Probing load bearing capacity of circular and non-circular tool pins in friction stir welding

M. Mehta, A. De, Tarasankar Debroy

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

2 Scopus citations

Abstract

The tool pin in friction stir welding experiences fluctuating stresses due to combined bending and torsion because of the simultaneous linear and rotational motions. The resultant bending and shear stresses contribute to the magnitude of the fluctuating stresses experienced by the pin. Here we propose a methodology to estimate the maximum shear stress and the extent of the fluctuating stresses on the tool pins with circular, triangular and square profiles using a three-dimensional heat transfer analysis and solid mechanics based principles. The computed values of thermal cycle and torque are validated with the corresponding measured results. The estimated traverse force is found to be of the similar order of magnitude for FSW of similar materials. For a given welding condition, the tool pin with circular profile experiences the lowest magnitude and the fluctuation of the maximum shear stress.

Original languageEnglish (US)
Title of host publicationTrends in Welding Research - Proceedings of the 9th International Conference
Pages563-571
Number of pages9
StatePublished - Jul 31 2013
Event9th International Conference on Trends in Welding Research - Chicago, IL, United States
Duration: Jun 4 2012Jun 8 2012

Other

Other9th International Conference on Trends in Welding Research
CountryUnited States
CityChicago, IL
Period6/4/126/8/12

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanical Engineering

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  • Cite this

    Mehta, M., De, A., & Debroy, T. (2013). Probing load bearing capacity of circular and non-circular tool pins in friction stir welding. In Trends in Welding Research - Proceedings of the 9th International Conference (pp. 563-571)