Vol. 4, Issue 1 (2019)
Multi objective optimization of spot welding process parameters using composite desirability function method
Author(s): Shweta Sharma, Raghav Singh Dhaker, Nidhi Sharma
Abstract: Spot welding is a process to joint two material using resistance heat developed by electrical resistance in these pieces. This method us generally used in automobile industry to improve its productivity. In present research study three process parameters are selected for optimization of response parameters developed by spot welding technique. The three factors are peak voltage, welding time and welding cycle. Each factor has three levels. The experiment table is generated using Taguchi method. The orthogonal array developed for this research work is L9. In present research work Al alloy (7475-T761) used for joining the two pieces. All pieces are cut as per standard provided by various research papers. Two response parameters are selected for this research study which is tensile strength and micro hardness of joint pieces. In present research work signal to noise ratio analysis is performed for both response parameters. After S/N ratio analysis, optimal solution calculation is performed using Taguchi analysis and Roy formulation technique. In present research work model equations are also developed and then Multi objective optimization is also performed for this research work.