Study on the arc pressure of TIG welding under the condition of Ar-Ar and Ar-He supply alternately

In the paper, a self-made water-cooled copper plate device was used to measure and analyze the welding arc pressure of alternate argon supply under different frequencies of 1 Hz, 2 Hz, 4 Hz and argon and helium supply alternately under different frequencies of 1 Hz, 4 Hz. The experimental results in...

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Main Authors:	Hongbin Dai, Xiuqiang Shen, Haoran Wang
Format:	Article
Language:	English
Published:	Elsevier 2018-09-01
Series:	Results in Physics
Online Access:	http://www.sciencedirect.com/science/article/pii/S2211379718315055

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spelling	doaj-23740d78fbb04f37b0adbc9220e5ed572020-11-25T00:26:36ZengElsevierResults in Physics2211-37972018-09-0110917922Study on the arc pressure of TIG welding under the condition of Ar-Ar and Ar-He supply alternatelyHongbin Dai0Xiuqiang Shen1Haoran Wang2School of Materials Science and Engineering, Harbin University of Science and Technology, Harbin, Heilongjiang 150040, China; State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin, Heilongjiang 150001, China; Corresponding author at: School of Materials Science and Engineering, Harbin University of Science and Technology, Harbin, Heilongjiang 150040, China.School of Materials Science and Engineering, Harbin University of Science and Technology, Harbin, Heilongjiang 150040, ChinaSchool of Materials Science and Engineering, Harbin University of Science and Technology, Harbin, Heilongjiang 150040, ChinaIn the paper, a self-made water-cooled copper plate device was used to measure and analyze the welding arc pressure of alternate argon supply under different frequencies of 1 Hz, 2 Hz, 4 Hz and argon and helium supply alternately under different frequencies of 1 Hz, 4 Hz. The experimental results indicated that in the process of alternate argon supply, the maximum arc pressure produced significant fluctuation in a diameter of 1 mm range of the arc center, resulting in the molten pool surface exposed to the acting of pulsating pressure. Besides, the arc center pressure changed with the convert of argon-arc and helium-arc during argon gas and helium gas supply alternately. And the weld seam subjected the pulsating pressure from the process of argon-arc and helium-arc stroked alternately, leading to the change of welding surface formation. Furthermore, under the condition of alternating gas supply, the weld surface presented the typical distribution pattern of fish scale. Keywords: Alternate gas supply, Arc pressure, TIG weldinghttp://www.sciencedirect.com/science/article/pii/S2211379718315055
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Hongbin Dai Xiuqiang Shen Haoran Wang
spellingShingle	Hongbin Dai Xiuqiang Shen Haoran Wang Study on the arc pressure of TIG welding under the condition of Ar-Ar and Ar-He supply alternately Results in Physics
author_facet	Hongbin Dai Xiuqiang Shen Haoran Wang
author_sort	Hongbin Dai
title	Study on the arc pressure of TIG welding under the condition of Ar-Ar and Ar-He supply alternately
title_short	Study on the arc pressure of TIG welding under the condition of Ar-Ar and Ar-He supply alternately
title_full	Study on the arc pressure of TIG welding under the condition of Ar-Ar and Ar-He supply alternately
title_fullStr	Study on the arc pressure of TIG welding under the condition of Ar-Ar and Ar-He supply alternately
title_full_unstemmed	Study on the arc pressure of TIG welding under the condition of Ar-Ar and Ar-He supply alternately
title_sort	study on the arc pressure of tig welding under the condition of ar-ar and ar-he supply alternately
publisher	Elsevier
series	Results in Physics
issn	2211-3797
publishDate	2018-09-01
description	In the paper, a self-made water-cooled copper plate device was used to measure and analyze the welding arc pressure of alternate argon supply under different frequencies of 1 Hz, 2 Hz, 4 Hz and argon and helium supply alternately under different frequencies of 1 Hz, 4 Hz. The experimental results indicated that in the process of alternate argon supply, the maximum arc pressure produced significant fluctuation in a diameter of 1 mm range of the arc center, resulting in the molten pool surface exposed to the acting of pulsating pressure. Besides, the arc center pressure changed with the convert of argon-arc and helium-arc during argon gas and helium gas supply alternately. And the weld seam subjected the pulsating pressure from the process of argon-arc and helium-arc stroked alternately, leading to the change of welding surface formation. Furthermore, under the condition of alternating gas supply, the weld surface presented the typical distribution pattern of fish scale. Keywords: Alternate gas supply, Arc pressure, TIG welding
url	http://www.sciencedirect.com/science/article/pii/S2211379718315055
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Study on the arc pressure of TIG welding under the condition of Ar-Ar and Ar-He supply alternately

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