“Efeito da corrente de soldagem sobre a geometria do cordão (reforço e largura) e o impacto do aporte de calor em reparos por soldagem em estruturas engastadas”

Abstract

The welding environment is subject to several failures such as: corrosion, cracks, bites and lack of operational skills. Associated to these factors or energy directly impacts in the fusion, becoming a region of high metallurgical complexity. As fusion wells present temperature gradients and consequently affects not only the geometry of the cord, but also the dimensions of the ZAC. It is known, that different embedded structures cause attacks by the most several types of corrosion, thus the repair methods are efficient using the welding process, but that do not compromise the structural integrity of conjugated materials as no case as embedded. The main purpose of this work was to identify welding conditions using coated electrodes and repair conditions and operation. It was used three levels of welding flow in triplicate on free specimens and on specimens set in concrete with a feature established at the literature. The main result used at the performed tests identified a condition of repair welding operation at the place that allows the repair without causing damages to the structural integrity of the concrete.