Effect of design and material of non-consumable electrodes for arc welding on their durability

Kosovich, V A; Polupan, V A; Sedykh, V.S.; Никонов, Валерий Васильевич; Панин, А. В.; Yaroviniskii, Yu L

doi:10.1080/09507119109446809

Cited by 6 publications

(1 citation statement)

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“…32 On the other hand, insufficient current level results in lack of penetration and undercutting. 33 Similarly, inadequate welding speeds result in excessive penetration and too high speeds result in undercut and lack of penetration. The formation of the weld and the mechanical properties of weld joint will be best if a low plasma gas flow rate is used with high current and high speed.…”

Section: Introductionmentioning

confidence: 99%

Optimization of process parameters for plasma arc welding of austenitic stainless steel (304 L) with low carbon steel (A-36)

Fatima

Khan

Jaffery

et al. 2015

Proceedings of the Institution of Mechanical Engineers, Part L:

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This research aims to optimize the process parameters of plasma arc welding for welding of dissimilar metals: austenitic stainless steel SS-304 L and low carbon steel A-36. It investigates the effect of welding current and welding speed on the quality of the welded joints. The quality characteristics like bead geometry, microstructure, hardness, ferrite measurement and tensile test are considered for qualification of the welded samples. Welded specimens were prepared both with and without filler material. These specimens were mechanically tested and analyzed using metallographic techniques. Based on the results, suitable welding parameters were found to be 45 A and 2 mm/s for samples prepared with and without filler wire. An all-martensitic weld zone structure was obtained for direct fusion. However, a complex heterogeneous microstructure was obtained by using austenitic stainless steel filler wire E 309 L. Hardness of directly fused sample was observed to be significantly higher compared to filler wire sample.

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Section: Introductionmentioning

confidence: 99%