Deformation processing of sheet metals by continuous frictional angular extrusion

Y. Huang, P. B. Prangnell

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    The feasibility of a novel continuous severe plastic deformation (SPD) technique, continuous frictional angular extrusion (CFAE), for producing ultra-fine grained strip material, has been studied. The CFAE technique takes advantage of facets of rolling and equal channel angular extrusion (ECAE) and is designed to produce bulk ultra-fine grained (UFG) metals with high productivity and low cost. A process setup was established through the modification of a standard rolling mill. CFAE processing of commercially pure aluminium AA1050 sheets was successfully carried out at room temperature, using a 120° die angle. A uniform UFG structure with an average grain size of -0.6μn was achieved after 10 CFAE passes, at an equivalent strain of - 6.6. Evolution of the deformation structure and texture during processing was examined as a function of strain and characterized using high resolution EBSD.
    Original languageEnglish
    Pages (from-to)241-246
    Number of pages5
    JournalMaterials Science Forum
    Publication statusPublished - 2007


    • Continuous frictional angular extrusion (CFAE)
    • Deformation processing
    • Deformation structure
    • EBSD
    • Sheet metals
    • Texture
    • Ultra-fine grained (UFG) structure


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