Welding Time Effect on Nugget Sizes in Resistance Spot Welding of SPA-C Steel Sheets used in Railway Vehicles
| Autor: | Erdinç Ilhan, Çağatay Teke, V. Onar, N. Akkaş, Salim Aslanlar |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
010302 applied physics
Time effect Materials science Resistance welding machines Metallurgy Rail vehicles General Physics and Astronomy Welding parameters Welding Railway vehicles Electrode force 01 natural sciences Welding specimens Welding current law.invention On-resistance law 0103 physical sciences Steel sheet Resistance spot welding 010301 acoustics Spot welding |
| Zdroj: | Acta Physica Polonica A. 134:235-237 |
| ISSN: | 0587-4246 1898-794X |
| Popis: | This paper presents an experimental study on resistance spot welding of SPA-C steel sheets used in side wall and roof in rail vehicles. SPA-C steel sheets having 2.3 mm thickness were joined by using resistance spot welding as lap joint. A timer and current controlled resistance spot welding machine having 120 kVA capacity and a pneumatic application mechanism with a single lever was used to prepare the specimens. Welding periods were chosen as 10, 15, 20, 25, and 30 cycles and also welding currents were increased from 6 kA up to 14 kA by rise of 0.5 kA. The electrode force was kept constant at 6 kN. The nugget sizes of prepared welding specimens were calculated by means of an optical microscope and the obtained results were supported by diagrams and, finally, appropriate welding parameters were advised to the users. © 2018 Polish Academy of Sciences Institute of Physics. All rights reserved. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|