Investigations on the Mechanical Properties and Formability of Friction Stir Welded Tailored Blanks

Livan Fratini, Gianluca Buffa, Staud, Merklein

Risultato della ricerca: Articlepeer review

6 Citazioni (Scopus)

Abstract

Tight competition characterizing automotive industries in the last decades has determined a strong research effort aimed to improve utilized processes and materials in sheet stamping. As far as the latter are regarded light weight alloys, high strength steels and tailored blanks have been increasingly utilized with the aim to reduce parts weight and fuel consumptions. In the paper the mechanical properties and formability of tailored welded blanks made of a precipitation hardenable aluminum alloy but with different sheet thicknesses, have been investigated: both laser welding and friction stir welding have been developed to obtain the tailored blanks. For both welding operations a wide range of the thickness ratios has been considered. The formability of the obtained blanks has been characterized through tensile tests and cup deep drawing tests, in order to show the formability in dependency of the stress condition; what is more mechanical and metallurgical investigations have been made oil the welded joints.
Lingua originaleEnglish
pagine (da-a)143-150
Numero di pagine8
RivistaKEY ENGINEERING MATERIALS
Volume344
Stato di pubblicazionePublished - 2007

All Science Journal Classification (ASJC) codes

  • ???subjectarea.asjc.2500.2500???
  • Mechanics of Materials
  • Mechanical Engineering

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