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- Title
Extruded joining elements manufactured by friction stir forming: an investigation of the process parameters.
- Authors
Gagliardi, Francesco; Ambrogio, Giuseppina; Conte, Romina; Bambach, Markus
- Abstract
Aluminium sheets (EN AW-1050) have been worked by a friction stir process to allow forming pins to be used as joining elements, in a clinching-type solution, for assembling multi-material components. Two lines of pins of diameter 4 mm and 6 mm, respectively, have been formed experimentally at various process conditions. A process control, using the force-trend distribution, has been pursued for a full comprehension of the forming steps. The strength of the pins has been tested aiming at understanding the influence of all the analysed process parameters thoroughly. Additionally, a numerical model has been developed and compared with the experimental evidence. This model has been employed to investigate the material flow during the pin formation. The results demonstrate the feasibility of this innovative method and highlight the significance of the main parameters that have to be set carefully for an optimised implementation of friction stir forming based joining technique.
- Subjects
SHEET metal work; FRICTION stir processing; FRICTION; INVESTIGATIONS; ALUMINUM-lithium alloys
- Publication
International Journal of Advanced Manufacturing Technology, 2020, Vol 106, Issue 11/12, p5559
- ISSN
0268-3768
- Publication type
Article
- DOI
10.1007/s00170-020-04992-w