A comparative study to investigate the influences of single component fluxes on depth-to-width ratio (DWR) oxygen free copper was carried out with novel variants tungsten inert gas (TIG) welding namely Activated TIG (A-TIG), Flux Bounded (FB-TIG) and Zoned processes. The experiments identify delivering higher DWRs in A-TIG among thirteen distinct were followed by trials FB-TIG FZ-TIG employing ...

Welding is the process of coalescence two metals/alloys for creating a seamless joint, quintessential fabrication utilised in almost every manufacturing sector. There range welding processes that are used according to their features and requirement fabricator. The tungsten inert gas (TIG) an extensively owing its inherent characteristics like high weld quality, surface cleanliness, autogenous m...

Tungsten inert gas (TIG) is currently one of the most widely applied welding technologies. However, arc energy divergence and high heat input conventional TIG can lead to defects in heat-input-sensitive alloys (such as Inconel 718). Introducing a fast-frequency pulsed current (≥20 kHz) creates process named tungsten (FFP-TIG). The behavior FFP-TIG has advantages over terms contraction, pressure...

Austenitic stainless steel SS304 grade was welded with active Tungsten Inert Gas (TIG) welding process by applying a flux paste made of SiO2 powder and acetone. SiO2 flux application improves the weld bead depth with a simultaneous reduction in weld bead width. The improvement in penetration results from arc constriction and reversal of Marangoni convection. Experimental studies revealed that t...

Understanding the joining process in real time during welding can help improve quality, reliability, and manufacturing efficiency. For this purpose, a laser ultrasonic method that detect situ quality without contact would be useful. However, behaviors of propagation as well melting with increasing temperature remain unclear. Therefore, study aimed to experimentally investigate in-process behavi...

Abstract The influence of keyhole TIG (K-TIG) welding parameters on the weld geometry and defects a new nickel-based superalloy VDM Alloy 780 alloy were investigated using statistical design experiment, microstructures heat-affected zone (HAZ) fusion (FZ) K-TIG-welded characterized. No cracks are found in FZ HAZ. Travel speed significantly influences minimum width (Wm), face root excess metal, ...

Titanium alloys have found increased applications in various industrial sectors. One of the critical issues in quality control is the weld penetration during welding. In the present paper, tungsten inert gas (TIG) welding of Ti-6Al-4V alloy with and without an activating flux was conducted. The effect of the activating flux on Ti alloy welding was investigated. A data acquisition system was use...