Effect of Weld Groove Area on Distortion of Butt Welded Joints in Submerged Arc Welding

Abstract

This article describes how welding is the most prominent process for joining components into complex assemblies or structures. The various distortions induced by the welding process due to the inherent local non-uniform heating and cooling cycles associated with the joining processes. The manufacturing and shipbuilding industries encounter problems of distortion. Restriction of any distortions by restraint may lead to higher residual stresses. The predictions of the degree of shrinkage and angular distortion in ship panels due to welding are of great importance from the point of view of dimensional control. In view of this, an experimental study has been performed to analyze the effect of groove area on angular distortion, transverse and longitudinal shrinkages of butt welded joints in submerged arc welding process for constant heat input. It is observed that the angular distortion decreases with increase in the groove area but the transverse and longitudinal shrinkages increase with increase in the groove area.

Impact of Groove Area on Longitudinal Shrinkage in CO2 Arc Welding Process

“…The weld joint design is performed for an assembly that will carry out its expected work required for safety and reliability, accomplished of fabricated with respect to distortion [2]. The research has been done on the significance of groove angle in Vi-iGroove butt joints and throat thickness on longitudinal shrinkages and transverse shrinkages with constant heat input using co 2 arc welding with reference [3,4,17]. But no research has been carried out on the influence of bevel groove, double Vi-igroove and single Vi-igroove in co 2 arc welding method.…”