| 2025 №08 (01) | 2025 №08 (03) |
The Paton Welding Journal, 2025, #8, 19-28 pages
MIAB welding technology of pipes and parts of automotive industry
V. Kachynskyi1, D. Allford2, V. Klymenko1
1E.O. Paton Electric Welding Institute of the NASU. 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine. E-mail: vskweld@gmail.com2Arc Specialties, USA 1730 Stebbins Drive, Houston, TX 77043-2807, USA
Abstract
The purpose of the research presented in this article is to develop a technology for press magnetically impelled arc butt welding (MIAB welding) using a pulsed increase in welding current and controlled precision allowance of the upset during the formation of joints of pipe steels and parts of the automotive industry. The main attention is paid to reducing energy consumption while ensuring high-quality welded joints. During welding, operational control of the main technological parameters was carried out: welding current, voltage, displacement and force at the moment of upset. To study the processes occurring in the arc gap between the ends of the pipes, high-speed video recording with a resolution of up to 4500 frames/s, as well as oscillography of the welding cycle parameters, was used. The resulting welded joints were tested in accordance with the requirements of international standards for gas and oil pipelines (API, DNV), which allowed assessinging their mechanical characteristics, reliability, and compliance with industrial application requirements.
Keywords: technology of magnetically impelled arc butt welding, radial component induction of the control magnetic field, pulsed welding current, controlled upset allowance, formation of pipe joints
Received: 09.05.2025
Received in revised form: 17.06.2025
Accepted: 22.07.2025
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