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IJAT Vol.2 No.4 pp. 259-265
doi: 10.20965/ijat.2008.p0259
(2008)

Paper:

Optimum Velocity Control of Die Casting Plunger Accounting for Air Entrapment and Shutting

Ken'ichi Yano*, Kotaro Hiramitsu*, Yoshifumi Kuriyama*, and Seishi Nishido**

*Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu, Japan

**AISIN TAKAOKA CO., LTD., 1 Tennoh, Takaokashinmachi, Toyota, Aichi, Japan

Received:
March 29, 2008
Accepted:
May 20, 2008
Published:
July 5, 2008
Keywords:
die casting, optimization, CFD simulation, air entrapment, velocity control
Abstract

Die casting in mass production has the advantage of producing complex shapes precisely, but the disadvantage of air entrapment in high-speed injection molding. Plunger velocity control very effectively avoids air entrapment. Using computational fluid dynamics (CFD), we analyzed fluid behavior, the amount of air trapped, and air shutting caused by die casting plunger movement. We calculated optimum die casting plunger velocity control input to reduce or prevent air entrapment and air shutting in die casting products. We also conducted optimization using a genetic algorithm incorporating a CFD simulator.

Cite this article as:
Ken'ichi Yano, Kotaro Hiramitsu, Yoshifumi Kuriyama, and Seishi Nishido, “Optimum Velocity Control of Die Casting Plunger Accounting for Air Entrapment and Shutting,” Int. J. Automation Technol., Vol.2, No.4, pp. 259-265, 2008.
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