Experimental investigation for optical flatness in an aluminium alloy 6061 by single point diamond turning

Optically flat components are increasing in more demand, which is hard to manufacture with high precision and accuracy. Ultra precision (SPOT) Single Point Diamond Turning Machine is used for production of these components with high vibration isolation provided by means of epoxy granite base. Thu...

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Bibliographic Details
Main Author: Surya Prabhu Mohanasundaram.
Other Authors: Sathyan Subbiah
Format: Thesis
Language:English
Published: 2013
Subjects:
Online Access:http://hdl.handle.net/10356/55147
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author Surya Prabhu Mohanasundaram.
author2 Sathyan Subbiah
author_facet Sathyan Subbiah
Surya Prabhu Mohanasundaram.
author_sort Surya Prabhu Mohanasundaram.
collection NTU
description Optically flat components are increasing in more demand, which is hard to manufacture with high precision and accuracy. Ultra precision (SPOT) Single Point Diamond Turning Machine is used for production of these components with high vibration isolation provided by means of epoxy granite base. Thus achieving accuracy less than or equal to 0.15 mirco-m and finish tolerance less than or equal to 5 om with such technique respectively. In this study, aluminium alloy 6061 of rectangular section 16x23mm is turned using single point, single crystal natural diamond tool of nose radius 0.5mm, using Precitech 4200 machine. Experiments are carried out by varying the cutting parameters such as depth of cut, feed rate, and rpm of the spindle for different experimental setup to determine the surface flatness, roughness, and waviness. Machining is undertaken with both the nose and side cutting edge of the tool, and results are compared to determine the flatness for achieving the surface roughness value between 0.5 - 0.6 fringes. On the basis of these experimental results, it is found that the side edge cutting of the tool provides the better flatness on the work piece surface than the nose edge cutting due to generation of the wiping effect phenomena by the tool. Surface measurements are made using Zygo Interferometer to determine the level of flatness. This study is of interest to companies such as QIOPTIC.
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spelling ntu-10356/551472023-03-11T17:06:08Z Experimental investigation for optical flatness in an aluminium alloy 6061 by single point diamond turning Surya Prabhu Mohanasundaram. Sathyan Subbiah School of Mechanical and Aerospace Engineering DRNTU::Engineering::Mechanical engineering Optically flat components are increasing in more demand, which is hard to manufacture with high precision and accuracy. Ultra precision (SPOT) Single Point Diamond Turning Machine is used for production of these components with high vibration isolation provided by means of epoxy granite base. Thus achieving accuracy less than or equal to 0.15 mirco-m and finish tolerance less than or equal to 5 om with such technique respectively. In this study, aluminium alloy 6061 of rectangular section 16x23mm is turned using single point, single crystal natural diamond tool of nose radius 0.5mm, using Precitech 4200 machine. Experiments are carried out by varying the cutting parameters such as depth of cut, feed rate, and rpm of the spindle for different experimental setup to determine the surface flatness, roughness, and waviness. Machining is undertaken with both the nose and side cutting edge of the tool, and results are compared to determine the flatness for achieving the surface roughness value between 0.5 - 0.6 fringes. On the basis of these experimental results, it is found that the side edge cutting of the tool provides the better flatness on the work piece surface than the nose edge cutting due to generation of the wiping effect phenomena by the tool. Surface measurements are made using Zygo Interferometer to determine the level of flatness. This study is of interest to companies such as QIOPTIC. Master of Science (Precision Engineering) 2013-12-26T06:22:07Z 2013-12-26T06:22:07Z 2013 2013 Thesis http://hdl.handle.net/10356/55147 en 87 p. application/pdf
spellingShingle DRNTU::Engineering::Mechanical engineering
Surya Prabhu Mohanasundaram.
Experimental investigation for optical flatness in an aluminium alloy 6061 by single point diamond turning
title Experimental investigation for optical flatness in an aluminium alloy 6061 by single point diamond turning
title_full Experimental investigation for optical flatness in an aluminium alloy 6061 by single point diamond turning
title_fullStr Experimental investigation for optical flatness in an aluminium alloy 6061 by single point diamond turning
title_full_unstemmed Experimental investigation for optical flatness in an aluminium alloy 6061 by single point diamond turning
title_short Experimental investigation for optical flatness in an aluminium alloy 6061 by single point diamond turning
title_sort experimental investigation for optical flatness in an aluminium alloy 6061 by single point diamond turning
topic DRNTU::Engineering::Mechanical engineering
url http://hdl.handle.net/10356/55147
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