Synergic MIG welding of stainless steel
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The experimental study is carried out to analyze effect of various welding parameters such as Welding current, Welding speed, plate thickness and gas flow rate, on bead geometry features such as, bead reinforcement height, bead width and bead penetration of synergic MIG through voltage transients for 304L stainless steel. Various thicknesses (i.e. 3mm, 6mm, 8mm, 12mm, and 16mm) are taken with 75% Argon and 25% CO2 as the shielding gas. The mechanical strength of welds is influenced by thecomposition of metal, weld bead geometry and shape relationship. The study of weldbead geometry and shape r...
The experimental study is carried out to analyze effect of various welding parameters such as Welding current, Welding speed, plate thickness and gas flow rate, on bead geometry features such as, bead reinforcement height, bead width and bead penetration of synergic MIG through voltage transients for 304L stainless steel. Various thicknesses (i.e. 3mm, 6mm, 8mm, 12mm, and 16mm) are taken with 75% Argon and 25% CO2 as the shielding gas. The mechanical strength of welds is influenced by thecomposition of metal, weld bead geometry and shape relationship. The study of weldbead geometry and shape relationship is important as these dimensions and ratiosdecide the load bearing capacity of weldments. The design of experiment was prepared on the basis of 4 factors, 5 levels usingDesign of expert software. Response Surface Methodology was used to develop themathematical models co-relating the process parameters with the bead geometryfeatures. To identify the mode of metal transfer and the moment in which the transferoccurs is based on an oscillographical analysis of voltage (voltage versus time) by using Digital Signals Oscilloscope (DSO) with Synergic MIG machine.
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