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Forming Ability of Ultrafine‐Grained Aluminum Plates Processed by Incremental Equal Channel Angular Pressing
Author(s) -
Ciemiorek Marta,
Bartkowski Piotr,
Chromiński Witold,
Olejnik Lech,
Lewandowska Małgorzata
Publication year - 2019
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.201900473
Subject(s) - formability , materials science , pressing , severe plastic deformation , microstructure , aluminium , anisotropy , metallurgy , finite element method , composite material , deformation (meteorology) , sheet metal , die (integrated circuit) , structural engineering , nanotechnology , optics , physics , engineering
Recently, post‐severe plastic deformation (SPD) shaping processes have attracted attention because of the limited amount of data available on this topic. Herein, the formability of commercially pure aluminum plates with an ultrafine‐grained microstructure processed by incremental equal channel angular pressing (I‐ECAP) up to eight passes is discussed. The formability is evaluated experimentally using a cup‐forming operation followed by modeling using finite element method (FEM). The drawn cups made of ultrafine‐grained aluminum exhibit a smooth surface and show no signs of planar anisotropy (no earing). It is thus demonstrated that I‐ECAP processing is successful in terms of reducing the anisotropy and may be an attractive process for obtaining a material suitable for forming sheet metal.