Mathematical modeling for prediction and optimization of TIG welding pool geometry

Abstract

In this work, nonlinear and multi-objective mathematical models were developed to determine the process parameters corresponding to optimum weld pool geometry. The objectives of the developed mathematical models are to maximize tensile load (TL), penetration (P), area of penetration (AP) and/or minimize heat affected zone (HAZ), upper width (UW) and upper height (UH) depending upon the requirements.

Keywords

• TIG welding
• nonlinear mathematical models
• central composite design