Scientific and Technical Journal


ISSN Print 2221-3937
ISSN Online 2221-3805

The paper deals with the control problem developed in the E.O.Paton Institute for Electric Welding by a new method of pulsed arc welding process, which uses the principle of dosed feeding of electrode wire on the basis of information on the varying parameters of arc combustion. The electrode wire is supplied by a high-speed computerized electric drive using a specially designed valve motor of an optimized design.

      Recently developed a new method of arc welding with pulse feed of an electrode wire is a metered feed, which is carried out using current or voltage feedbacks of the arc process. In this case, the control pulse is formed according to the selected (set) two levels of current or voltage and is processed by a computer control system.

       However, when implementing the control of the welding process with dosed feeding of electrode wire and some other processes of arc mechanized and automatic welding and surfacing, problems arise for further improving the speed of the electric drive.

       In this paper, it is proposed to use a method of predictive control of arc welding with a dosed by the parameter of the arc process by feeding the electrode wire to improve the performance of the controlled electric drive of the feed mechanism.

     The oscillograms of the welding process - surfacing with the identification of specific (characteristic) sections of current and voltage changes, the possibility of their linearization for selecting control parameters for the electric drive controller of the feed mechanism are considered.

    A variant of the regulator structure for the electrode wire feeding system of the mechanized welding equipment is determined using feedback signals on the parameters of the arc process.

     Comparative oscillograms of the speed of impulse movement of electrode wire, as well as weld beads for different variants of construction of the regulator of the electric drive are given. The positive effect of the new regulator on the characteristics of the arc process is noted.

       The work contains references to a number of works on the basis of which the developments described in the article are fulfilled.

  1. Landel, I. V., Maksimov, S. Yu., Lebedev, V. A, Kozyrko, O. A. (2015) Influence of impulse feed of an electrode wire on the formation and wear resistance of a plated roller, as well as the loss of electrode metal in arc surfacing in СО2[Vliyanie impul'snoj podachi ehlektrodnoj provoloki na formirovanie i iznosostojkost' naplavlennogo valika, a takzhe poteri ehlektrodnogo metalda pri dugovoj naplavke v СO2] Automatic welding. № 5‒6.       Pp. 46‒48.
  2. V. Lebedev, U. Reisgen & I. Lendel (2016) Study of technological opportunities of GMAwelding andsurfacing with pulse electrode wirefeed. Welding in the World. February. P.9.
  3. Lebedev, V. A, Zhuk, G. V. (2017) Control of the transport of electrode metal on the basis of impulse algorithms for the functioning of systems with dosing of supply of electrode wire with mechanized arc welding [Upravlenie perenosom ehlektrodnogo metala na osnove impul'snyh algoritmov funkcionirovaniya sistem s dozirovaniem podachi ehlektrodnoj provoloki pri mekhanizirovannoj dugovoj svarke] Heavy Machine-building No. 6, р.р. 27‒32.
  4. V. A Lebedev, V. V. Rymsha, I. N. Radimov (2009) Council-languages Modern valve actuators in the systems of mechanized welding equipment [Sovremennye ventil'nye ehlektroprivody v sistemah mekhanizirovan-nogo svarochnogo oborudovaniya] Electro-mechanical engineering and Electro-equipment. Issue 74, Kyiv, Engineering, p.22‒24.
  5. Pikina, G. A. (2014) Realization of the principle of control of the forecast in automatic control systems [Realizaciya principa upravleniya po prognozu v avtomaticheskih sistemah regulirovaniya] XII ALL-RUSSIAN MEETING ON THE PROBLEMS OF GOVERNMENT VSPU-2014, Moscow June 16-19, P. 200‒211.
  6. Lebedev, V. A, Guly, M. V. (2014) A fast-acting gate gear drive for the equipment of mechanized arc welding [Bystrodejstvuyushchij ventil'nyj ehlektroprivod dlya oborudovaniya mekhanizirovannoj dugovoj svarki] // Mechatronics. Automation, Management. No 6. P.47‒51.
  7. Lebedev, V. A., Dragan, S. V., Kozyrko, O. A., Novikov, S. V.( 2016) Selection of parameters of controlled oscillations of a product for structurization of welded metal under mechanized arc processes [Vybor parametrov upravlyaemyh kolebanij izdeliya dlya strukturizacii naplavlennogo metala pri mekhanizirovannyh dugovih procesah] / Strengthening technologies and coatings.. No. 12. P. 24‒30.
Last download:
24 Sept 2018

[ © KarelWintersky ] [ All articles ] [ All authors ]
[ © Odessa National Polytechnic University, 2014-2018. Any use of information from the site is possible only under the condition that the source link! ]