Search

Results:

Vol. 27 (2024 year), No. 4, DOI: 10.21443/1560-9278-2024-27-4

Savchuk V. S., Plekhov A. S.
Adaptation of welding transformer parameters taking into account arc output characteristics

Widely used in modern technology welding of metals is a complex technological process. To assess the quality of a welded joint and its compliance with operational requirements, mathematical modeling methods are used. The mathematical model of a pulse transformer has been developed using the Matlab Simulink software package and software modules from Schneider Electric. The output data have been verified at the manufacturing company NPK Etalon (Rostov Region, Volgodonsk), where the obtained data have been compared with the theoretical base. The mathematical model of a pulse transformer allows implementing the STT (Surface Tension Transfer – heat and mass transfer due to the mechanism of surface tension forces) welding with a deeper calibration of current power pulses with clearly defined electrical parameters. It allows as well solving the problem of switching welding modes in complex operating scenarios; it is applicable to various types of welding (contact, arc, beam, etc.).

(in Russian, стр.9, fig. 6, tables. 1, ref 11, AdobePDF, AdobePDF 0 Kb)

Vol. 28 (2025 year), No. 4, DOI: 10.21443/1560-9278-2025-28-4/1

Savchuk V. S., Plekhov A. S.
Composite electric drive of the welding electrotechnical complex

The welding process is characterized by complexity and high sensitivity to external influences, which have inertial properties. Inertial parameters in the context of welding determine the dynamic characteristics of the welding system, which affect the stability of the technological process, the quality of the formed joint, and the efficiency of equipment management. They determine the system's response to variations in welding modes, external disturbances, and transient states. To compensate for the described inertia, it has been proposed to introduce a block into the drive control system that takes into account disturbances and works to prevent this process. The electrotechnical complex (welding machine) operating with an additional proactive correction system demonstrates high stability of operating parameters, and also allows solving the problem of stability of the wire electrode departure. The cumulative effect of the introduction of a method for correcting perturbation changes will allow for an increase in welding productivity of up to 10–15 % by reducing defects and subsequent stripping of products (splashes, "glass" and traces of accidental short circuits). Further research should be aimed at improving energy efficiency, ensuring compatibility with Industry 4.0 platforms and the use of artificial intelligence technologies.

(in Russian, стр.13, fig. 11, tables. 1, ref 12, AdobePDF, AdobePDF 0 Kb)