Arc ignitability, bead protection and weld shape variations for He-Ar-O(2) shielded GTA welding on SUS304 stainless steel
文献类型：期刊论文
| 作者 | S. P. Lu ; H. Fujii ; K. Nogi |
| 刊名 | Journal of Materials Processing Technology
 |
| 出版日期 | 2009 |
| 卷号 | 209期号:3页码:1231-1239 |
| 关键词 | Arc ignition Weld shape Marangoni convection Oxygen Mixed shielding marangoni convection activating flux oxide fluxes deep penetration gas tig |
| ISSN号 | 0924-0136 |
| 中文摘要 | 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. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/32161]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | S. P. Lu,H. Fujii,K. Nogi. 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 | S. P. Lu,H. Fujii,&K. Nogi.(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 | S. P. Lu,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. |
入库方式： OAI收割
来源：金属研究所
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