| Autor: |
Piyush Upadhyay, Daniel Graff, Hrishikesh Das |
| Rok vydání: |
2021 |
| Předmět: |
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| Zdroj: |
The Minerals, Metals & Materials Series ISBN: 9783030652647 |
| DOI: |
10.1007/978-3-030-65265-4_2 |
| Popis: |
An update on the joint characterization of three-sheet friction stir lap welds (FSLW) in three aluminum alloys (7xxx, 5xxx, and 6xxx) for automotive assembly application is presented. Welding speed of 0.3–2.9 m/min was used with pin length >5 mm with the aim to reduce upturn hooking on the retreating side and avoid wormhole defect on the advancing side. Joints were also made to enable T peel and U peel testing. Stitch welds were used to understand the effects of weld length and ramp length on T peel performance. Hat sections were joined for three-point bending and axial crush testing and tested with promising results. Several key issues that require further investigations are identified including flash management near the trim edge, weld quality with limited clamping, tool failures at speeds greater than 0.5 m/min, and the propensity of incipient melting for 7xxx stack-up. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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