Desarrollo de una metodología para soldadura submarina en acero naval ASTM A 131

Abstract

This project presents a methodology in which appropriate parameters are defined for the realization of a correct procedure, also training of professional divers as welders for Terminal Maritimo de Balao. A brief introduction to welding technology, as well as the theoretical basis of the electric arc welding with coated electrode SMAW is described. Types of underwater welding are also explained and we focus primarily on the wet welding, defining everything needed to perform safely practices. A qualification of procedures and welders both on land and in water according to AWS D1.1 and D3.6 respectively AWS standards was subsequently performed. Finally, the respective tests were performed at each specimen of qualification based on the acceptance criteria presented in the standards, also a comparative analysis of the specimens obtained in the different scenarios was performed.