Development of ceramic backing for friction stir welding and processing
| Autor: | E. A. Torres, Antonio J. Ramirez, Tiago Felipe de Abreu Santos, Tahiana F. C. Hermengildo |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
010302 applied physics
Materials science Mechanical Engineering Metallurgy Metals and Alloys Life time 02 engineering and technology Welding 021001 nanoscience & nanotechnology 01 natural sciences law.invention Mechanics of Materials law visual_art 0103 physical sciences visual_art.visual_art_medium Friction stir welding Development (differential geometry) Friction welding Ceramic Composite material 0210 nano-technology Porosity |
| Zdroj: | Welding International. 30:338-347 |
| ISSN: | 1754-2138 0950-7116 |
| DOI: | 10.1080/09507116.2015.1096498 |
| Popis: | Usually, a workpiece is deformed during friction stir welding due to high applied loads. Consequently, fully and consolidated friction stir-welded joints as well as tool life time can be affected promoting unscheduled manufacturing stops, which favour decreasing the welding productivity. Furthermore, the workforce is dislocated to not predicted maintenance steps. This work proposes the development of a special ceramic backing to joining and processing material using FSW technologies. Four ceramic deposits were tested over a steel plate, which allowed selecting those with less porosity and, thus, better strength. This backing allowed us to obtain full penetration welds for duplex stainless steels, to high forces during engagement for high-strength low-alloy steels and to obtain consolidated aluminium–steel dissimilar joints. For the last one, there was not adherence of the soft material in the workpiece. In addition, the ceramic backing allowed us to confine the heat and plasticized metal, as well ... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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