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TECHNICAL PAPERS

Shot Sleeve Wave Dynamics in the Slow Phase of Die Casting Injection

[+] Author and Article Information
J. López

E.T.S. de Ingenieros Industriales, Universidad Politécnica de Cartagena, 30203 Cartagena, Spain

J. Hernández

E.T.S. de Ingenieros Industriales, UNED, Ciudad Universitaria, 28040 Madrid, Spain

F. Faura

E.T.S. de Ingenieros Industriales, Universidad Politécnica de Cartagena, 30203 Cartagena, Spaine-mail: JHernandez@ind.uned.es

G. Trapaga

Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139

J. Fluids Eng 122(2), 349-356 (Feb 16, 2000) (8 pages) doi:10.1115/1.483264 History: Received October 13, 1998; Revised February 16, 2000
Copyright © 2000 by ASME
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References

Figures

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Schematic sketch of a typical die casting machine
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Schematic representation of the problem and coordinate system
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Minimum initial filling fraction, fmin, as a function of ξ, for the motion law of Eq. (15)
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Wave profiles at t=tc, satisfying the condition xc=L, for different values of the initial filling fraction and ξ, for the motion law of Eq. (15)
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Nondimensional filling time as a function of ξ for different values of f and the motion law of Eq. (15), for operating conditions satisfying xc=L
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Comparison of the optimum value of α predicted in this work and that obtained by Tszeng and Chu 4 for a plunger stroke L=18 in., with experimental measurements by Duran et al. 7
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Experimental measurements of entrapped air volume by Duran et al. 7
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Minimum initial filling fraction, fmin, as a function of n, for the motion law of Eq. (37)
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Nondimensional filling time as a function of n for different values of f and the motion law of Eq. (37), for operating conditions satisfying xc=L
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Evolution of the wave profile with t/tc for different values of the initial filling fraction and the optimum plunger acceleration law of Eq. (54)

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