Optimization of residual stresses in mild steel specimen using manual metal arc welding process.

Welding is a fabrication technique that is used in a variety of applications all around the world. For welding ferrous materials, a variety of welding procedures and techniques were employed, including arc welding. Welding creates residual stresses that must be addressed since they can cause fractures in the specimen. An examination of such stress is required in order to take suitable precautions in order to maximize the strength and life of the welded specimen. Destructive or non-destructive testing is used to estimate residual stress during these inspections. The study of residual stress in welding joints can be done using a non-destructive analysis method. For the analysis of residual stresses, a simulation tool is used. In the simulation done, the results showed that residual stresses are dependent on the thickness of the weld and the velocity of the weld above the specimen. The relationship between residual stress and weld thickness and velocity has been investigated using real-time aspects of manual metal arc welding, characteristics simulation, and the changes in stress are studied and have been further optimized. The stress changes that occur when the velocity and thickness of the weld change have been investigated. [ABSTRACT FROM AUTHOR]