FSW to seal 50mm thick copper canisters - a weld that lasts for 100,000 years
- Cederqvist L.
- Cederqvist L.
September 2004
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Description
A method investigated by Sweden for storage of nuclear waste in copper canisters sealed using friction stir welding (where EB welding has been used before) is described. Topics include: Nimonic 105 and Densimet sintered tungsten alloy tool; welding machine; joint preparation for the lid to canister joint; use of a pilot hole; welding procedure; and measurement of the welding temperature. Experience with weld quality is discussed, with reference to results of radiography, ultrasonic testing, eddy current inspection and tensile testing.
5th International Symposium, 14-16 Sep 2004, Session 5B: Copper Alloys/Magnesium Alloys, Paper 01
Subjects
- Environment
- Nuclear engineering
- Friction welding
- Welding
- Process
- Friction stir welding
- Process equipment
- Nonferrous
- Material
- Copper and Cu alloys
- Nickel and Ni alloys
- Process conditions
- Nondestructive testing
- Testing
- Eddy current testing
- Ultrasonic testing
- Process procedures
- Radiography
- Strength
- Mechanical properties
- Properties
- Ultimate tensile strength
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