Linking process and structure in the friction stir scribe joining of dissimilar materials: A computational approach with experimental support
Journal Article
·
· Journal of Manufacturing Processes
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- General Motors Research and Development, Warren, MI (United States)
We present that friction stir welding (FSW) is a popular technique to join dissimilar materials in numerous applications. The solid state nature of the process enables joining materials with strikingly different physical properties. For welds in lap configuration, an enhancement to this technology is made by introducing a short, hard insert, referred to as a cutting-scribe, at the bottom of the tool pin. The cutting-scribe induces deformation in the bottom plate which leads to the formation of mechanical interlocks or hook like structures at the interface of two materials. A thermo-mechanical computational model employing a coupled Eulerian-Lagrangian approach is developed to quantitatively capture the morphology of these interlocks during the FSW process. Simulations using this model are validated by experimental observations. In conclusion, the identified interface morphology coupled with the predicted temperature field from this process–structure model can be used to estimate the post-weld microstructure and joint strength.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE)
- Grant/Contract Number:
- AC05-00OR22725; AC05-76RL01830; EE0007311
- OSTI ID:
- 1435194
- Alternate ID(s):
- OSTI ID: 1434847
OSTI ID: 1780260
OSTI ID: 1491237
- Journal Information:
- Journal of Manufacturing Processes, Journal Name: Journal of Manufacturing Processes Journal Issue: C Vol. 32; ISSN 1526-6125
- Publisher:
- Society of Manufacturing Engineers; ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
A review on friction-based joining of dissimilar aluminum–steel joints
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journal | October 2018 |
Effect of Tool Design and Process Parameters on Lap Joints Made by Right Angle Friction Stir Welding (RAFSW)
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journal | August 2019 |
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Linking process and structure in the friction stir scribe joining of dissimilar materials: A computational approach with experimental support
Linking process and structure in the friction stir scribe joining of dissimilar materials: A computational approach with experimental support
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Sun Apr 01 00:00:00 EDT 2018
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OSTI ID:1434847
Linking process and structure in the friction stir scribe joining of dissimilar materials: A computational approach with experimental support
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Sun Apr 01 00:00:00 EDT 2018
· Journal of Manufacturing Processes
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OSTI ID:1491237
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Conference
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Sun Feb 15 23:00:00 EST 2015
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OSTI ID:1214902