Search

The advantages of using electrodynamic treatment (EDT) of metal in the welding process as compared to EDT at room temperature were substantiated. The advantages and disadvantages of using electrode for EDT in the form of a cylindrical rod and a roller in the welding process were considered. Using the method of mathematical modeling in planar and axisymmetric statements, the effect of the shape of the electrode-indenter on stress-strain state of the welded plate from aluminum AMg6 alloy after applying the dynamic EDT component was evaluated. The features and differences of creation and use of developed mathematical models were described. The distribution of the values of the stress-strain state throughout the thickness of the plate was determined, in particular, the values of the zone of plastic deformations and stresses during interaction of the plate with the electrode-indenter moving at a speed of 5 m/s. It was found that the use of a cylindrical indenter with a hemispherical working end (axisymmetric shape) as compared to the roller (plane elongated shape) is more effective from the standpoint of optimizing the residual stress state in the plate. The use of a cylindrical indenter leads to the formation of compressive stresses in the plate with the values of up to -120 MPa. This should have a positive effect on the distribution of residual welding stresses under the action of the dynamic EDT component. 4 Ref., 3 Tabl., 7 Fig. [ABSTRACT FROM AUTHOR]

Copyright of Automatic Welding / Avtomatitcheskaia Svarka is the property of International Association Welding (Paton Publishing House) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Automatic Welding / Avtomatitcheskaia Svarka is the property of International Association Welding (Paton Publishing House) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)