Numerical modeling for powder-binder compound flow in metal injection molding

Takashi Iwai, Tatsuhiko Aizawa, Junji Kihara

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

To investigate the complex physical flow behavior of the powder-binder compound, and to optimize the process condition in the metal injection molding process, two numerical modelings have been developed. The first model is the granular model with composite element to evaluate the microscopic rheology of mixed compound. The smoothed particle modeling is applied in the mesoscopic level, to link both the micro- and the macroscopic physics of mixed compound. Here, both powder elements and binder flows are directly traced with consideration of cooling effect by thermo-mechanical coupling method. These numerical models especially focus on the prediction of the inner state of the mixed compound and the effects of powder characteristics to flowability and formability. Several numeral examples are demonstrated and compared with the short shot patterns of the actual tool molded products.

Original languageEnglish
Title of host publicationAdvances in Powder Metallurgy and Particulate Materials
PublisherMetal Powder Industries Federation
Volume2
Publication statusPublished - 1995
Externally publishedYes
EventProceedings of the 1995 International Conference & Exhibition on Powder Metallurgy & Partuculate Materials. Part 1 (of 3) - Seattle, WA, USA
Duration: 1995 May 141995 May 17

Other

OtherProceedings of the 1995 International Conference & Exhibition on Powder Metallurgy & Partuculate Materials. Part 1 (of 3)
CitySeattle, WA, USA
Period95/5/1495/5/17

Fingerprint

Metal molding
Injection molding
Powders
Binders
Formability
Rheology
Numerical models
Physics
Cooling
Composite materials

ASJC Scopus subject areas

  • Mechanical Engineering
  • Metals and Alloys

Cite this

Iwai, T., Aizawa, T., & Kihara, J. (1995). Numerical modeling for powder-binder compound flow in metal injection molding. In Advances in Powder Metallurgy and Particulate Materials (Vol. 2). Metal Powder Industries Federation.

Numerical modeling for powder-binder compound flow in metal injection molding. / Iwai, Takashi; Aizawa, Tatsuhiko; Kihara, Junji.

Advances in Powder Metallurgy and Particulate Materials. Vol. 2 Metal Powder Industries Federation, 1995.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Iwai, T, Aizawa, T & Kihara, J 1995, Numerical modeling for powder-binder compound flow in metal injection molding. in Advances in Powder Metallurgy and Particulate Materials. vol. 2, Metal Powder Industries Federation, Proceedings of the 1995 International Conference & Exhibition on Powder Metallurgy & Partuculate Materials. Part 1 (of 3), Seattle, WA, USA, 95/5/14.
Iwai T, Aizawa T, Kihara J. Numerical modeling for powder-binder compound flow in metal injection molding. In Advances in Powder Metallurgy and Particulate Materials. Vol. 2. Metal Powder Industries Federation. 1995
Iwai, Takashi ; Aizawa, Tatsuhiko ; Kihara, Junji. / Numerical modeling for powder-binder compound flow in metal injection molding. Advances in Powder Metallurgy and Particulate Materials. Vol. 2 Metal Powder Industries Federation, 1995.
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