Abstract
The wire feeding system for gas metal arc welding usually consists of a wire feeder and a torch. In many industries, the distance between the wire feeder and the torch is generally 3 m to 5 m. In a conventional wire feeder, a direct current (DC) motor is used for wire feeding. However, a significant problem with this system is the impossibility of feedback control because of inner or outer impedance. In this paper, a digital wire feeder was developed by using a DC encoder motor and a push-pull torch. An optimized wire-feeding system was also developed by experiment. The welding process was observed using a high-speed camera. The resulting wire-feeding system exhibits low spatter generation and arc stability.
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Sehun Rhee received his B.S. degree in Mechanical Engineering from Hanyang University, Korea, in 1979; his M.S. degree in Mechanical Engineering Design from Seoul National University, Korea, in 1981; and his Ph.D degree in Mechanical Engineering from the University of Michigan, US, in 1990. He worked as a researcher in LG R&D Center from 1982 to 1983, and as a senior researcher in KITECH from 1991 to 1994. He has taught and conducted research in Mechanical Engineering at Hanyang University, Korea, since 1994. His research interests are focused on resistance spot welding and laser-welding monitoring system.
JongGu Kang received his B.S. degree in Mechanical Engineering from Hanyang University, Korea, in 2011. He is currently pursuing M.S. studies in Mechanical Engineering at Hanyang University, Korea. He is conducting research on the development of laser and arc welding system.
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Kang, J.G., Ryu, G.S., Kim, D.C. et al. Optimization of arc-start performance by wire-feeding control for GMA welding. J Mech Sci Technol 27, 501–509 (2013). https://doi.org/10.1007/s12206-012-1240-7
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DOI: https://doi.org/10.1007/s12206-012-1240-7