Measurement of dynamical variation in two-dimensional temperature distribution of TIG pulsed-arcs

H. Sawato, S. Tashiro, K. Nakata, Manabu Tanaka, E. Yamamoto, K. Yamazaki, Keiichi Suzuki
{"title":"Measurement of dynamical variation in two-dimensional temperature distribution of TIG pulsed-arcs","authors":"H. Sawato, S. Tashiro, K. Nakata, Manabu Tanaka, E. Yamamoto, K. Yamazaki, Keiichi Suzuki","doi":"10.2207/QJJWS.29.23S","DOIUrl":null,"url":null,"abstract":"TIG pulsed-arc welding is suitable for back-bead welding, thin plate welding and so on, because the heat source properties can be controlled by current waveform. The heat flux onto the base metal is affected mainly by thermal conduction and electron condensation from the arc. Both factors strongly depend on the temperature distribution and current path in the arc. In order to clarify the heat source properties of TIG pulsed-arc, dynamic variation in two-dimensional temperature distribution of TIG pulsed-arc was measured through Fowler-Milne method with a high speed video camera as a first step of the study. As a result, it was found that the arc column was expanded in radial direction and the maximum arc temperature was 20,000K during the peak current of 200A. On the other hand, the width of the arc column decreased especially in the downstream region of the arc and the maximum arc temperature fell to 17,500K during the base current of 50A.","PeriodicalId":23197,"journal":{"name":"Transactions of JWRI","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2010-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"10","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Transactions of JWRI","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.2207/QJJWS.29.23S","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 10

Abstract

TIG pulsed-arc welding is suitable for back-bead welding, thin plate welding and so on, because the heat source properties can be controlled by current waveform. The heat flux onto the base metal is affected mainly by thermal conduction and electron condensation from the arc. Both factors strongly depend on the temperature distribution and current path in the arc. In order to clarify the heat source properties of TIG pulsed-arc, dynamic variation in two-dimensional temperature distribution of TIG pulsed-arc was measured through Fowler-Milne method with a high speed video camera as a first step of the study. As a result, it was found that the arc column was expanded in radial direction and the maximum arc temperature was 20,000K during the peak current of 200A. On the other hand, the width of the arc column decreased especially in the downstream region of the arc and the maximum arc temperature fell to 17,500K during the base current of 50A.
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
TIG脉冲电弧二维温度分布动态变化的测量
TIG脉冲电弧焊适用于背焊、薄板焊接等,其热源特性可由电流波形控制。热传导和电弧产生的电子凝结主要影响基体金属的热流密度。这两个因素在很大程度上取决于电弧中的温度分布和电流路径。为了明确TIG脉冲电弧的热源特性,作为研究的第一步,利用高速摄像机采用Fowler-Milne法测量了TIG脉冲电弧二维温度分布的动态变化。结果发现,电弧柱呈径向膨胀,峰值电流为200A时最高电弧温度为20000 k。另一方面,在基极电流为50A时,电弧柱宽度减小,特别是在电弧下游区域,电弧最高温度降至17500 k。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
自引率
0.00%
发文量
0
期刊最新文献
Hybrid System for In Situ Observation of Microstructure Evolution in Steel Materials Experiment and numerical simulation in temperature distribution and welding distortion in GMA welding Experimental observation of cleaning action of cathode spots in AC TIG welding of aluminum plates Microstructure and mechanical properties of overlaying specimens in GMAW hybrid an additional longitudinal electromagnetic field Numerical analysis on effects of power source characteristics on arc properties in gas tungsten arc
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1