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Abstract
Welding of parts, assemblies or complete machines is an important process throughout the construction organizations, industries and manufacturing units. Welding of inert tungsten gas (TIG) is among the most widely used and effective welding techniques used in welding process..Essentially, TIG weld performance is highly defined by weld pool geometry that has several value responds such as bead height (BH), bead width (BW), penetration or depth of penetration (DOP), heat-affected zone (HAZ), upper width (UW), upper height (UH), tensile load (TL) and much more.Because Weld pool geometry plays a major role in deciding the weld's mechanical properties, choosing the correct welding process specifications is very important in order to achieve optimum weld pool geometry.