Experimental Investigation of The Effect of Welding Parameters for Metal Inert Gas Welding on Mild Steel

Abstract

A Good Quality Of Welding Focused Had Been Required, When Joining Two Pieces Of Metals Were Processed. The Changing Chemical, Physical And Thermal Properties In Order To Made Joint Bond Robust And Rigid. The Problem Mig Welding On Mild Steel Improved By Controlling Process Welding Parameters Such As Welding Current, Voltage, Standoff Distance And Arc Speed. The Goal Of This Study Was To See How Significantly Metal Inert Gas (Mig) Welding Process Parameters Affected Mechanical Properties Of A36 Mild Steel. Method Had Been Used Mathematical Model Parameters, Oa, S/N- Ratio, Anova, 95% Confidence Intervals Level, Regression Analysis For 16 Sample. The Result Had Been Investigated Optimal Parameters S/N Ratio Current 31.37%, Arc Voltage 18.66%, Travel Speed 30% And Standoff Distance 19.97% Used S/N Ratio. For Anova 25% Contribution For Each Factor And Regression Analysis Maximum Predicted Tensile Stress Was 288.9mpa, Minimum Percent Improvement For Tensile Stress Was 2.87% Maximum Value OfPercent Improvement. The Percent Difference Was From 250mpa Original Material Ts And Regression Analysis Of Process Parameter Optimum Values Combinations Were 115, 27.5, 21.125, And 13 For Current, Voltage, Travel Speed And Standoff Distance Respectively It Was A Better Hardness And Tensile Strength. Confirmation Tests Were Also Carried Out By The Welded Product Tested On Uvt Machine For Design Of Experiment After Optimum Parameter Determination Through Destructive Testing To Proposed Optimum Parameter Settings. The Finding Of Thisresearch Work Was Optimal Use Of Process Parameters On Weld Bed Products Had Been Improved Tensile Stress Was Widely Applicable And Valuable In Manufacturing Industries. S/N Ratio Voltage WasFirst, Current Second, Travel Speed Third And Standoff Distance Were The Fourth Contribution.