Storm Ltd

Yekaterinburg, Russia

Storm Ltd

Yekaterinburg, Russia
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Gladkov E.A.,Moscow State Technical University | Korolev S.A.,Moscow State Technical University | Babkin A.S.,Lipetsk State Technical University | Korobeinikov S.N.,Lipetsk State Technical University | Sholokhov M.A.,Storm Ltd
Welding International | Year: 2016

A method is proposed for calculating the temperature field in welding with trapezoidal oscillations of the welding arc, including the equation of the temperature field for the scheme of the moving surface heat source with normal distribution, the equation of trapezoidal oscillation in the form of the sum of Fourier series and the experimentally determined dependence of the effective radius of the heating spot of the arc r0 on the welding conditions. The dependence of the effective radius of the heating spot of the arc r0 on the welding conditions is determined by the similarity methods for welding of low-carbon and low-alloy steels in CO2 and a mixture of the gases Ar + 20% CO2. The comparison of the calculated temperatures and the results obtained in full-size experiments in welding of the pipes shows that the proposed calculation method results in sufficiently accurate determination of the temperature fields for practical applications. © 2016 Taylor & Francis


Sholokhov M.A.,Storm Ltd | Erofeev V.A.,Tula State University | Poloskov S.I.,Moscow State Technical University
Welding International | Year: 2016

The method for solving the problem of determination of the values of the parameters resulting in stable arcing in a narrow gap by the methods of computer engineering analysis is discussed and theoretical relationships, connecting the welding parameters with the dimensions of the welded joint, are presented. The technological parameters of the process are determined by solving the inverse problem of modelling the formation of the weld pool under the effect of two welding arcs in a narrow gap during successive passes. The calculations of the parameters are confirmed by the experimental results of narrow-gap multipass welding. © 2016 Taylor & Francis


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Storm LLC | Date: 2012-08-07

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