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Influence of welding current in resistance spot welding on the properties of Zn coated steel DX51D |
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| รหัสดีโอไอ | |
| Creator | 1. Lubos Kascak 2. Jan Vinas 3. Rudolf Misicko |
| Title | Influence of welding current in resistance spot welding on the properties of Zn coated steel DX51D |
| Publisher | Research and Development Office, Prince of Songkla University |
| Publication Year | 2559 |
| Journal Title | Songklanakarin Journal of Science and Technology (SJST) |
| Journal Vol. | 38 |
| Journal No. | 3 |
| Page no. | 237-242 |
| Keyword | spot welding,quality evaluation,tensile test,metallographic analysis |
| ISSN | 0125-3396 |
| Abstract | The paper deals with the resistance spot welding of three galvanized car body sheets DX51D + Z - EN 10142/2000.The quality of welded joints was evaluated by destructive tests and non-destructive tests. For evaluation of joints quality theshear tension test on spot joints according to DIN 50 124 standard was used. The influence of welding parameters on thestructure of a welded joint was observed by metallographic analysis. Influence of welding current from 6.0 to 7.7 kA andinfluence of welding time from 10 to 12 periods on weld properties was observed. Increasing the welding current led toincreased load-bearing capacity of the welded joints. The spot welded joints without any internal defects occurred in sampleswelded up to 7.0 kA. Increasing the welding time to 12 periods led to increased load-bearing capacity of the welded joints,within all observed values of welding current. |
