Detail publikace
On the evaluation of strain inhomogeneity by hardness measurement of formed products
PETRUŠKA, J. JANÍČEK, L.
Anglický název
On the evaluation of strain inhomogeneity by hardness measurement of formed products
Typ
článek v časopise - ostatní, Jost
Jazyk
en
Originální abstrakt
Large plastic deformation of cold formed metal is followed by its hardening, which can be experimentally evaluated by measuring hardness. To convert the measured hardness values into strain, the strain–hardness reference curves are used. Their evaluation is traditionally based on compression tests of cylindrical specimens. New procedure of reference curves evaluation is suggested here, based on an FE simulation of a forming process and direct relation of computed strain and measured hardness. The procedure is illustrated on the example of forward extrusion process and reference curves, obtained by classical and newly suggested procedure are compared.
Anglický abstrakt
Large plastic deformation of cold formed metal is followed by its hardening, which can be experimentally evaluated by measuring hardness. To convert the measured hardness values into strain, the strain–hardness reference curves are used. Their evaluation is traditionally based on compression tests of cylindrical specimens. New procedure of reference curves evaluation is suggested here, based on an FE simulation of a forming process and direct relation of computed strain and measured hardness. The procedure is illustrated on the example of forward extrusion process and reference curves, obtained by classical and newly suggested procedure are compared.
Klíčová slova anglicky
Hardness measurement; Strain distribution; FE simulation; Compression test; Forward extrusion
Rok RIV
2003
Vydáno
01.01.2003
ISSN
0924-0136
Časopis
Journal of Materials Processing Technology
Ročník
143-144
Číslo
12
Počet stran
6
BIBTEX
@article{BUT41838,
author="Jindřich {Petruška} and Libor {Janíček},
title="On the evaluation of strain inhomogeneity by hardness measurement of formed products",
journal="Journal of Materials Processing Technology",
year="2003",
volume="143-144",
number="12",
month="January",
issn="0924-0136"
}