In-process tool force and rotation variation to control sheet thickness change in friction stir welding of magnesium alloys

Livan Fratini, Gianluca Buffa, Michela Simoncini, Archimede Forcellese

Risultato della ricerca: Chapter

3 Citazioni (Scopus)

Abstract

Two different in-process control strategies, developed in order to produce sound joints in AZ31 magnesium alloy by Friction Stir Welding on sheet blanks with a non-uniform thickness, are presented and compared. To this purpose, sheets with dip or hump were machined and welded by either changing the rotational speed or the tool plunging in order to keep constant the vertical force occurring during welding. The mechanical strength of the joints was measured in the zones where the sheets before welding were characterised by different thicknesses. The sheets welded by the two different strategies are characterized by very similar ultimate tensile strength values. Finally, the results showed that the two approaches permit to successfully weld sheets with non-uniform thickness with a reduced loss in the mechanical strength.
Lingua originaleEnglish
Titolo della pubblicazione ospiteAIP Conference Proceedings
Numero di pagine6
Stato di pubblicazionePublished - 2016

Serie di pubblicazioni

NomeAIP CONFERENCE PROCEEDINGS

All Science Journal Classification (ASJC) codes

  • ???subjectarea.asjc.3100.3100???

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