R. Louro

TL;DR: In this paper, the influence of the plastic behavior of two aluminium alloys, very popular in welding construction, on friction stir weldability was analyzed. And the relationship between weldability, material flow during FSW and the plastic behaviour of the base materials, at different temperatures, was analyzed and compared.

TL;DR: In this article, the weldability of AA 5083-H111 and AA 6082-T6 alloys, which are widely used in welding fabrication, is compared by analysing the welds obtained from both materials under a large range of welding conditions (varying tool dimensions, rotation and traverse speeds, axial loads and tilt angles) chosen to ensure high welding speeds.

TL;DR: In this paper, the relation between base materials properties, plate thickness, welding conditions and torque evolution was explored, which constitutes a novelty relative to the previous studies on this subject, and the relations between processing parameters, classified as independent variables, and corresponding welding results, classifying as dependent variables, using torque sensitivity analysis.

TL;DR: A fuzzy classification solution for fault diagnosis of valve actuators with belongingness of the current state to the normal and/or a faulty state is described with the help of fuzzy sets.

TL;DR: A fuzzy classifier for fault diagnosis of valve actuators using fuzzy membership functions for the feature vector to be classified using fuzzy sets is described.