Predicting residual stresses and distortions in welding 316L stainless steel pipes using Sysweld software

Abstract

Nowadays, stainless steel is widely used in manufacturing medical
instruments and devices; pipelines, heat-resistant and corrosionresistant tanks... Welding technology is being increasingly used in the
manufacturing of products. During welding, heat is generated to melt
base metal and filler wire (if any) to form a local weld. This leads to
the formation of residual stresses and distortion which reduces the
capacity of the structure as well as creating the assembly deviation.
To predict the distribution of residual stress and distortion is a very
important task from the initial design and manufacture of the product.
This article uses SYSWELD® software to analyze and predict the
residual stress and distortion when welding two 316L stainless steel
pipes during Gas Tungsten Inert Welding (GTAW) with a diameter of
102mm and a thickness of 3mm.