Deformation Processing of Sheet Metals by Continuous Frictional Angular Extrusion


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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 120o die angle. A uniform UFG structure with an average grain size of ~0.6μm 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.



Edited by:

P. B. Prangnell and P. S. Bate




Y. Huang and P. B. Prangnell, "Deformation Processing of Sheet Metals by Continuous Frictional Angular Extrusion", Materials Science Forum, Vol. 550, pp. 241-246, 2007

Online since:

July 2007




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