Research on arc cutting mechanism and procedure of flux-cored cutting wire in water
| Autor: | Jingyu Zhao, Haifeng Jia, Sergii Yuri Maksimov, Zexin Li, Wang Jianxin, Wenhang Li, Jiayou Wang |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
0209 industrial biotechnology
Materials science Torch Mechanical Engineering Process (computing) Mechanical engineering 02 engineering and technology Edge (geometry) 021001 nanoscience & nanotechnology Industrial and Manufacturing Engineering Pressure vessel Computer Science Applications law.invention Arc (geometry) Mechanism (engineering) 020901 industrial engineering & automation Flux (metallurgy) Control and Systems Engineering law Underwater 0210 nano-technology Software |
| Zdroj: | The International Journal of Advanced Manufacturing Technology. 98:2895-2904 |
| ISSN: | 1433-3015 0268-3768 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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