Open Access System for Information Sharing

Login Library

 

Article
Cited 0 time in webofscience Cited 0 time in scopus
Metadata Downloads

Pressure Transmission in the Compaction Process for Nickel Powder using Finite Element Methods SCIE SCOPUS

Title
Pressure Transmission in the Compaction Process for Nickel Powder using Finite Element Methods
Authors
BAEK, JONG WONPARK, SEONG JIN
Date Issued
2019-02
Publisher
KOREAN INST METALS MATERIALS, KIM BLDG 6TH FLOOR, SEOCHO-DAERO 56 GIL 38, SEOCHO-GU, SEOUL 137-881, SOUTH KOREA
Abstract
The compression process is one of the more widely used industrial manufacturing methods for fabricating desired shape of specimens with various materials such as metals and ceramics. In the compaction process, the upper punch moves into the powder, and force is transmitted between particles, then achieving densification. In this process, the powder can be considered to be in a particulate state, which means that while the powder consists of solids, it has characteristics quite similar to the fluid. Therefore, particles in the process can be seen as responding to hydrostatic pressure, and it can be assumed that the pressure is constant. However, the forces acted on the inter-particle continue to change during the process. Many parameters affect the force change, including compaction speed and the contact angle between particles. However, it is very difficult to verify these effects through experiments because it is impossible to arrange the inter-particle angle. Therefore, in this study, the force transmission mechanism was simulated in the compaction process using FEM simulation. To examine the contact angle and force transmission between the particles, a green compact was modeled as individual particles rather than as a continuum green compact. Finally, it was confirmed through analysis that the pressure transmission between the particles remained constant during the compression process.
URI
https://oasis.postech.ac.kr/handle/2014.oak/100250
DOI
10.3365/KJMM.2019.57.2.115
ISSN
1738-8228
Article Type
Article
Citation
Korean Journal of Metal and Materials, vol. 57, no. 2, page. 115 - 123, 2019-02
Files in This Item:

qr_code

  • mendeley

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Related Researcher

Researcher

박성진PARK, SEONG JIN
Dept of Mechanical Enginrg
Read more

Views & Downloads

Browse