Author : Hitesh Sharma, Jitender Panchal and Deepak Garg

In industries and research organizations most broadly used welding methods are shield metal arc welding (SMAW), gas metal arc welding (GMAW), gas tungsten arc welding (GTAW) and submerged arc welding (SAW). The SAW process is often preferred because it offers high production rate, high melting efficiency, ease of automation and low operator skill requirement. The purposed work is to evaluate the effect of SAW parameters for chemical analysis of weld bead. In this work the experimentation is done to analyze that which factor is most contributing towards the various element transfers in weld bead and also find the percentage of contribution of each variable factor. The aim of the present work was to study the effect of welding current, arc voltage, and weld speed on Manganese and element transfer and to optimize the process following suitable Taguchi experimental design. Beads on plate weld were deposited on SS-201 at different welding parameter combinations. During analysis of Manganese Welding current and voltage were found to be the most significant factors leading to changes in manganese element transfer. The results revealed that welding current has an appreciable influence on weld composition of Manganese element. Data investigated in this paper can be used to specify welding variables for desired manganese composition.

Keywords: Submerged arc welding, chemical composition, Taguchi design of experiment, S/N ratio, Experimental Design

Article published in International Journal of Current Engineering and Technology, Vol.7, No.2 (April-2017)