Study on output response of submerged arc welding process

Abstract

Study on heat affected zone (HAZ) width is very essential for getting required weld quality. Minimization of HAZ width is urgent for high quality of weld. In present paper, an attempt has been made to find out relationship between process control factors and HAZ width. Optimum setting of processes parameters for getting minimum HAZ width with the help of Lagrangien multiplier method has also been attempted. Interaction effect of processes parameters on HAZ width have also been presented in graphical form. Good approximation of estimated HAZ width(s) has been revealed by comparing estimated and measured data.

Keywords

• HAZ width
• optimization through Lagrangien multiplier method
• regression model
• submerged arc welding process