Abstract
The article reviews the investigations of forming residual stresses and strains at arc welding by the modulated current. The maintenance of a favorable thermal cycle in a zone (that is close to a joint) is very important at welding many metals and their fusions. By changing a thermal cycle it is possible to reduce a grain value, to achieve a minimal speed of increasing elastoplastic strains in a zone of high temperature, to control a cooling rate and thus to receive favorable structures in a zone near to a joint. The numerical modeling of thermo-deformation processes of thin plates at arc welding by the modulated current is suggested in the paper. The complex of investigations depends on various technological parameters. The comparison of the received calculation data with experimental data has shown the acceptability of the positions and suppositions accepted in the design model.
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The authors wish to thank the Karaganda State Technical University of Kazakhstan for providing the experimental facilities.
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Nurguzhin, M., Danenova, G., Akhmetzhanov, T. (2019). Computer Modeling of Residual Stresses and Strains at Arc Welding by Modulated Current. In: Radionov, A., Kravchenko, O., Guzeev, V., Rozhdestvenskiy, Y. (eds) Proceedings of the 4th International Conference on Industrial Engineering. ICIE 2018. Lecture Notes in Mechanical Engineering. Springer, Cham. https://doi.org/10.1007/978-3-319-95630-5_265
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