Simulation of friction stir processing with internally cooled tool

A. N. Albakri, B. Mansoor, H. Nassar, M. K. Khraisheh

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Friction stir processing (FSP) is considered to be a promising sustainable technique for grain refinement of metallic alloys. The heat generated during FSP promotes dynamic recrystallization in processed material which is essential for grain sub-division process. However, excessive heat generation can lead to high temperatures of >300°C that may cause abnormal grain growth in the processed material. On the other hand, repetitive high temperature heating cycles can reduce the lifetime of the FSP tool. Therefore, it is essential to manage the process heat not only to achieve homogeneity and finer grain sizes in the processed material but also to reduce tool wear. In this work, friction stir processing of AZ31B Mg with an internally cooled FSP tool is simulated by a three-dimensional CFD model. We have studied the effect of rapid tool cooling on temperature and flow stress distribution in processed material. Additionally, the grain size and hardness of the processed material is estimated by using Zener-Holloman and Hall-Petch based relationships. It was found that FSP with internally cooled tool is a promising approach that effectively controls temperature levels during processing. Therefore it enables the achievement of better mechanical properties by effective grain refinement and has a positive effect on tool life.

Original languageEnglish
Title of host publicationMaterials and Manufacturing Technologies XIV
Pages560-565
Number of pages6
DOIs
Publication statusPublished - 15 Feb 2012
Event14th International Conference on Advances in Materials and Processing Technologies, AMPT 2011 - Istanbul, Turkey
Duration: 13 Jul 201116 Jul 2011

Publication series

NameAdvanced Materials Research
Volume445
ISSN (Print)1022-6680

Other

Other14th International Conference on Advances in Materials and Processing Technologies, AMPT 2011
CountryTurkey
CityIstanbul
Period13/7/1116/7/11

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Keywords

  • CFD
  • FSP
  • Grain Refinement
  • Hall-Petch
  • Internal Cooling
  • Zener-Holloman

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Albakri, A. N., Mansoor, B., Nassar, H., & Khraisheh, M. K. (2012). Simulation of friction stir processing with internally cooled tool. In Materials and Manufacturing Technologies XIV (pp. 560-565). (Advanced Materials Research; Vol. 445). https://doi.org/10.4028/www.scientific.net/AMR.445.560