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Mechanical Performance of Resistance Spot Welding Joint of Dissimilar High Strength Steels
| Content Provider | Semantic Scholar |
|---|---|
| Author | Zhou, Shang-Gong Liu, Kai-Wei Wang, Mian Ren, Jiang-Wei |
| Copyright Year | 2017 |
| Abstract | Ultra-high strength hot stamped steel B1500HS and cold rolled high strength steel B250P1 with unequal thickness were resistance spot welded. The macrostructure and microstructure of welding joints were observed through optical microscope and scanning electron microscope. The mechanical performances of welding joints were studied by means of shear and cross tension test. The results show a single nugget about 7.6mm in size form and nugget shifts towards B1500HS side. Martensite form in nugget and the heat affected zone on B1500HS side, which provides the both parts higher strength than B250P1. All welding joints are pulled out in both shear and cross tension test. Bigger nugget is the most important controlling factor for shear strength. The shape of nugget has distinct effect on the properties of joints under cross tension condition. |
| File Format | PDF HTM / HTML |
| DOI | 10.12783/dtmse/amst2016/11325 |
| Alternate Webpage(s) | http://dpi-proceedings.com/index.php/dtmse/article/download/11325/10870 |
| Alternate Webpage(s) | https://doi.org/10.12783/dtmse%2Famst2016%2F11325 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
