In situ strain monitoring in gas tungsten arc welding processes

Zongyao Chen, Jian Chen, Zhili Feng, Yuming Zhang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations

Abstract

Strain/stress evolution during welding is essential to understand material's mechanical behavior and the formation of weld defects such as distortion, cracks and residual stresses. In-situ measurement of strain has been very challenging due to the impact from high temperature and intense arc light. In this work, a newly-developed integrated optical system was utilized to monitor material's thermal and strain field adjacent to the fusion line during GTAW process. It was found that the variation of the measurement data could be positively correlated to the change of welding parameters and the characteristics of the final weldment. The purpose of this work is to develop a real-time welding quality monitoring system to proactively prevent the formation of certain weld defects.

Original languageEnglish
Title of host publication2016 IEEE International Conference on Advanced Intelligent Mechatronics, AIM 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages800-804
Number of pages5
ISBN (Electronic)9781509020652
DOIs
StatePublished - Sep 26 2016
Event2016 IEEE International Conference on Advanced Intelligent Mechatronics, AIM 2016 - Banff, Canada
Duration: Jul 12 2016Jul 15 2016

Publication series

NameIEEE/ASME International Conference on Advanced Intelligent Mechatronics, AIM
Volume2016-September

Conference

Conference2016 IEEE International Conference on Advanced Intelligent Mechatronics, AIM 2016
Country/TerritoryCanada
CityBanff
Period07/12/1607/15/16

Funding

Research supported by US Department of Energy, Office of Nuclear Energy. This research was sponsored by the US Department of Energy, Office of Nuclear Energy, for Nuclear Energy Enabling Technologies Crosscutting Technology Development Effort, under a prime contract with Oak Ridge National Laboratory (ORNL). ORNL is managed by UT-Battelle, LLC for the U.S. Department of Energy under Contract DE-AC05-00OR22725

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