Abstract
GTAW (Gas Tungsten Arc Welding) or TIG (Tungsten Inert Gas) Welding is one of prime welding process which plays a vital role in most of the fabrication industries to weld various metals grades with various parameters. This TIG welding is most preferred because of the better joint which is produced during the process. Recent days new hybrid TIG like pulsed TIG, pulsed synergic TIG etc, comes into practice based on the applications. These TIG Welding variations comes into play because it increases the quality of weld furthermore by changing the various parameters like background current, voltage and control the heat that is generated over the process. In this paper, Pulse TIG is discussed to create an overall idea.
Highlights
The second half of the past century was marked by major advances in the field of microelectronics
According to Kumar et al (2007), the higher level is adjusted during the peak period to promote the proper formation of a molten pool, whereas in periods of background power the current is maintained at low levels, just enough to ensure that the extinction of the arc will not happen and allowing the cooling of the molten pool
According to Wu et al (1999) the reason why pulsed current TIG welding results in a finer grain structure in the weld pool is due to thermal cycle on the surface of the work piece caused by the current pulse
Summary
The second half of the past century was marked by major advances in the field of microelectronics. The application of this technology to welding sources has allowed, among other things, the development of electronic sources that are able to more efficiently control the welding variables, in particular the welding current. It is a controversial topic, works of this nature are not found in the recent literature. This is evidenced by Kumar et al (2007) who, in a report on the use of pulsed TIG process in aluminum welding, comment on the scarcity of studies on the topic of the pulse parameters. International Research Journal on Advanced Science Hub (IRJASH) (online) e-ISSN: 2582-4376
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