Science and Education Publishing American Journal of Mechanical Engineering 2328-4110 4 7 2016 12 17 Impact Assessment of the Stresses in the Sheet Made by Welding 325 328 EN Patrik Šarga Technical University of Košice, Faculty of Mechanical Engineering, Letná 9, 042 00 Košice, Slovak republic Ondrej Tatarka AJME20164717 10.12691/ajme-4-7-17 2016 7 1 2016 10 19 2016 12 15 The article presents determination of residual stresses in the material caused by production processes, concretely by welding manufacturing process. In this article we analyse welding methods and their impact on the formation of residual stresses. Objects used for conducting the experiment were two samples of welded metal plates. Plates are welded by MAG method, in a controlled atmosphere of carbon dioxide gas. Evaluation process of residual stresses on this plates was made by hole-drilling method by the System MTS-3000.