English
Published:	2020
Subjects:	T Technology (General)
Online Access:	http://eprints.utem.edu.my/id/eprint/25419/1/Effect%20Of%20Fiber%20Laser%20Modification%20On%20Surface%20Marking%20Of%2022mnbr5%20Boron%20Steel.pdf http://eprints.utem.edu.my/id/eprint/25419/2/Effect%20Of%20Fiber%20Laser%20Modification%20On%20Surface%20Marking%20Of%2022mnbr5%20Boron%20Steel.pdf
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id	my-utem-ep.25419
record_format	uketd_dc
institution	Universiti Teknikal Malaysia Melaka
collection	UTeM Repository
language	English English
advisor	Salleh, Mohd Shukor
topic	T Technology (General) T Technology (General)
spellingShingle	T Technology (General) T Technology (General) Mohd Nor, Nurul Aini Nadirah Effect Of Fiber Laser Modification On Surface Marking Of 22mnbr5 Boron Steel
description	Laser engraving is a method in which a laser fiber is bombarded into the material surface. This research is conducted to evaluate the effect of engraving speed, laser power and frequency on the 22MnBr5 Boron steel based on the surface roughness and hardness. Furthermore, the purpose of this research also to propose optimum laser parameters of 22MnBr5 Boron steel based on the surface roughness and hardness. The variable parameters which are laser power, engraving speed and laser frequency were designed using experiment design (DOE). The specimen been tested is 22MnBr5 boron steel. The sample is engraved based on the parameters extracted from the DOE. The engraved parts are analyzed in terms of surface integrity (surface roughness) and its hardness. The surface roughness is measured using a surface roughness tester whereas the Rockwell hardness tester is utilized to measure the hardness value of each engraved sample. From the response that is obtained from the experiment, the ANOVA analysis is done to identify the effect of the variable parameters on the surface roughness and hardness value. Based on the analysis, it can be concluded that all the parameters; engraving speed, laser power and frequency are significant and the range of value used are valid on the surface roughness and hardness testing. This experiment reveals that the higher the engraving speed, the smoother the surface of the engraved part. The smoothest value of surface roughness is 1.65µm value from the highest engraving speed of 4000mm/s. In addition, the analysis from RSM shows that the relationship between the parameters and the surface roughness is quadratic. Meanwhile, the linear relationship is achieved between the parameters and the hardness value. The highest hardness value of 39.91 HRC is obtained from the engraving speed of 4000mm/s. This means that the frequency did not establish major variations on the distribution of the hardness. Thus, the situation reveals that the engraving frequency parameter is the least significant compared to the engraving speed and laser power parameters.
format	Thesis
qualification_name	Master of Philosophy (M.Phil.)
qualification_level	Master's degree
author	Mohd Nor, Nurul Aini Nadirah
author_facet	Mohd Nor, Nurul Aini Nadirah
author_sort	Mohd Nor, Nurul Aini Nadirah
title	Effect Of Fiber Laser Modification On Surface Marking Of 22mnbr5 Boron Steel
title_short	Effect Of Fiber Laser Modification On Surface Marking Of 22mnbr5 Boron Steel
title_full	Effect Of Fiber Laser Modification On Surface Marking Of 22mnbr5 Boron Steel
title_fullStr	Effect Of Fiber Laser Modification On Surface Marking Of 22mnbr5 Boron Steel
title_full_unstemmed	Effect Of Fiber Laser Modification On Surface Marking Of 22mnbr5 Boron Steel
title_sort	effect of fiber laser modification on surface marking of 22mnbr5 boron steel
granting_institution	Universiti Teknikal Malaysia Melaka
granting_department	Faculty of Manufacturing Engineering
publishDate	2020
url	http://eprints.utem.edu.my/id/eprint/25419/1/Effect%20Of%20Fiber%20Laser%20Modification%20On%20Surface%20Marking%20Of%2022mnbr5%20Boron%20Steel.pdf http://eprints.utem.edu.my/id/eprint/25419/2/Effect%20Of%20Fiber%20Laser%20Modification%20On%20Surface%20Marking%20Of%2022mnbr5%20Boron%20Steel.pdf
_version_	1747834123914838016
spelling	my-utem-ep.254192021-12-07T15:17:23Z Effect Of Fiber Laser Modification On Surface Marking Of 22mnbr5 Boron Steel 2020 Mohd Nor, Nurul Aini Nadirah T Technology (General) TA Engineering (General). Civil engineering (General) Laser engraving is a method in which a laser fiber is bombarded into the material surface. This research is conducted to evaluate the effect of engraving speed, laser power and frequency on the 22MnBr5 Boron steel based on the surface roughness and hardness. Furthermore, the purpose of this research also to propose optimum laser parameters of 22MnBr5 Boron steel based on the surface roughness and hardness. The variable parameters which are laser power, engraving speed and laser frequency were designed using experiment design (DOE). The specimen been tested is 22MnBr5 boron steel. The sample is engraved based on the parameters extracted from the DOE. The engraved parts are analyzed in terms of surface integrity (surface roughness) and its hardness. The surface roughness is measured using a surface roughness tester whereas the Rockwell hardness tester is utilized to measure the hardness value of each engraved sample. From the response that is obtained from the experiment, the ANOVA analysis is done to identify the effect of the variable parameters on the surface roughness and hardness value. Based on the analysis, it can be concluded that all the parameters; engraving speed, laser power and frequency are significant and the range of value used are valid on the surface roughness and hardness testing. This experiment reveals that the higher the engraving speed, the smoother the surface of the engraved part. The smoothest value of surface roughness is 1.65µm value from the highest engraving speed of 4000mm/s. In addition, the analysis from RSM shows that the relationship between the parameters and the surface roughness is quadratic. Meanwhile, the linear relationship is achieved between the parameters and the hardness value. The highest hardness value of 39.91 HRC is obtained from the engraving speed of 4000mm/s. This means that the frequency did not establish major variations on the distribution of the hardness. Thus, the situation reveals that the engraving frequency parameter is the least significant compared to the engraving speed and laser power parameters. 2020 Thesis http://eprints.utem.edu.my/id/eprint/25419/ http://eprints.utem.edu.my/id/eprint/25419/1/Effect%20Of%20Fiber%20Laser%20Modification%20On%20Surface%20Marking%20Of%2022mnbr5%20Boron%20Steel.pdf text en public http://eprints.utem.edu.my/id/eprint/25419/2/Effect%20Of%20Fiber%20Laser%20Modification%20On%20Surface%20Marking%20Of%2022mnbr5%20Boron%20Steel.pdf text en validuser https://plh.utem.edu.my/cgi-bin/koha/opac-detail.pl?biblionumber=119593 mphil masters Universiti Teknikal Malaysia Melaka Faculty of Manufacturing Engineering Salleh, Mohd Shukor 1. Abdulhadi, H. A., Aqida, S. N. and Ismail, I. 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Effect Of Fiber Laser Modification On Surface Marking Of 22mnbr5 Boron Steel

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