Experimental thermal analysis of friction stir processing

B. M. Darras, M. A. Omar, M. K. Khraisheh

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    31 Scopus citations

    Abstract

    Despite the large number of studies that are being conducted to advance the friction stir processing (FSP) technology, the effects of FSP on various mechanical and microstructural properties are still in need for further investigations. In addition, correlations between FSP parameters, mechanical properties and microstructural characteristics are not yet well understood. Accurate correlations are needed for successful modeling and process optimization. It is established that the temperature generated during FSP plays an important role in determining the microstructure and properties of the processed sheet and defining the tool life. Process parameters must be carefully chosen to allow the generation of enough heat to soften the material while limiting significant grain growth. Accurate measurement of the temperature distributions during processing are essential to understand the complicated deformation and associated mechanisms and to allow for effective process optimization. In this work, a dual-band thermography approach is used to measure the temperature distributions of AA5052 sheet during FSP. The setup utilizes two infrared detectors, to neutralize the emissivity and the facial effects, with 30 Hz acquisition rate. The variation of temperature with process parameters and their correlation to the resulting microstructure are discussed.

    Original languageBritish English
    Title of host publicationSupplement to THERMEC 2006, 5th International Conference on PROCESSING and MANUFACTURING OF ADVANCED MATERIALS, THERMEC 2006
    Pages3801-3806
    Number of pages6
    EditionPART 4
    DOIs
    StatePublished - 2007
    Event5th International Conference on Processing and Manufacturing of Advanced Materials - THERMEC'2006 - Vancouver, Canada
    Duration: 4 Jul 20068 Jul 2006

    Publication series

    NameMaterials Science Forum
    NumberPART 4
    Volume539-543
    ISSN (Print)0255-5476
    ISSN (Electronic)1662-9752

    Conference

    Conference5th International Conference on Processing and Manufacturing of Advanced Materials - THERMEC'2006
    Country/TerritoryCanada
    CityVancouver
    Period4/07/068/07/06

    Keywords

    • Dual-band thermography
    • Friction stir processing
    • Microstructure
    • Temperature profiles

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