Thermal Management in Friction-Stir Welding of Precipitation-Hardening Aluminum Alloys
Process design and implementation in FSW is mostly dependent on empirical information gathered through experience. Basic science of friction stir welding and processing can only be complete when fundamental interrelationships between process control parameters and response variables and resulting weld microstructure and properties are established to a reasonable extent. It is known that primary process control parameters like tool rotation and translation rate and forge axis force have complicated and interactive relationships to the process response variables such as peak temperature, time at temperature etc. Of primary influence to the other process response parameters are temperature and its gradient at the deformation and heat affected zones. Through review of pertinent works in the literature and some experimental results from boundary condition work performed in precipitation hardening aluminum alloys this paper will partially elucidate the nature and effects of temperature transients caused by variation of thermal boundaries in Friction Stir Welding.
- Research Organization:
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-76RL01830
- OSTI ID:
- 1221489
- Report Number(s):
- PNNL-SA-107481; VT0505000
- Journal Information:
- JOM. The Journal of the Minerals, Metals and Materials Society, 67(5):1022-1031, Journal Name: JOM. The Journal of the Minerals, Metals and Materials Society, 67(5):1022-1031
- Country of Publication:
- United States
- Language:
- English
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