Effect of Heat Source Positioning on Hybrid TIG-MAG Arc Welding Process

Analytic framework on parameter ranking for hybrid TIG MAG arc welding of mild steel

“…4. Sahasrabudhe et al [9], [10] have studied arc positioning parameters through a set of experiments alongside the arc energy parameters for their collective impact on the process outcome in terms of the bead profile and the depth of weld penetration. As shown in Fig.…”

“…rankings of the process controlling parameters by using MCDM algorithms. The study uses the available data from Sahasrabudhe et al [9], [10] on the parameter effects and ranges for hybrid TIG-MAG arc welding.…”

“…As shown in the schematics, two separate power sources are deployed each for the leading TIG and the tailing MAG in tandem. Sahasrabudhe et al [10] have studied the devised process for their parameter interactions vis-à-vis the process outcome in terms of the depth of the weld penetration, the transverse strength of the welded joint and the bead profile for the mild steel plates of 12 mm thickness. Hybridization as the name suggests is the expected synergy in arc interaction for the conceived hybrid TIG-MAG arc welding process.…”

“…Hybridization as the name suggests is the expected synergy in arc interaction for the conceived hybrid TIG-MAG arc welding process. Sahasrabudhe et al [9], [10] seek motivation in harnessing the benefits of the leading non-consumable electrode in tandem with the tailing consumable electrode. The leading TIG preheats the base material and creates a common weld puddle to be traced by the tailing MAG deposition.…”

“…The matrices with consistency ratio values of <0.1 have been accepted for the subsequent computations.

Fig. 1Hybrid TIG MAG arc welding (a) process schematics (b) fixture [9], [10].

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