Large Strain Cyclic Simple Shear Behavior of Aluminum Extrusions: An xperimental and Numerical Study

Muhammad, Waqas; Brahme, Abhijit; Kang, Jidong; Mishra, Raja K.; Inal, Kaan

doi:10.1002/9781119274780.ch29

Cited by 1 publication

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“…When a specimen was subjected to strain, grains at the surface were prone to move in the direction normal to the surface, as this is the direction in which these are not constrained. Surface roughening led to the formation of continuous parallel ridges along the surface of a formed cup or part, as has been discussed many times and which is attributed to grain anisotropy and texture inhomogeneities . The EBSD maps presented show the creation of regions of specific orientation, creating parallel lamellas, which can explain the creation of ridges in the m1 sample and their absence in the m8 sample.…”

Section: Discussionsupporting

confidence: 53%

Forming Ability of Ultrafine‐Grained Aluminum Plates Processed by Incremental Equal Channel Angular Pressing

et al. 2019

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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 ultrafinegrained 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.

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Section: Discussionsupporting

confidence: 53%