Material parameters for a numerical simulation of a compaction process for sintered double-height gears

Tomaž Verlak (Author), Marko Šori (Author), Srečko Glodež (Author)

Abstract

This paper presents the initial material parameters for the Ecka Alumix 231 aluminum-powdered metal required for a successful numerical simulation of a compaction process for sintered components with a proper software package. Experimental work was used to obtain Drucker-Prager-cap (DPC) model material parameters with the help of a Brazilian disc test and a uniaxial compression test for the linear part of the DPC model in the equivalent pressure stress/deviatoric stress (p-q) plane. The specimens used for this test were cylindrical probes (greens) that were compacted with a mechanical press and then compressed to the failure point in the axial and radial directions.

Keywords

aluminum-based powder;compaction process;Drucker-Prager cap model;numerical simulation;Ecka Alumix 231;

Data

Language:	English
Year of publishing:	2015
Typology:	1.04 - Professional Article
Organization:	UM FS - Faculty of Mechanical Engineering
Publisher:	Inštitut za kovinske materiale in tehnologije Ljubljana
UDC:	519.61/.64:621.762.5:669.71
COBISS:	19001366
ISSN:	1580-2949
Parent publication:	Materiali in tehnologije
Views:	980
Downloads:	373
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	Slovenian
Secondary title:	Materialni parametri za numerično simulacijo postopka stiskanja sintranih dvovišnskih zobnikov
Secondary abstract:	V članku so predstavljeni začetni materialni parametri za aluminijev prah Ecka Alumix 231, ki so potrebni za uspešno izvedbo numerične simulacije stiskanja sintranih komponent s primerno programsko opremo. S porušitvenimi preizkusi in pridobljenimi eksperimentalnimi rezultati je bilo mogoče določiti potrebne parametre materiala z Drucker-Prager-jevim cap (DPC) modelom, ki določajo linearno območje DPC modela v grafu ekvivalentne tlačne obremenitve v odvisnosti od deviatorične obremenitve. Uporabljeni so bili cilindrični preizkušanci (zelenci), ki so bili stisnjeni z mehansko stiskalnico in kasneje obremenjeni do porušitve v osni in radialni smeri.
Secondary keywords:	aluminijev prah;stiskanje;Drucker-Prager-jev cap mode;numeri~na simulacija;Ecka Alumix 231;
URN:	URN:NBN:SI
Type (COBISS):	Scientific work
Pages:	str. 841-844
Volume:	ǂLetn. ǂ49
Issue:	ǂšt. ǂ5
Chronology:	2015
DOI:	10.17222/mit.2014.262
ID:	9142079