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JWJ > Volume 31(4); 2013 > Article
Journal of KWJS 2013 August;31(4) :42-46.
Published online August 31, 2013.
doi:https://doi.org/10.5781/KWJS.2013.31.4.42
Wear Resistance Evaluation of Contact Tip according to Flux Cored Wire
Dong-yoon Kim1, In-Sung Hwang1, Dong-Cheol Kim1, Moon-Jin Kang1
1Advanced Welding & Joining Group, Korea Institute of Industrial Technology, Incheon 406-840, Korea
Correspondence: In-Sung Hwang  Email: hisman@kitech.re.kr
  Published online August 31, 2013
ABSTRACT
The contact tip for flux cored arc welding has important functions to transmit the welding current to the wire and to guide the wire to molten pool. A damaged contact tip causes a productivity reduction and a welding quality problem. In this study, the welding experiments for the wear resistance of contact tip regarding flux cored wire types were performed. With two fold type and a seamless type flux cored wires, the wear rates of contact tips were compared. In addition, the wear rate was checked according to the contact tip position.
Keywords: Wear resistance | Contact tip | Flux cored wire | Wear rate | Fold type | Seamless type
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