Author:
Štefok Mislav,Kožuh Zoran,Jurica Maja,Garašić Ivica,Eržišnik Jadranka
Abstract
Modified metal transfers in MAG welding bring a number of advantages in terms of technology and operation. Likewise, it is possible to apply the same for cladding, where it is necessary to understand the influence of certain parameters. In this paper, the influence of the polarity balance of the AC MIG process on the geometrical characteristics and macrostructure during cladding of S355JR grade steel with 2205 duplex steel wire was investigated by producing three specimens with different current balances. Tests on the geometry of the welded layer as well as on the dilution rate were performed, and results indicating significant changes in geometry as a function of the change in polarity balance.
Publisher
Centre for Evaluation in Education and Science (CEON/CEES)
Reference9 articles.
1. G. R. Mohammed, M. Ishak, S. N. Aqida, and H. A. Abdulhadi (2017) :"Effects of heat input on microstructure, corrosion and mechanical characteristics of welded austenitic and duplex stainless steels: A review," Metals (Basel), vol. 7, no. 2, p. 39;
2. S. S. M. Tavaresa, .C.Scandian, J .M .Pardala, T .S. Luz, F. J. da Silva (2020): Failure analysis of duplex stainless steel weld used in flexible pipes in off shore oil production, Engineering Failure Analysis, vol 17, 1500-1506;
3. J. E. Talkington, (1998) Variable polarity gas metal arc welding. The Ohio State University;
4. A. Ikram and H. Chung, (2017): "The effect of EN ratio and current on microstructural and mechanical properties of weld joined by AC-GMAW on square groove butt joints," Applied Sciences, vol. 7, no. 3, p. 261;
5. L. O. Vilarinho, A. S. Nascimento, D. B. Fernandes, and C. A. M. Mota, (2009): "Methodology for parameter calculation of VP-GMAW: A straightforward procedure is presented for the calculation of welding parameters to reach both arc and metal transfer stability," Welding Journal, vol. 88, no. 4;