Study of the laser assisted mechanical nano-polishing
碩士 === 國立成功大學 === 機械工程學系碩博士班 === 94 === Abstract The objective of this thesis is to study the laser-assisted nanopolishing phenomena of aluminum substrate with nickel particle by molecular dynamics theory, and the results are compared with experiments. The Gear’s fifth order predictor-corrector al...
Main Authors: | , |
---|---|
Other Authors: | |
Format: | Others |
Language: | zh-TW |
Published: |
2006
|
Online Access: | http://ndltd.ncl.edu.tw/handle/82363118025096760729 |
id |
ndltd-TW-094NCKU5490158 |
---|---|
record_format |
oai_dc |
spelling |
ndltd-TW-094NCKU54901582015-12-16T04:31:52Z http://ndltd.ncl.edu.tw/handle/82363118025096760729 Study of the laser assisted mechanical nano-polishing 雷射輔助奈米機械拋光之研究 Kuo-Hao Lu 呂國豪 碩士 國立成功大學 機械工程學系碩博士班 94 Abstract The objective of this thesis is to study the laser-assisted nanopolishing phenomena of aluminum substrate with nickel particle by molecular dynamics theory, and the results are compared with experiments. The Gear’s fifth order predictor-corrector algorithms is adapted to calculate the positions, velocities, and accelerations of atoms under various displacement condition while the interactions of atoms are dealt with Verlet’s neighbor lists and Morse’s potential. The numerical simulation is to study the force of nanopolishing and temperature distribution of substrate with various laser energy densities, and investigate the mechanism of nanopolishing. In the numerical simulations, it can be found:(1) The nickel particle will remove aluminum atoms of substrate during the polishing processes. (2) The laser energy will increase the temperature of workpiece surface. The heating effect can reduce the local heat affected zone. (3) The force between particle and workpiece is decreased with increasing temperature by laser irradiation. (4) The laser can improve the surface quality of workpiece. Jehnming Lin 林震銘 2006 學位論文 ; thesis 111 zh-TW |
collection |
NDLTD |
language |
zh-TW |
format |
Others
|
sources |
NDLTD |
description |
碩士 === 國立成功大學 === 機械工程學系碩博士班 === 94 === Abstract
The objective of this thesis is to study the laser-assisted nanopolishing phenomena of aluminum substrate with nickel particle by molecular dynamics theory, and the results are compared with experiments. The Gear’s fifth order predictor-corrector algorithms is adapted to calculate the positions, velocities, and accelerations of atoms under various displacement condition while the interactions of atoms are dealt with Verlet’s neighbor lists and Morse’s potential.
The numerical simulation is to study the force of nanopolishing and temperature distribution of substrate with various laser energy densities, and investigate the mechanism of nanopolishing.
In the numerical simulations, it can be found:(1) The nickel particle will remove aluminum atoms of substrate during the polishing processes. (2) The laser energy will increase the temperature of workpiece surface. The heating effect can reduce the local heat affected zone. (3) The force between particle and workpiece is decreased with increasing temperature by laser irradiation. (4) The laser can improve the surface quality of workpiece.
|
author2 |
Jehnming Lin |
author_facet |
Jehnming Lin Kuo-Hao Lu 呂國豪 |
author |
Kuo-Hao Lu 呂國豪 |
spellingShingle |
Kuo-Hao Lu 呂國豪 Study of the laser assisted mechanical nano-polishing |
author_sort |
Kuo-Hao Lu |
title |
Study of the laser assisted mechanical nano-polishing |
title_short |
Study of the laser assisted mechanical nano-polishing |
title_full |
Study of the laser assisted mechanical nano-polishing |
title_fullStr |
Study of the laser assisted mechanical nano-polishing |
title_full_unstemmed |
Study of the laser assisted mechanical nano-polishing |
title_sort |
study of the laser assisted mechanical nano-polishing |
publishDate |
2006 |
url |
http://ndltd.ncl.edu.tw/handle/82363118025096760729 |
work_keys_str_mv |
AT kuohaolu studyofthelaserassistedmechanicalnanopolishing AT lǚguóháo studyofthelaserassistedmechanicalnanopolishing AT kuohaolu léishèfǔzhùnàimǐjīxièpāoguāngzhīyánjiū AT lǚguóháo léishèfǔzhùnàimǐjīxièpāoguāngzhīyánjiū |
_version_ |
1718149191425851392 |