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Thermal Behaviour of Pulse Current Gas Metal Arc Weld

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Pulse Current Gas Metal Arc Welding

Part of the book series: Materials Forming, Machining and Tribology ((MFMT))

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Abstract

The complex nature of heat flow behaviour due to interruption of metal deposition in pulse current gas metal arc weld which is affecting its thermal behaviour has been discussed to realise the basis of selection of pulse parameters to produce a sound weld. The thermal characteristics of P-GMA weld are critically understood through model analysis considering the influence of arc heating and super heating of filler metal under the pulse current parameters of simultaneously interactive nature. The behaviour of metal transfer under pulse current that is governing the cavity formation in weld pool and temperature distribution in weld has been described to express the mechanism of establishing the isotherm and thermal cycle of weld pool and heat affected zone of weld joint. The thermal nature of P-GMAW process has been correlated to the factor ϕ as the summarized influence of pulse parameters for better understanding of more precise control of the welding process.

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  1. Department of Metallurgical and Materials Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, India

    Prakriti Kumar Ghosh

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Ghosh, P.K. (2017). Thermal Behaviour of Pulse Current Gas Metal Arc Weld. In: Pulse Current Gas Metal Arc Welding. Materials Forming, Machining and Tribology. Springer, Singapore. https://doi.org/10.1007/978-981-10-3557-9_4

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  • DOI: https://doi.org/10.1007/978-981-10-3557-9_4

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  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-10-3556-2

  • Online ISBN: 978-981-10-3557-9

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