Visualizations of 2D Temperature Distribution of Molten Metal in Arc Welding Process

Tanaka, Manabu; Waki, Kenji; Tashiro, Shinichi; Nakata, Kazuhiro; Yamamoto, Eri; Yamazaki, Kei; Suzuki, Keiich

doi:https://doi.org/10.18910/4492

Visualizations of 2D Temperature Distribution of Molten Metal in Arc Welding Process

Tanaka, Manabu; Waki, Kenji; Tashiro, Shinichi et al.

Transactions of JWRI, 2009, 38(2), 1-4

Number of Access:564（2025-06-07 02:12 Counts）

Identifier to cite or link to this item: https://doi.org/10.18910/4492

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Title	Visualizations of 2D Temperature Distribution of Molten Metal in Arc Welding Process
Creator	NRID 1000020243272 1000020243272 researchmap permalink read0014392 read0014392 Scopus Author ID 25641191700 25641191700 CreatorName Tanaka, Manabu
	CreatorName Waki, Kenji
	NRID 1000070432424 1000070432424 researchmap permalink d8dshw3z d8dshw3z Scopus Author ID 15833130200 15833130200 CreatorName Tashiro, Shinichi
	NRID 1000080112069 1000080112069 CreatorName Nakata, Kazuhiro
	CreatorName Yamamoto, Eri
	CreatorName Yamazaki, Kei
	CreatorName Suzuki, Keiich
Subject	Visualization
	Arc
	Temperature
	Measurement
Abstract	In the present research, a general-purpose method for measurement and visualization of the temperature distribution of an object in arc welding, such as a tungsten electrode and a weld pool in GTA welding, and also a metal droplet and a weld pool in GMA welding, was conducted. Two-color pyrometry is utilized to obtain the temperature of the object. The object is photographed by high speed camera during arc welding. Two wave lengths (950 nm and 980 nm) in the infrared range are selected from the thermal radiation emitted from the object by using an imaging spectroscope, and the temperature is obtained from the intensity ratio of the two waves of radiation. Consequently, it was seen that in CO₂ arc welding, the 2D temperature distribution of the metal droplet is not uniform, namely, ranging from 2000 K to over 3000 K, while the 2D temperature distribution of the weld pool is more uniform, about 1800 K. It was found that there is a great difference between the temperature of the metal droplet and that of the weld pool in GMA welding process.
Publisher	大阪大学接合科学研究所
	オオサカダイガクセツゴウカガクケンキュウジョ
	Joining and Welding Research Institute, Osaka University
Source Title	Transactions of JWRI
Volume (Issue)	38(2)
Page	1-4
Date of Issued	2009-12
Language	English
Handle URL	https://hdl.handle.net/11094/4492
DOI	https://doi.org/10.18910/4492
PISSN	03874508
NCID	AA00867058
Access Rights	open access
oaire:version	Version of Record
Category	紀要論文 Departmental Bulletin Paper
Category	Transactions of JWRI / Vol.38 No.2 (2009-12)

Resource Type	departmental bulletin paper
Local Type	Departmental Bulletin Paper
DCMI Type	Text
DCTERMS.bibliographicCitation	Transactions of JWRI. 2009, 38(2), p. 1-4
DC.title	Visualizations of 2D Temperature Distribution of Molten Metal in Arc Welding Process
DC.creator	Tanaka, Manabu
	Waki, Kenji
	Tashiro, Shinichi
	Nakata, Kazuhiro
	Yamamoto, Eri
	Yamazaki, Kei
	Suzuki, Keiich
DC.publisher	大阪大学接合科学研究所
	オオサカダイガクセツゴウカガクケンキュウジョ
	Joining and Welding Research Institute, Osaka University
DC.language' scheme='DCTERMS.RFC1766	English
DC.type' scheme='DCTERMS.DCMIType	Text
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2009-12
DC.subject	Visualization
	Arc
	Temperature
	Measurement
DCTERMS.abstract	In the present research, a general-purpose method for measurement and visualization of the temperature distribution of an object in arc welding, such as a tungsten electrode and a weld pool in GTA welding, and also a metal droplet and a weld pool in GMA welding, was conducted. Two-color pyrometry is utilized to obtain the temperature of the object. The object is photographed by high speed camera during arc welding. Two wave lengths (950 nm and 980 nm) in the infrared range are selected from the thermal radiation emitted from the object by using an imaging spectroscope, and the temperature is obtained from the intensity ratio of the two waves of radiation. Consequently, it was seen that in CO₂ arc welding, the 2D temperature distribution of the metal droplet is not uniform, namely, ranging from 2000 K to over 3000 K, while the 2D temperature distribution of the weld pool is more uniform, about 1800 K. It was found that there is a great difference between the temperature of the metal droplet and that of the weld pool in GMA welding process.
DC.identifier	10.18910/4492
DC.format	4492
citation_title	Visualizations of 2D Temperature Distribution of Molten Metal in Arc Welding Process
citation_author	Tanaka, Manabu
	Waki, Kenji
	Tashiro, Shinichi
	Nakata, Kazuhiro
	Yamamoto, Eri
	Yamazaki, Kei
	Suzuki, Keiich
citation_publisher	大阪大学接合科学研究所
citation_language	English
citation_date	2009-12
citation_journal_title	Transactions of JWRI
citation_volume	38
citation_issue	2
citation_firstpage	1
citation_lastpage	4
citation_public_url	https://hdl.handle.net/11094/4492
citation_doi_detail	10.18910/4492
citation_doi	https://doi.org/10.18910/4492

Visualizations of 2D Temperature Distribution of Molten Metal in Arc Welding Process

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