Fabrication of aluminum foam core sandwich using sandwich-type foamable precursor with two face sheets by friction stir welding route

Takao Utsunomiya, Kohei Otsuki, Yoshihiko Hangai

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

An aluminum foam sandwich (AFS), which consists of an aluminum (Al) foam core and two dense metallic face sheets, is a lightweight component material with good energy and sound insulation properties. A fabrication method for AFSs that can simultaneously fabricate a foamable precursor and realize metallurgical bonding between the precursor and a dense metallic sheet was proposed using the friction stir welding (FSW) route. In this study, we produced a sandwich-type foamable precursor with two Al face sheets using the FSW route and, by foaming this precursor, an AFS was fabricated. Through X-ray computed tomography inspection of the AFS and observation by an electron probe microanalyzer, it was confirmed that no cracklike pores existed in the Al foam core and that only few pores generated by the foaming entered the Al face sheet. Moreover, static tensile tests of the AFS were carried out, and it was shown that the tensile strength of the Al foam core was not decreased by the existence of an oxide film and that the bonding strength of the interface between the Al foam core and the Al face sheet was higher than the tensile strength of the Al foam core.

Original languageEnglish
Pages (from-to)999-1004
Number of pages6
JournalMaterials Transactions
Volume59
Issue number6
DOIs
Publication statusPublished - 2018 Jan 1

Fingerprint

friction stir welding
Friction stir welding
Aluminum
foams
Foams
routes
aluminum
Fabrication
fabrication
foaming
tensile strength
Tensile strength
Sound insulation
porosity
electron probes
tensile tests
insulation
Oxide films
Tomography
oxide films

Keywords

  • Bonding
  • Composites
  • Foaming
  • Friction stir welding
  • Porous material
  • Sandwich panel
  • Tensile strength

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Fabrication of aluminum foam core sandwich using sandwich-type foamable precursor with two face sheets by friction stir welding route. / Utsunomiya, Takao; Otsuki, Kohei; Hangai, Yoshihiko.

In: Materials Transactions, Vol. 59, No. 6, 01.01.2018, p. 999-1004.

Research output: Contribution to journalArticle

@article{e8435640e9cc41ed99c92c1823b568be,
title = "Fabrication of aluminum foam core sandwich using sandwich-type foamable precursor with two face sheets by friction stir welding route",
abstract = "An aluminum foam sandwich (AFS), which consists of an aluminum (Al) foam core and two dense metallic face sheets, is a lightweight component material with good energy and sound insulation properties. A fabrication method for AFSs that can simultaneously fabricate a foamable precursor and realize metallurgical bonding between the precursor and a dense metallic sheet was proposed using the friction stir welding (FSW) route. In this study, we produced a sandwich-type foamable precursor with two Al face sheets using the FSW route and, by foaming this precursor, an AFS was fabricated. Through X-ray computed tomography inspection of the AFS and observation by an electron probe microanalyzer, it was confirmed that no cracklike pores existed in the Al foam core and that only few pores generated by the foaming entered the Al face sheet. Moreover, static tensile tests of the AFS were carried out, and it was shown that the tensile strength of the Al foam core was not decreased by the existence of an oxide film and that the bonding strength of the interface between the Al foam core and the Al face sheet was higher than the tensile strength of the Al foam core.",
keywords = "Bonding, Composites, Foaming, Friction stir welding, Porous material, Sandwich panel, Tensile strength",
author = "Takao Utsunomiya and Kohei Otsuki and Yoshihiko Hangai",
year = "2018",
month = "1",
day = "1",
doi = "10.2320/matertrans.M2018037",
language = "English",
volume = "59",
pages = "999--1004",
journal = "Materials Transactions",
issn = "1345-9678",
publisher = "Japan Institute of Metals (JIM)",
number = "6",

}

TY - JOUR

T1 - Fabrication of aluminum foam core sandwich using sandwich-type foamable precursor with two face sheets by friction stir welding route

AU - Utsunomiya, Takao

AU - Otsuki, Kohei

AU - Hangai, Yoshihiko

PY - 2018/1/1

Y1 - 2018/1/1

N2 - An aluminum foam sandwich (AFS), which consists of an aluminum (Al) foam core and two dense metallic face sheets, is a lightweight component material with good energy and sound insulation properties. A fabrication method for AFSs that can simultaneously fabricate a foamable precursor and realize metallurgical bonding between the precursor and a dense metallic sheet was proposed using the friction stir welding (FSW) route. In this study, we produced a sandwich-type foamable precursor with two Al face sheets using the FSW route and, by foaming this precursor, an AFS was fabricated. Through X-ray computed tomography inspection of the AFS and observation by an electron probe microanalyzer, it was confirmed that no cracklike pores existed in the Al foam core and that only few pores generated by the foaming entered the Al face sheet. Moreover, static tensile tests of the AFS were carried out, and it was shown that the tensile strength of the Al foam core was not decreased by the existence of an oxide film and that the bonding strength of the interface between the Al foam core and the Al face sheet was higher than the tensile strength of the Al foam core.

AB - An aluminum foam sandwich (AFS), which consists of an aluminum (Al) foam core and two dense metallic face sheets, is a lightweight component material with good energy and sound insulation properties. A fabrication method for AFSs that can simultaneously fabricate a foamable precursor and realize metallurgical bonding between the precursor and a dense metallic sheet was proposed using the friction stir welding (FSW) route. In this study, we produced a sandwich-type foamable precursor with two Al face sheets using the FSW route and, by foaming this precursor, an AFS was fabricated. Through X-ray computed tomography inspection of the AFS and observation by an electron probe microanalyzer, it was confirmed that no cracklike pores existed in the Al foam core and that only few pores generated by the foaming entered the Al face sheet. Moreover, static tensile tests of the AFS were carried out, and it was shown that the tensile strength of the Al foam core was not decreased by the existence of an oxide film and that the bonding strength of the interface between the Al foam core and the Al face sheet was higher than the tensile strength of the Al foam core.

KW - Bonding

KW - Composites

KW - Foaming

KW - Friction stir welding

KW - Porous material

KW - Sandwich panel

KW - Tensile strength

UR - http://www.scopus.com/inward/record.url?scp=85047773371&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85047773371&partnerID=8YFLogxK

U2 - 10.2320/matertrans.M2018037

DO - 10.2320/matertrans.M2018037

M3 - Article

AN - SCOPUS:85047773371

VL - 59

SP - 999

EP - 1004

JO - Materials Transactions

JF - Materials Transactions

SN - 1345-9678

IS - 6

ER -