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

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

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1 Citazione (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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Friction stir welding
Welds
Friction
Microstructure
Stress-strain curves
Process control
Numerical models
Elongation
Mechanical properties
Hot Temperature

All Science Journal Classification (ASJC) codes

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

Cita questo

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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.",
author = "Antonio Barcellona and Gianluca Buffa and Davide Campanella and Livan Fratini and Michela Simoncini and Archimede Forcellese",
year = "2019",
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T1 - Constant Heat Input Friction Stir Welding of Variable Thickness AZ31 Sheets through In-Process Tool Rotation Control

AU - Barcellona, Antonio

AU - Buffa, Gianluca

AU - Campanella, Davide

AU - Fratini, Livan

AU - Simoncini, Michela

AU - Forcellese, Archimede

PY - 2019

Y1 - 2019

N2 - 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.

AB - 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.

UR - http://hdl.handle.net/10447/376764

UR - http://manufacturingscience.asmedigitalcollection.asme.org/journal.aspx

M3 - Article

VL - 141

JO - Journal of Manufacturing Science and Engineering, Transactions of the ASME

JF - Journal of Manufacturing Science and Engineering, Transactions of the ASME

SN - 1087-1357

ER -