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Titolo:
Dynamic powder compaction for parts with high-aspect ratio
Autore:
Sukegawa, N; Sano, T; Horikoshi, S; Takeishi, H;
Indirizzi:
Chiba Inst Technol, Dept Precis Engn, Chiba 2758588, Japan Chiba Inst Technol Chiba Japan 2758588 Precis Engn, Chiba 2758588, Japan AIST, MITI, Mech Engn Lab, Mfg Syst Dept, Tsukuba, Ibaraki 3058564, Japan AIST Tsukuba Ibaraki Japan 3058564 Dept, Tsukuba, Ibaraki 3058564, Japan Adv Engn Serv, Tsukuba, Ibaraki 3050032, Japan Adv Engn Serv Tsukuba Ibaraki Japan 3050032 ukuba, Ibaraki 3050032, Japan
Titolo Testata:
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
fascicolo: 6-7, volume: 24, anno: 2000,
pagine: 561 - 570
SICI:
0734-743X(200006/07)24:6-7<561:DPCFPW>2.0.ZU;2-S
Fonte:
ISI
Lingua:
ENG
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
10
Recensione:
Indirizzi per estratti:
Indirizzo: Sukegawa, N Chiba Inst Technol, Dept Precis Engn, 2-17-1 Tsudanuma, Chiba 2758588, Japan Chiba Inst Technol 2-17-1 Tsudanuma Chiba Japan 2758588 Japan
Citazione:
N. Sukegawa et al., "Dynamic powder compaction for parts with high-aspect ratio", INT J IMPAC, 24(6-7), 2000, pp. 561-570

Abstract

A computer program has been developed to analyse one-dimensional elasto-plastic wave propagation in a powder-filled container. A numerical integration along characteristic curves is introduced in this program. Characteristiccurves are derived from an equation of motion, a constitutive equation anda compatibility equation. In the constitutive equation, the effect of strain rate is taken into consideration. Using this computer program, loading conditions to obtain uniform strain distribution are examined, varying parameters such as the duration and peak of impulses. The following results were obtained: (1) the increase in strain near the fixed end of the container caused by the reflection of the plastic wave contributes to the uniform strain distribution; (2) this wave reflection has the same effect as the usage of a floating die; and (3) for the part with a specific aspect ratio, there is an optimum condition of the duration and peak of the impulse. (C) 2000 Elsevier Science Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 10/07/20 alle ore 15:54:11