Guided wave ranging measurements offers an elegant method to localize inspection robot relative the geometric features, such as welds, of a structure under test. This paper characterizes suitability various EMAT generated guided modes when reflecting from butt welds for purpose choosing low frequency mode suitable accurate ranging. Wave were tested in 10mm mild steel plate experiment and simula...

This work is focused on understanding the significant factors affecting fatigue strength of laser-welded butt joints in thin high-strength low-alloy (HSLA) steel. The effects weld profile, imperfections, hardness, and residual stresses were considered to explain results found S-N curves four welded series. showed acceptable although series presented multiple-imperfections. analysis behavior at ...

In recent years, welding feedback control systems and weld quality estimation have been developed with the use of artificial intelligence to increase consistency robotic solutions. This paper introduces utilization an intelligent system (IWS) for controlling process. this study, GMAW process is controlled by a backpropagation neural network (NN). The input parameters; root face gap, measured la...

Argon arc welding is a frequently used process, to assist various manufacturing processes. The paper highlights the postweld experimental results of similar (EN 10025 Steel-Grade S295) and dissimilar (D36 shipbuilding steel) materials, which possess wide range applications in industries. In this work, studies are carried out for optimality gas tungsten (GTAW) parameters on butt joint with singl...

Resistance spot welding is one of the most widely used processes in sheet metal fabrication. Improvements in quality assurance are important to increase welding productivity. Until now, quality estimation was performed using dynamic resistance at the secondary circuit, which is easily measured. However, this method has many problems when applied to in-process real-time systems. In this study, w...