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Investigation of the tool effect on the strength of friction stir spot welded aluminum specimens: A comparative study

  • Hande Güler
Published/Copyright: April 14, 2015
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Materials Testing
From the journal Materials Testing Volume 57 Issue 3

Abstract

Aluminum and its alloys are widely used in the automotive industry because of their light weight and good formability as well as malleability, and an alternative welding technique, the friction stir spot welding process, can be successfully used to join these materials. In this study, friction stir spot welding is applied to an AA 5754-H111 alloy to compare the effect of tool geometry and tool material on shear strength. Welds are made using different rotational speeds of tool and dwell times ranging from 500 to 1500 rpm and 6 s to 21 s, respectively. The experimental results showed that the combination of dwell time and rotational speed of tool as well as tool geometry and tool material have an important role in the strength of the joints. The total thickness and weld nugget diameter were also investigated in this study.

Kurzfassung

Aluminium und seine Legierungen werden breitflächig in der Automobilindustrie verwendet, da sie geringes Gewicht sowie eine gute Verformbarkeit und Schmiedbarkeit aufweisen. Als alternative Schweißtechnik kann der Rührreibpunktschweißprozess angewendet werden, um diese Werkstoffe erfolgreich zu verbinden. In der diesem Beitrag zugrunde liegenden Studie wurde das Rührreibpunktschweißen auf eine AA 5754-H111 angewendet, um die Wirkung der Werkzeuggeometrie und des Werkzeugmaterials auf die Scherfestigkeit zu untersuchen. Die Schweißungen wurden mit verschiedenen Werkzeugrotationsgeschwindigkeiten und Verweilzeiten ausgeführt, die zwischen 500 und 1500 U·min−1 sowie 6 s und 21 s lagen. Die experimentellen Ergebnisse zeigen, dass sich die Kombination aus Verweilzeit und Rotationsgeschwindigkeit sowie die Werkzeuggeometrie und das Werkzeugmaterial erheblich auf die Festigkeit der Verbindungen auswirken. Die Gesamtdicke und der Durchmesser der Schweißpunkte wurden ebenfalls in dieser Studie untersucht.

§Correspondence Address, Dr. Hande Güler, Department of Mechanical Engineering, Faculty of Engineering, Uludag University, 16059 Gorukle-Bursa, Turkey,

Dr. Hande Güler, born in 1982, is Research Assistant at Uludag University in Bursa, Turkey. She received her MS degree in 2008 and PhD degree in 2013 at the same university. Her research interests include mechanics of materials, sheet metal forming processes, finite element methods, heat treatment of boron steels and friction stir spot welding.

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Published Online: 2015-04-14
Published in Print: 2015-03-02

© 2015, Carl Hanser Verlag, München

Articles in the same Issue

  1. Inhalt/Contents
  2. Inhalt
  3. Fachbeiträge/Technical Contributions
  4. Failure of porcelain coated heating elements used in regenerative air preheaters
  5. Mechanical characterization by DOE analysis of AA6156-T4 friction stir welded joints in as-welded and post-weld aged condition
  6. Cold formability of AISI 1020 steel sheets
  7. Optimierung einer Probenform für den Kreuzzugversuch zur Bestimmung der Grenzformänderung
  8. Friction weldability of a PA 6 polymer
  9. A discrete dislocation technique for fatigue microcracks (Part III)
  10. Flexure behavior of composite cantilevers subjected to different environmental conditions
  11. Structure investigation of soil aggregates treated with different organic matter using X-ray micro tomography*
  12. Investigation of the tool effect on the strength of friction stir spot welded aluminum specimens: A comparative study
  13. Microstructural and mechanical characterization of electric arc furnace (EAF) slag for use as abrasive grit material
  14. Charring rate of timbers in terms of size, layer material and fire class evaluated by the Taguchi method
  15. Tribological properties of boronized ferrous based PM journal bearings
  16. SNMS investigations of thermally sprayed coatings
  17. Kalender/Calendar
  18. Kalender
https://doi.org/10.3139/120.110695

Articles in the same Issue

  1. Inhalt/Contents
  2. Inhalt
  3. Fachbeiträge/Technical Contributions
  4. Failure of porcelain coated heating elements used in regenerative air preheaters
  5. Mechanical characterization by DOE analysis of AA6156-T4 friction stir welded joints in as-welded and post-weld aged condition
  6. Cold formability of AISI 1020 steel sheets
  7. Optimierung einer Probenform für den Kreuzzugversuch zur Bestimmung der Grenzformänderung
  8. Friction weldability of a PA 6 polymer
  9. A discrete dislocation technique for fatigue microcracks (Part III)
  10. Flexure behavior of composite cantilevers subjected to different environmental conditions
  11. Structure investigation of soil aggregates treated with different organic matter using X-ray micro tomography*
  12. Investigation of the tool effect on the strength of friction stir spot welded aluminum specimens: A comparative study
  13. Microstructural and mechanical characterization of electric arc furnace (EAF) slag for use as abrasive grit material
  14. Charring rate of timbers in terms of size, layer material and fire class evaluated by the Taguchi method
  15. Tribological properties of boronized ferrous based PM journal bearings
  16. SNMS investigations of thermally sprayed coatings
  17. Kalender/Calendar
  18. Kalender
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