Utilização de um sistema de controle por oscilação magnética para a deposição de metal em passe de raiz utilizando o processo GMAW

Abstract

For years, much has been done to anticipate the problems in welding with the intention of making it a stable process, able to perform weld of parts with minimal human interference. As examples, there are the so-called synergistic equipment, those who offer metal transfer control, among others. This work studies a control system for electric arc deflection in order to encourage the deposition of droplet metal in a predetermined location. To this end, magnetic oscillation was used as a tool to promote the arc offset aiming to overcome some difficulties in implementing the root pass. As a result, it was possible to perform simulations, exploratory and controlled, welding that demonstrated the performance of the system. Its effectiveness can be confirmed through macrographs, computations results and statistics proof by analysis of chance.