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Tool Geometry Effects on Mechanical Properties of Spot Friction Welds in Lap-Shear Specimens of 6061-T6 Aluminum Sheets National Chung Cheng Univ
- Format:
- Conference/Event
- Author/Creator:
- Lin, Lin, author.
- Conference Name:
- SAE 2010 World Congress & Exhibition (2010-04-13 : Detroit, Michigan, United States)
- Language:
- English
- Physical Description:
- 1 online resource
- Place of Publication:
- Warrendale, PA SAE International 2010
- Summary:
- Effects of tool geometry on mechanical properties of spot friction welds in lap-shear specimens of 6061-T6 aluminum sheets are investigated based on experimental observations. Three tools with shoulder diameters of 8 mm (small), 10 mm (medium) and 12 mm (large) were used to join aluminum sheets, respectively. The experimental results indicate that the failure strengths of the welds show significant dependence on the tool size. Optical and scanning electron micrographs of the welds made by three tools before and after failure were examined and micro indentation tests of these welds were conducted. The results show that the weld geometry, microstructure distributions and micro hardness distributions of the three welds are quite similar. However, the material flow trends of these welds appear to be quite different. The small and medium failed welds show the circumferential/shear failure mode and the large failed weld shows the nugget pullout failure mode
- Notes:
- Vendor supplied data
- Publisher Number:
- 2010-01-0972
- Access Restriction:
- Restricted for use by site license
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