Constant Heat Input Friction Stir Welding of Variable Thickness AZ31 Sheets through In-Process Tool Rotation Control

Antonio Barcellona, Gianluca Buffa, Livan Fratini, Davide Campanella, Michela Simoncini, Archimede Forcellese

Risultato della ricerca: Article

1 Citazioni (Scopus)

Abstract

Tailored blanks characterized by variable thickness were friction stir welded (FSWed) with the aim to obtain constant joint properties along the weld seam, regardless of the thickness change. To pursue this goal, the heat input was kept constant by in- process control of tool rotation. A dedicated numerical model of the process was used to determine the tool rotation values as a function of the sheet thickness. The mechanical properties and the microstructure of the FSWed joints, produced with varying process parameters, were studied. It was found that the proposed approach can produce joints with uniform properties along the weld line in terms of stress- strain curve shape, joint strength, elongation at failure, and microstructure.
Lingua originaleEnglish
Numero di pagine9
RivistaJOURNAL OF MANUFACTURING SCIENCE AND ENGINEERING
Volume141
Stato di pubblicazionePublished - 2019

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All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Mechanical Engineering
  • Computer Science Applications
  • Industrial and Manufacturing Engineering

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