The Paton Welding Journal, 2022, №09



2022 №09 (07)

DOI of Article 10.37434/tpwj2022.09.08

2022 №09 (09)

---

The Paton Welding Journal, 2022, #9, 47-50 pages

High performance equipment for tandem ММА welding (surfacing)

M.P. Drachenko, O.E. Korotynskyi

E.O. Paton Electric Welding Institute of the NAS of Ukraine 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine. E-mail: office@paton.kiev.ua

Abstract
In the paper special attention is given to application of pulsed-arc tandem welding by coated electrodes. Mock-ups of equipment for tandem welding and surfacing were developed and studied. A scheme was proposed for tandem arc welding by stick coated electrodes, fitted with capacitive energy storage devices, as well as a device-attachment that allows using any welding current source to perform this kind of welding operations. The attachment operation is based on the principle of controlling the electrode melting rate that ensures their uniform mutual burnout. Also shown are time diagrams, which clarify the principle of operation of the device, photos of surfaced samples, oscillograms of currents supplied to the welding electrodes. 7 Ref., 8 Fig.
Keywords: tandem arc welding, capacitive energy storage devices, pulse-time regulation of electrode melting rate

Received: 29.05.2022
Accepted: 11.11.2022

References

1. Dilthey, U., Stein, L., Woeste, K., Reich, F. (2003) Latest development and trends in high-effi cient welding technologies. The Paton Welding J., 10-11, 146-152.
2. Ueyama, T., Ohnawa, T., Yamazaki, K. et al. (2005) Highspeed welding of steel sheets by the tandem pulsed gas metal arc welding system. Transact. of JWRI, 34(1), 11–18.
3. Tsybulkin, G.A. (2018) Effect of own magnetic fields on electric arcs in tandem-arc welding. The Paton Welding J., 3, 12-15. https://doi.org/10.15407/tpwj2018.03.02
4. (2021) Welding by several electrodes. Ukraine. https://msd. com.ua/svarka/
5. Knyazkov, A.F., Saraev, Yu.N., Timoshenko, A.K., Kolesin, S.A. (1983) Method of twin-electrode welding with short circuits of arc gap and device for its realization. RF Patent 998039 [in Russian].
6. Korotynskyi, O.E., Skopyuk, M.I., Drachenko, M.P. (2020) Power source for tandem arc MMA welding. Patent on utility model 140340, Ukraine [in Ukrainian].
7. Korotynsky, A.E. (2002) State-of-the-art, tendencies and prospects of development of high-speed welding converters (Review). The Paton Welding J., 7, 36-37.

---