Gas tungsten metal arc welding (GTAW) is used to study the effect of base thickness, current and speed on tensile strength hardness mild steel welding. The analysis found that thickness had highest means Taguchi’s design (TD) suggested using higher lower when in order obtain maximum hardness. has showed However, increased proportionally with internal stresses wider heat affected zone (HAZ) incr...

J. Tušek, A. Skumavc, D. Klobčar, Faculty of Mechanical Engineering, University of Ljubljana, Ljubljana, Slovenia K. Pompe, TKC-Technology Consulting Center, Ljubljana, Slovenia This paper presents the use of two welding processes for the refurbishment of damaged industrial tools. In the first part the problem is presented followed by the comparison of GTAW and laser welding in terms of repair ...

In the present work, structure health monitoring (SHM) of welded steel pipes was used to diagnosis their state via vibration based damage detection techniques. The dynamic quantities such as Frequency Response Functions (FRFs), mode shapes and modal parameters from structural vibration to detect damage were measured, set on linear averaging mode, with a maximum frequency of analysis of 3.2 kHz....