Parameter optimization is the active subject of research, and in this current work ferrite number gas tungsten arc (GTA) welding SS. Filler material. Models have been developed by SD316L slab with NiTinol wire (shape memory alloy) as a filler material conducting experiments using three-factor, three level factorial designs. Tests conducted for various models at UTM results are scheduled. The fi...

This paper aims at the development of an advanced control technology for pulsed gas metal arc welding (GMAW) of titanium or other materials which require a highly stable metal transfer process. It is known that conventional pulsed GMAW achieves stable and repeatable spray transfer by using correct pulse parameters. Because the optimal pulse parameters depend on welding parameters such as wire f...

The probable reasons for evolution of weld porosity and solidification cracking and the structure- property relationship in aluminium welds were investigated. Aluminium plates (1xxx series) were welded by Tungsten Inert Gas (TIG) welding process, 5356 filler metal was used and heat input was controlled by varying welding current (145A, 175A and 195A). The welded samples were examined under opti...

This paper develops an automatic welding control scheme for alternating current shielded metal arc welding (SMAW) system. A mathematical model of the welding control system is derived and the system parameters identified. An adaptive sliding mode controller is designed to estimate the bound of the system uncertainties and to modulate the electrode feed rate in such a way that the desired arc le...

Tungsten metal arc welding (GTAW) is a highly popular technique in manufacturing. The factors such as current, voltage, speed, and gas flow rate play significant role determining the quality. This study discusses effect of GTAW on mechanical properties commercial steel welding. Base thickness, current are to be optimised for maximum tensile strength hardness by Taguchi design (TD). analysis sho...

This paper gives a recent progress of welding process research in Japan, especially, an instance in the capability of the visualization and prediction of welding arcs, though the dynamic observations of spectral image by a high-speed digital video-camera with a monochromator and also the calculations by numerical models. The dynamic observations lead to visualizations of metal vapor behavior in...