Plasma jets produced by direct-current (dc) non-transferred arc plasma torches, at the core of technologies ranging from spray coating to pyrolysis, present intricate dynamics due to the coupled interaction of fluid flow, thermal and electromagnetic phenomena. The flow dynamics from an arc discharge plasma jet are investigated using time-dependent three-dimensional simulations encompassing the ...

In order to improve the melting efficiency of double-TIG arc, based on synchronous induction pulsed laser double-arc, coupling-enhanced discharge phenomenon between double-arcs is studied in this paper. The laser-induced double-arc quantitatively analyzed. physical characteristics coupling are high-speed camera and spectral diagnosis technology. model established discuss particle migration duri...

Electrical discharge machining (EDM) is a non conventional manufacturing process which is used for shaping hard metals and forming deep complex shaped profiles by arc erosion in all kinds of electro-conductive materials. The objective of this paper is to study the influence of process parameters and electrode shape configuration on the machining characteristics such as surface quality, material...

The arcing duration of a switching operation is a critical input parameter in condition-based switchgear monitoring algorithms. In this paper we propose a new non-intrusive method that directly measures the duration of the electrical arc discharge during current interruption in switchgear. The method relies on coupling of the VHF electric fields generated by the arc. The required hardware used ...