Paper Titles
The Effect of Initial Microstructure of A356 Alloys on the Mechanical Behavior in the Semisolid State
p.449
Study on Microstructures and Mechanical Properties of Rheo-Die Casting Semi-Solid A356 Aluminum Alloy
p.453
Fluid Flow Investigation of Die Cast Tensile Test Bars
p.457
Rheoforging of Steel
p.464
Influence of Slurry Temperature and Gate Velocity on Injection Molding of Magnesium Alloys
p.468
The SEED Technology for Semi-Solid Processing of Aluminum Alloys: A Metallurgical and Process Overview
p.472
Semi-Solid Casting of Metal Matrix Nanocomposites
p.478
Potential of the Rheocasting Process, Demonstrated on Different Aluminum Based Alloy Systems
p.484
Mechanical and Microstructural Properties Investigation on Rheocast Automotive Parts Using A356 Alloy
p.489

Influence of Slurry Temperature and Gate Velocity on Injection Molding of Magnesium Alloys

Article Preview

Abstract:

In the present study, the influence of the slurry temperature and the gate velocity on the apparent density of molded products was investigated using a thixomolding machine and a die having a rectangular parallelepiped cavity. Magnesium alloy of AZ91D was injected into the cavity through a rectangular gate. The gate velocity was varied from 0.4 m/s to 6.0 m/s and the slurry temperature was changed between 853K and 903K, respectively. The die temperature was fixed at about 513K. The results were as follows. The apparent density of the molded products at a constant gate velocity was decreased gradually with an increase in the slurry temperature in cases the slurry temperature was lower than 863K, however, it decreased suddenly at around the slurry temperature of 873K, and then it took an almost constant value when the slurry temperature was over 873K. The apparent density of the molded products at a constant slurry temperature was decreased greatly with an increase in the gate velocity in the case the slurry temperature was over 873K, however, it decreases slowly as the gate velocity increased for cases the slurry temperature was under 863K.

You might also be interested in these eBooks
Semi-Solid Processing of Alloys and Composites View Preview

Info:

Periodical:

Solid State Phenomena (Volumes 116-117)

Pages:

468-471

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.116-117.468

Citation:

Cite this paper

Online since:

October 2006

Authors:

Koichi Ozaki, Kazuya Tsuji, Tadao Fukuta, Takahito Nomoto, Kengo Takeya, Teiji Hayakawa

Keywords:

AZ91D, Density, Gate Velocity, Magnesium Alloy, Slurry Temperature, Thixomolding®

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2006 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

References

[1] The Japan Magnesium Association: Handbook of Advanced Magnesium Technology (Kallos Publishing, Japan 2000).

Google Scholar

[2] A. Einstein: Ann. Phys. Vol. 17 (1905), p.549 Figure 9 Variation of ρm/ρs with Rea. 103 104.

Google Scholar

90.

Google Scholar

91.

Google Scholar

92.

Google Scholar

93.

Google Scholar

94.

Google Scholar

95.

Google Scholar

96.

Google Scholar

97.

Google Scholar

98.

Google Scholar

99.

Google Scholar

[1] 00 Re a ρm / ρs Tf [K] 853 858 873 903 863 Figure 8 Relationship between ρm and Tf. 840 860 880 900 920 1450 1500 1550 1600 1650 1700 1750 1800 1850 Tf [ K ] ρ m [kg /m 3] U [m/s].

Google Scholar

4.

Google Scholar

8.

Google Scholar

[2] 0.

Google Scholar

[4] 0.

Google Scholar

[6] 0 ρs = 1810 [kg/m 3].

Google Scholar