Prediction of Optimum Weld Tensile Strength Using Response Surface Methodology

Metals are often subjected to various types of stresses, usually under tensile stress, quick failure material can be encouraged especially when poor combinations process parameters employed in joining the material. Tensile strength is regarded as maximum stress that a sustain tension. The aim this study predict weld tungsten inert gas (TIG) mild steel welds using Response Surface Methodology (RSM), with purpose achieving optimum results.
 input considered were current, voltage, and flow rate. TIG welding was used join two pieces plates, after which test conducted on specimen. experimental result analyzed RSM.
 Weld 596.218MPa desirability value 95.70% observed best, resulting from optimized current 120.00 Amp, voltage 20.00 volt rate 12.00 L/min.