Quality Control in Welding Process

Resumen

Quality control in the welding process is very important to insure that the welded parts are strong and can with stand the mechanical loads. One major obstacle in the welding process is the generation of residual stresses, which plays an important role to determine if the welded parts are produced with good quality. Residual stresses occur in many manufactured structures and components. A large number of investigations have been carried out to study this phenomenon and its effect on the mechanical characteristics of these components.This chapter aims to classify the different quality control methods which would determine the residual stresses in the welded parts, by providing an overview of some of the recent advances in this area to help researchers on selecting their techniques among destructive, semi-destructive, and nondestructive techniques which also depend on their application and the availabilities of those techniques. For each method scope, physical limitation, advantages, and disadvantages are summarized. Some promising directions for future developments are discussed in the final section of this chapter. © 2014 Elsevier Ltd All rights reserved.