2020 №10 (04) DOI of Article
2020 №10 (06)

The Paton Welding Journal 2020 #10
TPWJ, 2020, #10, 23-30 pages

Influence of amplitude and frequency of oscillations of electrode wire in arc surfacing on formation and structure of the deposited metal and penetration of base metal

A.A. Babinets, I.O. Ryabtsev, I.P. Lentyugov, I.I. Ryabtsev, T.V. Kaida and I.L. Bogaichuk
E.O. Paton Electric Welding Institute of the NAS of Ukraine 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine. E-mail: office@paton.kiev.ua

The influence of amplitude and frequency of oscillations of electrode wire during arc surfacing on formation of deposited beads, nature of base metal penetration, as well as structural and chemical heterogeneity in the zone of the joint of deposited and base metals were studied. It was established that an increase in the frequency of oscillations of electrode wire, at the same amplitude of oscillations and rate of deposition, leads to an improvement in formation of the deposited metal and mixing of the layers in the deposited metal; formation of a more dispersed structure; narrowing of the transition zone; more uniform distribution of alloying elements; more uniform penetration and «smoothing» of the fusion boundary of the deposited and base metal. The mentioned regularities almost do not change with an increase in the amplitude of oscillations. It was established that the best formation of the deposited metal occurs at the maximum frequency N = 45 min‒1 and amplitude of oscillations of the electrode wire A = 25 mm and deposition rate Vd = 7 m/h. 8 Ref., 2 Tables, 10 Figures.
Keywords: arc surfacing, electrode wire oscillation, amplitude and frequency of oscillations, base metal penetration, deposited metal formation, deposited metal structure, structure heterogeneity

Received 09.09.2020


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