Abstract
Submerged arc welding (SAW) is widely used metal fabrication process commonly used to join plates of higher thickness due to its capability of high metal deposition rate. The present experiment is carried out to study the heat generation during submerged arc welding on mild steel plate while the plate temperature is at zero degree Celsius simultaneously at thirty degree Celsius plate temperature. The experiment is carried out on heavy duty mild steel of designation IS 2062 grade B. A suitable setup is fabricated to keep the plate temperature at zero degree Celsius and then bead on plate welding formed by submerged arc welding machine separately at both temperatures keeping same heat input. Taguchi‘s design of experiment is incorporated to reduce the number of experimental runs. Temperature profile is recorded by using thermocouple interfaced by data acquisition system operated by LAB VIEW software. Attributes of bead geometry of the entire sample for both the situations are measured and compared. It is established that submerged arc welding is feasible while the plate temperature is zero degree Celsius.
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