Abstract—In this research work an attempt was made to develop a response surface model to predict tensile strength of inert gas metal arc welded AISI 1040 medium carbon steel joints. The process parameters such as welding voltage, current, wire speed and gas flow rate were studied. The experiments were conducted based on a four-factor, three-level, face centred composite design matrix. The empirical relationship can be used to predict the yield strength of inert gas metal arc welded AISI 1040 medium carbon steel. Response Surface Methodology (RSM) was applied to optimizing the MIG welding process parameters to attain the maximum yield strength of the joint.

Index Terms—AISI 1040, EN 8, Metal inert gas welding, Response surface methodology, Optimization, Yield strength

Cite: Ajit Hooda, Ashwani Dhingra, and Satpal Sharma, "Optimization of MIG Welding Process Parameters to Predict Maximum Yield Strength in AISI 1040," International Journal of Mechanical Engineering and Robotics Research, Vol.1, No.3, pp. 203-213, October 2012.