Finite Element Modelling of Friction Stir Welding on Copper Canister
2004 (English)In: 5th International Friction Stir Welding symposium, 2004Conference paper (Refereed)
In an effort to enhance safety for long time deposit of waste nuclear fuel, friction stir welding has been tentatively used to seal copper canisters. To avoid the formation of voids and cracks during the welding process, and to understand the heat and material flow as well as the evolution of the microstructure, are of great importance. Finite element modelling has been used to simulate the friction stir welding process.
A model involving heat transfer, material flow, and continuum mechanics has been developed. The steady state solutions have been compared with experimental temperature observations as well as analytical solutions, showing good agreement. Temperature distribution is affected by the welding speed. For a given reference point perpendicular to the welding direction, a lower welding speed corresponds to a higher peak temperature. The plunging position of welding tool influences the temperature distribution and therefore also the thermal distortion of the weldment.
Place, publisher, year, edition, pages
friction stir welding, FSW, copper, finite element modelling
IdentifiersURN: urn:nbn:se:kth:diva-12012OAI: oai:DiVA.org:kth-12012DiVA: diva2:294093
5th International Friction Stir Welding symposium, Metz, France, 14-16 September, 2004
QC 201007192010-02-162010-02-162010-12-07Bibliographically approved