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Initial trials of underwater wet flux-cored wire cutting at shallow water

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Underwater cutting technology is commonly used in repairing and removement of damaged offshore steel structures. In this paper, arc stability and cut quality of flux-cored arc cutting process were investigated at shallow water.

 

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Initial trials of underwater wet flux-cored wire cutting at shallow water

LI Hongliang1, LIU Duo1,2, ZHAO Hongyun1,2, YAN Yaotian2, Liu Jinghe2

(1 State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China; 2 Shandong Provincial Key Laboratory of Special Welding Technology, Harbin Institute of Technology at Weihai, Weihai 264209, China

 

   Abstract / 摘 要    

Underwater cutting technology is commonly used in repairing and removement of damaged offshore steel structures. In this paper, arc stability and cut quality of flux-cored arc cutting process were investigated at shallow water. Gas-forming flux-cored wire and exothermic flux-cored wire were selected to evaluate its future potential use in underwater cutting process. Underwater flux-cored arc cutting process was realized using the two types of wires. Acceptable cut appearances were obtained and no local bridge emerged in two cuts. Arc stability of FCAW process for exothermic wires was superior to that for gas-forming wires because exothermic wires contains more arc stabilizers.

 

   Key words / 关键词    

underwater cutting; flux-cored arc cutting; arc stability; cutting ability

 

   About the author / 作者简介    

\

An associate professor of School of Materials Science and Engineering in Harbin Institute of Technology at Weihai since 2013. Her professional interests are in underwater wet welding and cutting, joining between ceramic and metal, dissimilar metal joining, brazing and diffusion bonding of advanced materials, et al.

Education experience:

2006.08~2009.10 Harbin Institute of Technology, Materials processing engineering, Ph.D.

2004.08~2006.08 Harbin Institute of Technology, Materials processing engineering, master.

2000.09~2004.07 Dalian University of Technology, Specialty of material forming and control engineering, bachelor.

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