Dynamic analysis and parametric control of ultrasonic vibration assistant machining system

Recently, ultrasonic vibration assisted machining has been looked into to improve conventional machining. However, only a few researches have been done on vibration assisted milling. Therefore, this project is done to investigate the effect of one dimensional ultrasonic vibration assisted milling on...

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Main Author: Wong, Jun Jie.
Other Authors: Lin Rongming
Format: Final Year Project
Language:English
Published: 2011
Subjects:
Online Access:http://hdl.handle.net/10356/45089
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-450892023-03-04T18:48:50Z Dynamic analysis and parametric control of ultrasonic vibration assistant machining system Wong, Jun Jie. Lin Rongming School of Mechanical and Aerospace Engineering A*STAR Singapore Institute of Manufacturing Technology DRNTU::Engineering::Mechanical engineering::Machine shop and drawings Recently, ultrasonic vibration assisted machining has been looked into to improve conventional machining. However, only a few researches have been done on vibration assisted milling. Therefore, this project is done to investigate the effect of one dimensional ultrasonic vibration assisted milling on the surface quality. Vibration motion is added to the workpiece during the milling process to achieve intermittent cutting. In theory, intermittent cutting can reduce the tool cutting forces, improve the surface finish, and extend the tool life. To verify this, a one dimensional ultrasonic vibration assisted milling system is designed. A modal analysis is first performed on the milling system to obtain its modal characteristics. Milling tests are then conducted with and without vibration assistance in the feed and cross feed direction. Machining conditions such as spindle speed, feed rate, depth of cut, width of cut and tooling configuration are varied in the milling tests. Although no positive results in terms of better surface quality have been obtained, there are some trends observed. In general, low feed rates and low spindle speeds are found to generate better surface quality. Also, ultrasonic vibration assisted milling in the feed direction produced better surface results than the cross feed direction. Some explanations are offered to support these results too. Bachelor of Engineering (Mechanical Engineering) 2011-06-09T01:25:43Z 2011-06-09T01:25:43Z 2011 2011 Final Year Project (FYP) http://hdl.handle.net/10356/45089 en Nanyang Technological University 85 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Engineering::Mechanical engineering::Machine shop and drawings
spellingShingle DRNTU::Engineering::Mechanical engineering::Machine shop and drawings
Wong, Jun Jie.
Dynamic analysis and parametric control of ultrasonic vibration assistant machining system
description Recently, ultrasonic vibration assisted machining has been looked into to improve conventional machining. However, only a few researches have been done on vibration assisted milling. Therefore, this project is done to investigate the effect of one dimensional ultrasonic vibration assisted milling on the surface quality. Vibration motion is added to the workpiece during the milling process to achieve intermittent cutting. In theory, intermittent cutting can reduce the tool cutting forces, improve the surface finish, and extend the tool life. To verify this, a one dimensional ultrasonic vibration assisted milling system is designed. A modal analysis is first performed on the milling system to obtain its modal characteristics. Milling tests are then conducted with and without vibration assistance in the feed and cross feed direction. Machining conditions such as spindle speed, feed rate, depth of cut, width of cut and tooling configuration are varied in the milling tests. Although no positive results in terms of better surface quality have been obtained, there are some trends observed. In general, low feed rates and low spindle speeds are found to generate better surface quality. Also, ultrasonic vibration assisted milling in the feed direction produced better surface results than the cross feed direction. Some explanations are offered to support these results too.
author2 Lin Rongming
author_facet Lin Rongming
Wong, Jun Jie.
format Final Year Project
author Wong, Jun Jie.
author_sort Wong, Jun Jie.
title Dynamic analysis and parametric control of ultrasonic vibration assistant machining system
title_short Dynamic analysis and parametric control of ultrasonic vibration assistant machining system
title_full Dynamic analysis and parametric control of ultrasonic vibration assistant machining system
title_fullStr Dynamic analysis and parametric control of ultrasonic vibration assistant machining system
title_full_unstemmed Dynamic analysis and parametric control of ultrasonic vibration assistant machining system
title_sort dynamic analysis and parametric control of ultrasonic vibration assistant machining system
publishDate 2011
url http://hdl.handle.net/10356/45089
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