Investigation of the tool effect on the strength of friction stir spot welded aluminum specimens: A comparative study
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Hande Güler
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.
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© 2015, Carl Hanser Verlag, München
Artikel in diesem Heft
- Inhalt/Contents
- Inhalt
- Fachbeiträge/Technical Contributions
- Failure of porcelain coated heating elements used in regenerative air preheaters
- Mechanical characterization by DOE analysis of AA6156-T4 friction stir welded joints in as-welded and post-weld aged condition
- Cold formability of AISI 1020 steel sheets
- Optimierung einer Probenform für den Kreuzzugversuch zur Bestimmung der Grenzformänderung
- Friction weldability of a PA 6 polymer
- A discrete dislocation technique for fatigue microcracks (Part III)
- Flexure behavior of composite cantilevers subjected to different environmental conditions
- Structure investigation of soil aggregates treated with different organic matter using X-ray micro tomography*
- Investigation of the tool effect on the strength of friction stir spot welded aluminum specimens: A comparative study
- Microstructural and mechanical characterization of electric arc furnace (EAF) slag for use as abrasive grit material
- Charring rate of timbers in terms of size, layer material and fire class evaluated by the Taguchi method
- Tribological properties of boronized ferrous based PM journal bearings
- SNMS investigations of thermally sprayed coatings
- Kalender/Calendar
- Kalender
Artikel in diesem Heft
- Inhalt/Contents
- Inhalt
- Fachbeiträge/Technical Contributions
- Failure of porcelain coated heating elements used in regenerative air preheaters
- Mechanical characterization by DOE analysis of AA6156-T4 friction stir welded joints in as-welded and post-weld aged condition
- Cold formability of AISI 1020 steel sheets
- Optimierung einer Probenform für den Kreuzzugversuch zur Bestimmung der Grenzformänderung
- Friction weldability of a PA 6 polymer
- A discrete dislocation technique for fatigue microcracks (Part III)
- Flexure behavior of composite cantilevers subjected to different environmental conditions
- Structure investigation of soil aggregates treated with different organic matter using X-ray micro tomography*
- Investigation of the tool effect on the strength of friction stir spot welded aluminum specimens: A comparative study
- Microstructural and mechanical characterization of electric arc furnace (EAF) slag for use as abrasive grit material
- Charring rate of timbers in terms of size, layer material and fire class evaluated by the Taguchi method
- Tribological properties of boronized ferrous based PM journal bearings
- SNMS investigations of thermally sprayed coatings
- Kalender/Calendar
- Kalender
