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Analysis of the tool plunge in friction stir welding comparison of aluminum alloys 2024 t3 and 2024 t351

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2016
3436.pdf (704.2Kb)
Authors
Veljić, Darko
Međo, Bojan
Rakin, Marko
Radosavljević, Zoran M.
Bajić, Nikola
article (publishedVersion)
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Abstract
Temperature, plastic strain and heat generation during the plunge stage of the friction stir welding of high-strength aluminum alloys 2024 T3 and 2024 T351 are considered in this work. The plunging of the tool into the material is done at different rotating speeds. A 3-D finite element model for thermomechanical simulation is developed. It is based on arbitrary Lagrangian-Eulerian formulation, and Johnson-Cook material law is used for modelling of material behaviour. From comparison of the numerical results for alloys 2024 T3 and 2024 T351, it can be seen that the former has more intensive heat generation from the plastic deformation, due to its higher strength. Friction heat generation is only slightly dfferent for the two alloys. Therefore, temperatures in the working plate are higher in the alloy 2024 T3 for the same parameters of the plunge stage. Equivalent plastic strain is higher for 2024 T351 alloy, and the highest values are determined under the tool shoulder and around the to...ol pin. For the alloy 2024 T3, equivalent plastic strain is the highest in the influence zone of the tool pin.

Keywords:
friction stir welding / numerical simulation / temperature fields / heat generation / equivalent plastic strain
Source:
Thermal Science, 2016, 20, 1, 247-254
Publisher:
  • Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd
Funding / projects:
  • info:eu-repo/grantAgreement/MESTD/Technological Development (TD or TR)/34016/RS// (RS-34016)
  • info:eu-repo/grantAgreement/MESTD/Technological Development (TD or TR)/35006/RS// (RS-35006)

DOI: 10.2298/TSCI150313059V

ISSN: 0354-9836

WoS: 000373314400023

Scopus: 2-s2.0-84963517277
[ Google Scholar ]
URI
http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3439
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  • Radovi istraživača / Researchers’ publications (TMF)
  • Radovi istraživača (Inovacioni centar) / Researchers’ publications (Innovation Centre)
Institution/Community
Tehnološko-metalurški fakultet

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