Apply Grey Theory to Determine the Parameters of Welding Process by Using Arc Signals

Abstract

Many researchers have developed a wide range of mathematical method for predicting the weld strength by arc signals, However, These mathematical method are so complex and no good use according to the complexity of welding. This paper addresses grey analysis to analyze the arc signals. Results indicate the pulse voltage is the most important factor to the weld strength, optimal parameters can be found and the experiment also proved the conclusion. It was found that grey relational analysis is a good tool to find the most important factor to the weld strength from the processing parameters, which can instruct the actual production.