Journal of Engineering Sciences

Author(s): Lebedev V. A., Novykov S. V.^*

Affilation(s): Paton Electric Welding Institute of the National Academy of Sciences of Ukraine, 11 Bozhenka St., 03680, Kyiv, Ukraine

^*Corresponding Author’s Address: [email protected]

Issue: Volume 4; Issue 2 (2017)

Dates:
Paper received: September 13, 2017
The final version of the paper received: November 25, 2017
Paper accepted online: November 28, 2017

Citation:
Lebedev V. A., Novykov S. V. (2017). The hypothesis of formation of the structure of surfaced metal at the surfacing based on the application of the prognostic algorithm of control the electrode wire speed. Journal of Engineering Sciences, Vol. 4(2), pp. B15-B18, doi: 10.21272/jes.2017.4(2).b15

DOI: 10.21272/jes.2017.4(2).b15

Research Area: Investigation of Operating Processes in Machines and Devices

Abstract: The growth of a drop in the process of surfacing by a consumable electrode is characterized by a linear dependence of the current change on time. A hypothesis has been put forward, according to which a reduction in the feed rate of the electrode wire to zero in this time interval will substantially reduce the spraying loss and improve the formation of the surfacing roller. For the implementation of which, the use of regulators with a typical law of regulation is proposed, but not according to the current value of the arc current, but according to the forecast. A key feature of these researches is a realization given surfacing process with the imposition of external mechanical oscillations with specified amplitude-frequency characteristics on the welding bath. Analytical calculation of the transfer function for the prognostic PID regulator with the simplest linear prediction taking into account the oscillation of the weld pool is given.

Keywords: prognostic regulator, welding pool oscillations, surfacing.

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