JWJ > Volume 31(3); 2013 > Article
Journal of KWJS 2013 June;31(3) :39-43.
Published online July 10, 2013.
doi:https://doi.org/10.5781/KWJS.2013.31.3.39
Development of Push-pull Type Arc Welding Wire Feeder
Hyun-Jun Yoon, In-Sung Hwang, Dong-Cheol Kim, Moon-Jin Kang, Ki-Gab Choi
HANTO Co, Ltd, Gimhae 621-813, Korea
Advanced Welding & Joining Group, Korea Institute of Industrial Technology, Incheon 406-840, Korea
Correspondence: In-Sung Hwang  Email: hisman@kitech.re.kr
  Published online July 10, 2013
ABSTRACT
It is difficult to feed welding wire stably, when the distance between welding wire feeder and welding torch is far enough. In order to solve this problem, arranging a extension wire feeder between them could be one of useful methods. However, the welding wire could be twisted up in the extension cable between extension and terminal wire feeders in the case that RPM of extension wire feeding motor is higher than that of terminal motor. In this study, feeding problem of normal push-pull wire feeding system occurred at low welding current range less than 250A. In order to solve the problem, two new wire feeding systems of push-pull type were introduced. Welding wire feeding tests were preformed in the range of 150A to 400A with the developed push-pull feeding system. In addition, weldability test was performed at the welding current of 200A, 300A, and 400A. The welding wire twisting problem that was observed in the normal feeding system did not occur in the new push-pull wire feeding system.
Keywords: Arc welding | Welding wire | Wire feeder | Push-pull type feeder | Welding torch
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