The effect of the parameters of submerged arc surfacing with oscillating electrode on a padding weld forming, depth of fusion penetration and the content of parent metal in a weld

Abstrakt

The effect of oscillating movement amplitude and frequency of electrode wire swinging on forming of pad weld runs, the character of parent metal penetration, as well as structural and chemical inhomogeneityin the zone of intermixing padding weld with parent material has beentested while submerged arc surfacing using oscillating electrode. It has been stated that along with increasing frequency of electrode wire end oscillations and the same amplitude and surfacing speed, the weld runformation is improved, the width of the zone of padding weld intermixture with parent material is reduced and more dispersive structure with lower structural and chemical inhomogeneity in a padding weld is be- ing formed. More uniform fusion penetration into the parent material and alignment of fusion line can be observed. Those relations remain practically unchanged with increasing amplitude of oscillation.