Arc ignitability, bead protection and weld shape variations for He-Ar-O-2 shielded GTA welding on SUS304 stainless steel

doi:10.1016/j.jmatprotec.2008.03.043

IMR OpenIR

	Arc ignitability, bead protection and weld shape variations for He-Ar-O-2 shielded GTA welding on SUS304 stainless steel
	Lu, Shanping 1,2; Fujii, Hidetoshi 2; Nogi, Kiyoshi 2
通讯作者	Lu, Shanping(shplu@imr.ac.cn)
	2009-02-01
发表期刊	JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
ISSN	0924-0136
卷号	209 期号:3 页码:1231-1239
摘要	The influences of argon and oxygen in helium base shielded GTA welding on the arc ignitability, bead protection and weld penetration are systematically investigated by bead-on-plate welding on SUS304 stainless steel. Experimental results show that the critical electrode tip work distance for arc ignition is increased from I mm under pure He shielding to 5 mm under He-50%Ar shielding. Small addition of oxygen content to the He-Ar mixed shielding can significantly change the weld shape from a wide shallow type to a narrow deep one, and the weld depth/width ratio can be doubled due to the change in the Marangoni convection from an outward to an inward direction. (C) 2008 Elsevier B.V. All rights reserved.
关键词	Arc ignition Weld shape Marangoni convection Oxygen Mixed shielding
资助者	New Energy and Industrial Technology Development Organization (NEDO) of Japan ; 21st Century and global COE Program ; ISIJ research promotion grant ; JFE 21st Century Foundation ; Creative Fund of Institute of Metal Research ; Chinese Academy of Science (IMR, CAS) ; Yong Research Fund of Shenyang City
DOI	10.1016/j.jmatprotec.2008.03.043
收录类别	SCI
语种	英语
资助项目	New Energy and Industrial Technology Development Organization (NEDO) of Japan ; 21st Century and global COE Program ; ISIJ research promotion grant ; JFE 21st Century Foundation ; Creative Fund of Institute of Metal Research ; Chinese Academy of Science (IMR, CAS) ; Yong Research Fund of Shenyang City
WOS研究方向	Engineering ; Materials Science
WOS类目	Engineering, Industrial ; Engineering, Manufacturing ; Materials Science, Multidisciplinary
WOS记录号	WOS:000263394000012
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：22[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/97145
专题	中国科学院金属研究所
通讯作者	Lu, Shanping
作者单位	1.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Osaka Univ, Joining & Welding Res Inst, Osaka 5670047, Japan
推荐引用方式 GB/T 7714	Lu, Shanping,Fujii, Hidetoshi,Nogi, Kiyoshi. Arc ignitability, bead protection and weld shape variations for He-Ar-O-2 shielded GTA welding on SUS304 stainless steel[J]. JOURNAL OF MATERIALS PROCESSING TECHNOLOGY,2009,209(3):1231-1239.
APA	Lu, Shanping,Fujii, Hidetoshi,&Nogi, Kiyoshi.(2009).Arc ignitability, bead protection and weld shape variations for He-Ar-O-2 shielded GTA welding on SUS304 stainless steel.JOURNAL OF MATERIALS PROCESSING TECHNOLOGY,209(3),1231-1239.
MLA	Lu, Shanping,et al."Arc ignitability, bead protection and weld shape variations for He-Ar-O-2 shielded GTA welding on SUS304 stainless steel".JOURNAL OF MATERIALS PROCESSING TECHNOLOGY 209.3(2009):1231-1239.