Arc stability analysis of twin-wire welding using wavelet energy entropy

Kumar, Mrityunjay (2015) Arc stability analysis of twin-wire welding using wavelet energy entropy. Masters thesis, Indian Institute of Technology Hyderabad.

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Abstract

The broader aspect of this work is to convey newer observations in twin-wire gas metal arc welding. In the prior works, it has been observed that the dissimilar currents in lead and trail lead to stabilize the arc. The present work suggests that dissimilar current density in the two electrodes can also help with arc stability, resulting into a considerable influence on HAZ Hardness and aspect ratio. If the difference of current density in the lead and trail is more, the arc attains maximum stability. With the help of dissimilar wire diameter electrodes we can achieve a higher current density difference in lead and trail.

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IITH Creators:
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Item Type: Thesis (Masters)
Uncontrolled Keywords: Twin-wire welding, Arc stability, Current-voltage signals, HAZ Hardness, Wavelet energy entropy, Aspect ratio, TD421
Subjects: Others > Mechanics
Divisions: Department of Physics
Depositing User: Library Staff
Date Deposited: 31 Jul 2015 09:04
Last Modified: 31 Jul 2015 09:04
URI: http://raiith.iith.ac.in/id/eprint/1744
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