| Issue |
MATEC Web Conf.
Volume 326, 2020
The 17th International Conference on Aluminium Alloys 2020 (ICAA17)
|
|
|---|---|---|
| Article Number | 06001 | |
| Number of page(s) | 8 | |
| Section | Casting & Solidification, Recycling, Fundamentals of Additive Manufacturing | |
| DOI | https://doi.org/10.1051/matecconf/202032606001 | |
| Published online | 05 November 2020 | |
Low-Pressure Casting of Aluminium AlSi7Mg03 (A356) in Sand and Permanent Molds
1 Centre de Métallurgie du Québec, 3095 Westinghouse, Trois-Rivières, Qc, Canada G9A 5E1
2 Collège de Trois-Rivières, 3500 de Courval, Trois-Rivières, Qc, Canada, G9A 5E6
* Corresponding author: franco.chiesa@cegeptr.qc.ca
Aluminium A356 (AlSi7Mg03) is the most common foundry alloy poured in sand and permanent molds or lost-wax shells. Because of its magnesium content, this alloy responds to a precipitation hardening treatment. The strength and ductility combination of the alloy can be varied at will by changing the temper treatment that follows the solutionizing and quenching of the part. By feeding the mold from the bottom, the low-pressure process provides a tranquil filling of the cavity. A perfect control of the liquid metal stream is provided by programming the pressure rise applied on the melt surface. It compares favorably to the more common gravity casting where a turbulent filling is governed by the geometry of the gating system.
© The Authors, published by EDP Sciences, 2020
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