this paper presents a new arc starter circuit that is usable in manual metal arc welding (mma) power supplies. the proposed circuit uses an auxiliary circuit and a series coupling transformer for adding high frequency spikes to output dc voltage during arc striking. the proposed circuit is usable in inverter based arc welding supplies and it could result in a decrease of weigh, volume and expen...

The article presents results of comparative A-TIG welding tests involving selected unalloyed and fine-grained steels, as well high-strength steel WELDOX 1300 austenitic stainless AISI 304L. involved the use single ingredient activated fluxes (Cr2O3, TiO2, SiO2, Fe2O3, NaF, AlF3). In cases carbon low-alloy revealed that greatest increase in penetration depth was observed steels which had been de...

Tungsten Inert Gas (TIG) welding is otherwise known as the Arc soldering (GTAW) process which when significant levels of weld quality or high precision are required, to represent an advanced arc process. However impact factors on this form important for its produced in single-pass welding. In investigation, autogenous was performed a carbon mild steel plate with four parametric variables. High ...