Calificación del proceso de soldadura GMAW (Gas Metal Arc Welding) según el código ASME sección IX con simulaciónes térmicas

摘要

The present research is about a welding process qualification for Gas Metal Arc Welding according to ASME code specifications section IX. First, welding parameters of ASME Code Section VIII and Section IX are related to mathematical simulations of a fusion welding process. It is found that thermal cycling and histories obtained from transient thermal analysis are very important for a better development of a welding qualification. With this information, the qualification of the welding process "Gas Metal Arc Welding" (GMAW) is performed by following the suggested and obligatory steps by ASME Code Section IX in order to use the welding process in the construction high pressure vessels under extreme environmental conditions. This project shows the sequence to be followed to qualify a welding procedure with the assistance of software and mathematical models to obtain accurate data and facilitate an initial set of welding parameters for any process that is used.