Advertisement

Welding in the World

, Volume 62, Issue 3, pp 675–682 | Cite as

Joining of 3D-printed AlSi10Mg by friction stir welding

  • Z. Du
  • M. J. Tan
  • H. Chen
  • G. Bi
  • C. K. Chua
Research Paper
  • 145 Downloads
Part of the following topical collections:
  1. Welding, Additive Manufacturing and Associated NDT

Abstract

Friction stir welding is a solid-state welding technology capable of joining metal parts without melting. The microstructure of the material evolved during the process from columnar grain along the thermal gradient in the melt pool to fine equiaxed grains. A significant decrease in microhardness in the stir zone was observed with the lowest hardness at approximately 3 mm from the weld centre. The decrease in the microhardness is mainly attributed to the dissolution of hardening precipitates in the aluminium matrix. Defects in the weld were observed due to insufficient heat input. Heat input could be increased with the increase in rotational speed of the welding tool, with some improvements in strength.

Keywords

Welding AlSi10Mg Joining Friction stir welding Selective laser melting Additive manufacturing 

References

  1. 1.
    Rhodes CG, Mahoney MW, Bingel WH, Spurling RA, Bampton CC (1997) Effects of friction stir welding on microstructure of 7075 aluminum. Scr Mater 36(1):69–75CrossRefGoogle Scholar
  2. 2.
    Liu G, Murr LE, Niou CS, McClure JC, Vega FR (1997) Microstructural aspects of the friction-stir welding of 6061-T6 aluminum. Scr Mater 37(3):355–361CrossRefGoogle Scholar
  3. 3.
    Jata KV, Sankaran KK, Ruschau JJ (2000) Friction-stir welding effects on microstructure and fatigue of aluminum alloy 7050-T7451. Metall Mater Trans A 31(9):2181–2192CrossRefGoogle Scholar
  4. 4.
    Jhabvala J, Boillat E, Antignac T, Glardon R (2010) On the effect of scanning strategies in the selective laser melting process. Virtual and Physical Prototyping 5(2):99–109CrossRefGoogle Scholar
  5. 5.
    Su J-Q, Nelson TW, Sterling CJ (2005) Microstructure evolution during FSW/FSP of high strength aluminum alloys. Mater Sci Eng A 405(1–2):277–286CrossRefGoogle Scholar
  6. 6.
    Fonda RW, Knipling KE, Bingert JF (2008) Microstructural evolution ahead of the tool in aluminum friction stir welds. Scr Mater 58(5):343–348CrossRefGoogle Scholar
  7. 7.
    Humphreys F.J. and Hatherly M., Chapter 11 - Grain growth following recrystallization, ed. R.a.R.A.P.S. Edition). 2004, Oxford: Elsevier LtdGoogle Scholar
  8. 8.
    Mishra R.S. and Ma Z.Y., Friction stir welding and processing. Materials Science and Engineering: R: Reports, 2005. 50(1–2): p. 1-78Google Scholar
  9. 9.
    Sato YS, Urata M, Kokawa H (2002) Parameters controlling microstructure and hardness during friction-stir welding of precipitation-hardenable aluminum alloy 6063. Metall Mater Trans A 33(3):625–635CrossRefGoogle Scholar
  10. 10.
    Arbegast W.J., Hot deformation of aluminum alloys III, ed. Z. Jin, A. Beaudoin, T.A. Bieler, and B. Radhakrishnan. 2003: WileyGoogle Scholar
  11. 11.
    Hales SJ, McNelley TR (1988) Microstructural evolution by continuous recrystallization in a superplastic Al-Mg alloy. Acta Metall 36(5):1229–1239CrossRefGoogle Scholar
  12. 12.
    Gudmundsson H, Brooks D, Wert JA (1991) Mechanisms of continuous recrystallization in an Al ☐ Zr ☐ Si alloy. Acta Metall Mater 39(1):19–35Google Scholar
  13. 13.
    Du Z, Tan MJ, Guo JF, Wei J (2016) Aluminium-carbon nanotubes composites produced from friction stir processing and selective laser melting. Mater Werkst 47(5–6):539–548CrossRefGoogle Scholar
  14. 14.
    Guo J.F., Liu J., Sun C.N., Maleksaeedi S., Bi G., Tan M.J., and Wei J., Effects of nano-Al2O3 particle addition on grain structure evolution and mechanical behaviour of friction-stir-processed Al. Mater Sci Eng A, 2014. 602(0): p. 143–149Google Scholar
  15. 15.
    Al-Fadhalah K.J., Almazrouee A.I., and Aloraier A.S., Microstructure and mechanical properties of multi-pass friction stir processed aluminum alloy 6063. Materials & Design, 2014. 53(0): p. 550–560Google Scholar
  16. 16.
    Sato YS, Kokawa H, Enomoto M, Jogan S (1999) Microstructural evolution of 6063 aluminum during friction-stir welding. Metall Mater Trans A 30(9):2429–2437CrossRefGoogle Scholar
  17. 17.
    Du Z, Tan MJ, Guo JF, Bi G, Wei J (2016) Fabrication of a new Al-Al2O3-CNTs composite using friction stir processing (FSP). Mater Sci Eng A 667:125–131CrossRefGoogle Scholar
  18. 18.
    Takahara H, Tsujikawa M, Chung SW, Okawa Y, Higashi K, Oki S (2008) Optimization of welding condition for nonlinear friction stir welding. Mater Trans 49(6):1359–1364CrossRefGoogle Scholar
  19. 19.
    Kwon Y, Saito N, Shigematsu I (2002) Friction stir process as a new manufacturing technique of ultrafine grained aluminum alloy. J Mater Sci Lett 21(19):1473–1476CrossRefGoogle Scholar
  20. 20.
    Martin J.W., Micromechanisms in particle-hardened alloys. 1980: CUP ArchiveGoogle Scholar
  21. 21.
    Committee A.h., Properties and selection: nonferros alloys and special-purpose materials. 1991, Materials Park, OH: ASM InternationalGoogle Scholar

Copyright information

© International Institute of Welding 2018

Authors and Affiliations

  1. 1.Singapore Centre for 3D Printing, School of Mechanical & Aerospace EngineeringNanyang Technological UniversitySingaporeSingapore
  2. 2.Singapore Institute of Manufacturing Technology (SIMTech)SingaporeSingapore

Personalised recommendations