Abstract
As an efficient underwater cutting method, flux-cored arc cutting’s mechanism is not well studied because it is hard to directly observe the process. To reduce the interference from water, air cutting process was studied at first. We studied the impact of parameters on the cutting process by capturing cutting workpiece’s edge images with a high-speed camera. The results showed that the arc moved up and down and meanwhile it moved with the torch in cutting direction. Secondly, a sandwich structure was designed to observe the underwater cutting process. The characteristics of air and underwater cutting were analyzed and compared. It was found that underwater cutting process was similar to that in air. Thirdly, a pressure vessel device was used to simulate conditions at different water depths up to 100 m, and the influence of main characteristics was analyzed according to the cutting mechanism. As water pressure increases, the kerf shape becomes narrower, melting speed of cutting wire accelerates, and the stability of the arc gets worse in deep water. The relative research on cutting mechanism and process is significant to further cutting automation and engineering applications.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
Masanobu H (1982) Application of consuming electrode water jet cutting technique in underwater nuclear reactor demolition. Bull Jpn Inst Met 21
Bach W, Bienia H, Versemann R, Philipp E (2002) High-performance thermal cutting techniques for underwater use. ATW Int. Z Kernenerg 47(4):250–252
Frazer I, Fyffe L, Gibson OJ, Lucas B Remotely operated underwater thermal cutting processes for the decommissioning of large North Sea platforms. In: ASME 2002 21st international conference on offshore mechanics and Arctic engineering, 2002. pp 535–542
Paton Electric Welding Institute BWI (2007) Underwater wet welding and cutting. Beijing Petroleum Industry
Nefedov YN, Danchenko ME (1998) Technology and experience of application of underwater flux-cored wire arc semi-automatic cutting. In: Underwater wet welding and cutting. Woodhead publishing, pp 96–104
Danchenko ME (1989) Underwater arc cutting with a cored electrode. Weld Int 3:562–563
Gretskii YY, Nefedov YN (1998) Study of peculiarities of underwater flux-cored wire arc cutting without additional supply of oxygen. In: Underwater wet welding and cutting. Woodhead publishing, pp 87–95
Masanobu H, Fumikazu T, Munehide K, Yoji O (1977a) On the underwater cutting using a consumable electrode water jet technique—cutting phenomena. J Jpn Weld Soc 46:264–270
Masanobu H, Fumikazu T, Munehide K, Yoji O (1977b) On the underwater cutting using a consumable electrode water jet technique—cutting with constant voltage welder. J Jpn Weld Soc 46:548–552
Yu S, Jiang H, Yu H (1981) A study of underwater thick plate cutting technology. J Shanghai Jiaotong Univ (Natural Science Edition):43–52
Wu Y, Yu S, Jiang H, Yu H (1984) Investigation of underwater arc cutting and its technological parameters. Journal of Shanghai JiaoTong University 18(6)
Haferkamp H, Bach FW, Yoji O, Rachkov M (1994) Climbing robot for underwater cutting. Oceans IEEE 1:602–607
Yoji O (1987) Underwater cutting of thin wall stainless steel. Pre-Prints of the National Meeting of JWS Japan Welding Society
Tian X, Liu Y, Cai B, Lin R, Liu Z, Sun P (2014) Experimental investigation on electric arc cutting process for casing. Mater Manuf Process 29(29):166–174
Wang J, Shi J, Wang J, Li W, Liu C, Xu G, Maksimov SY, Zhu Q (2017) Numerical study on the temperature field of underwater flux-cored wire arc cutting process. Int J Adv Manuf Technol:1–10
Shi J, Wang J, Li W, Zhu Q (2017) Research on shape of cut cavity and microstructure of heat affected zone during underwater flux-cored wire arc cutting process. Trans China Weld Inst 38(2):97–100
Guo N, Wang M, Du Y, Guo W, Feng J (2015) Metal transfer in underwater flux-cored wire wet welding at shallow water depth. Mater Lett 144:90–92
Funding
This study received financial support from the Natural Science Foundation of China (No 51775255), Natural Science Foundation of Jiangsu Province (No. BK20171308), and the Qing Lan Project of Jiangsu province for young and middle-aged academic leaders.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Li, W., Zhao, J., Wang, J. et al. Research on arc cutting mechanism and procedure of flux-cored cutting wire in water. Int J Adv Manuf Technol 98, 2895–2904 (2018). https://doi.org/10.1007/s00170-018-2438-3
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00170-018-2438-3