THE ANALYSIS OF THE OCCURRENCE OF DEFECTS AND DISCONTINUITIES IN THE REW WELD OF DP STEEL AND ALUMINUM ALLOY
Учитавање...
Датум
2023
Наслов журнала
Журнал ISSN
Наслов волумена
Издавач
Društvo za tehniku zavarivanja Slavonski Brod
Апстракт
Resistance element welding (REW) was developed as an alternative technology for joining dissimilar materials that are difficult to weld with RSW (Resistance spot welding) technology. This technology does not require significant modification of existing equipment in a factory, which is its great advantage. This paper analyzes the occurrence of defects and discontinuities in the REW weld of DP steel and aluminum alloy. Analysis of the macrostructure and analysis of the fractography of the joint were used to detect defects and discontinuities. The following defects and discontinuities are observed: Expulsion of aluminum, asymmetrical spot weld nugget and cracks in the weld area.
Опис
Кључне речи
Weld defects, Resistance element welding, DP steel, aluminum alloy