Sistema inteligente de protección local con control de temperatura para procesos de fabricación aditiva mediante arco e hilo

The present invention relates to an intelligent gas protection system for wire and arc additive manufacturing, comprising: a welding wire (5); a welding torch (3); a local protection hood (1) surrounding the space containing the part to be manufactured; a protective gas feed system (10); a solenoid valve (9) for controlling the protective gas feed system; a robotic arm, to which the welding torch (3) and the local protection hood (1) are coupled; and a temperature sensor (2). A robotic arm controller (8), connected to the solenoid valve (9) and the temperature sensor (2), sends a signal to the solenoid valve to stop the gas flow when the temperature is below a predetermined value and to move the torch and the hood in order to continue with the manufacturing. Thus, the time for which the gas must protect the manufactured part in order to prevent the oxidation thereof is regulated automatically, optimising the manufacturing time and reducing the consumption of protective gas.