Theory and Technology of Semisolid Metal Molding |
| Journal |
Solid State Phenomena (Volumes 141 - 143) |
| Volume |
Semi-Solid Processing of Alloys and Composites X |
| Edited by |
G. Hirt, A. Rassili, A. Bührig-Polaczek |
| Pages |
9-16 |
| DOI |
10.4028/www.scientific.net/SSP.141-143.9 |
| Online since |
July, 2008 |
| Authors |
Frank Czerwinski
|
| Keywords |
Magnesium Alloy, Near-Liquidus Molding, Particulate Feedstock, Semi-Solid Extrusion Molding, Semi-Solid Injection Molding, Thixomolding™ |
| Abstract |
Fundamentals of semisolid metal molding, including the particulate feedstock,
methods of its generation and features that make it useful for processing, are outlined.
Melting characteristics of the feedstock under sole influence of heat are considered, covering
a wide range of microstructural and microchemical factors, believed to be of importance at
high temperatures. The generation of the thixotropic slurry within the injection molding
system and its solidification behaviour are accompanied by detailed features of the molded
structures and their correlation with properties of net-shape components. In addition to
conventional techniques the novel processing concepts including near-liquidus molding,
semisolid extrusion molding as well as the alloy and composite generation in a semisolid
state are described. An update on commercialization progress is completed by a
characterization of the modern equipment used for process implementation with broad
references to metal die casting and plastics injection molding. |
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