Non-contact Temperature Measurement of Stainless Steel in a TIG Welding Process

The goal of this research was to design and test an experimental setup capable of performing a TIG welding process and acquiring temperature measurements near the weld with the use of an infrared spot sensor. The data collected can then be used to validate a computer simulation that models the exact...

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Main Author: Pollard, William Nichols Jr.
Other Authors: Mechanical Engineering
Format: Others
Published: Virginia Tech 2014
Subjects:
Online Access:http://hdl.handle.net/10919/35433
http://scholar.lib.vt.edu/theses/available/etd-10192009-140307/
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spelling ndltd-VTETD-oai-vtechworks.lib.vt.edu-10919-354332020-09-26T05:35:42Z Non-contact Temperature Measurement of Stainless Steel in a TIG Welding Process Pollard, William Nichols Jr. Mechanical Engineering Duggleby, Andrew T. Ball, Kenneth S. Pierson, M.A. Temperature Measurement Non-contact TIG Welding One-color Two-color Infrared The goal of this research was to design and test an experimental setup capable of performing a TIG welding process and acquiring temperature measurements near the weld with the use of an infrared spot sensor. The data collected can then be used to validate a computer simulation that models the exact same process. An experimental setup was built, and preliminary temperature data were collected. It was determined that infrared measurements taken at the arc contain excessive amounts of interfering radiation emanating from the welding zone. The optimal angle of orientation is normal to the weld line. In this way an infrared spot sensor can be focused on an area just down weld of the arc where the temperatures remain relatively high and thermal gradients, although still large, are at a minimum. Additional data were collected from thermocouples to validate the infrared sensor results and also to provide additional data that can be compared to a computer model. Sources of error were identified and recommendations were made as to how they can be avoided or minimized. Master of Science 2014-03-14T20:46:49Z 2014-03-14T20:46:49Z 2009-10-09 2009-10-19 2013-05-20 2009-11-04 Thesis etd-10192009-140307 http://hdl.handle.net/10919/35433 http://scholar.lib.vt.edu/theses/available/etd-10192009-140307/ Pollard_WN_T_2009.pdf In Copyright http://rightsstatements.org/vocab/InC/1.0/ application/pdf Virginia Tech
collection NDLTD
format Others
sources NDLTD
topic Temperature Measurement
Non-contact
TIG Welding
One-color
Two-color
Infrared
spellingShingle Temperature Measurement
Non-contact
TIG Welding
One-color
Two-color
Infrared
Pollard, William Nichols Jr.
Non-contact Temperature Measurement of Stainless Steel in a TIG Welding Process
description The goal of this research was to design and test an experimental setup capable of performing a TIG welding process and acquiring temperature measurements near the weld with the use of an infrared spot sensor. The data collected can then be used to validate a computer simulation that models the exact same process. An experimental setup was built, and preliminary temperature data were collected. It was determined that infrared measurements taken at the arc contain excessive amounts of interfering radiation emanating from the welding zone. The optimal angle of orientation is normal to the weld line. In this way an infrared spot sensor can be focused on an area just down weld of the arc where the temperatures remain relatively high and thermal gradients, although still large, are at a minimum. Additional data were collected from thermocouples to validate the infrared sensor results and also to provide additional data that can be compared to a computer model. Sources of error were identified and recommendations were made as to how they can be avoided or minimized. === Master of Science
author2 Mechanical Engineering
author_facet Mechanical Engineering
Pollard, William Nichols Jr.
author Pollard, William Nichols Jr.
author_sort Pollard, William Nichols Jr.
title Non-contact Temperature Measurement of Stainless Steel in a TIG Welding Process
title_short Non-contact Temperature Measurement of Stainless Steel in a TIG Welding Process
title_full Non-contact Temperature Measurement of Stainless Steel in a TIG Welding Process
title_fullStr Non-contact Temperature Measurement of Stainless Steel in a TIG Welding Process
title_full_unstemmed Non-contact Temperature Measurement of Stainless Steel in a TIG Welding Process
title_sort non-contact temperature measurement of stainless steel in a tig welding process
publisher Virginia Tech
publishDate 2014
url http://hdl.handle.net/10919/35433
http://scholar.lib.vt.edu/theses/available/etd-10192009-140307/
work_keys_str_mv AT pollardwilliamnicholsjr noncontacttemperaturemeasurementofstainlesssteelinatigweldingprocess
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