Effect of water depth on weld quality and welding process in underwater fiber laser welding

详细信息    查看全文

• 作者：Ning Guo^a ; ^b ; ^{gn21c@126.com} ; Xiao Xing^b ; Hongyun Zhao^b ; Caiwang Tan^a ; ^b ; Jicai Feng^a ; ^b ; Zongquan Deng^c
• 关键词：Underwater laser beam welding ; Welding process ; Weld quality ; Optical fiber laser
• 刊名：Materials & Design
• 出版年：2017
• 出版时间：5 February 2017
• 年：2017
• 卷：115
• 期：Complete
• 页码：112-120
• 全文大小：2607 K
• 卷排序：115

文摘

The effect of water depth on underwater fiber laser welding were investigated without draining the welding zone. The formation of ‘beam channel’ is the key to realize the direct underwater laser beam welding. ‘Beam channel’ is formed as a result of gas pressure inside plasma exceed water pressure depending on water depth. Stability of ‘beam channel’, which gradually worsens with increasing water depth, have an terrible influence on underwater laser welding.