Study on the Essential Variable ofWelding Procedure Specification (WPS) of Fillet Weld

The technique of welding with the right variable of welding procedure is important
in determining the integrity of the weld. The objective of the project is to study the
effect of the manipulated essential variable of Welding Procedure Specification of
fillet weld on the structure which for this project is two plate of steel based on the
established welding procedure specification. The challenge in this project is to
perform the tests on the welding specimen to study the effect of manipulated
essential variable of Welding Procedure Specification (WPS). The welding voltage
of welding procedure was manipulated. Subsequently, mechanical test and non
destructive test were done to analyze the fillet welds and the findings of the study
were revealed. From the results, the higher voltage could decrease the brittleness of
the weld and increase its ductility. It also can reduce the residual stress presence in
the weld. Secondly, the higher voltage can make the weld have deeper fusion.