Comparing the SEED Semi-Solid Process to Low Pressure Permanent Mould in the Production of 4mm Thick Aluminum A356 Covers

Franco Chiesa; David Levasseur; Jocelyn Baril

doi:10.4028/www.scientific.net/MSF.765.112

Paper Titles

A Model of Inclusion Behaviour in Liquid Aluminium
p.92

Refinement of the Microstructure of an Al-Mg₂Si Hypereutectic Alloy by Intensive Melt Shearing
p.97

Exploring the Use of a Synchrotron X-Ray Scattering Method to Investigate Nucleation
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Effect of Si Content on the Size of Fe-Rich Intermetallic Particles in Al-xSi-0.8Fe Alloys
p.107

Comparing the SEED Semi-Solid Process to Low Pressure Permanent Mould in the Production of 4mm Thick Aluminum A356 Covers
p.112

Effect of Ca Level on the Formation of Silicon Phases during Solidification of Hypereutectic Al-Si Alloys
p.117

A Brief History of the Grain Refinement of Cast Light Alloys
p.123

Study of the Effect of Cooling Rate on Eutectic Modification in A356 Aluminium Alloys
p.130

The Effect of Superheating and Cooling Rate on Primary Precipitation of Si in Hypereutectic Al-Si Alloys
p.135

HomeMaterials Science ForumMaterials Science Forum Vol. 765Comparing the SEED Semi-Solid Process to Low...

Comparing the SEED Semi-Solid Process to Low Pressure Permanent Mould in the Production of 4mm Thick Aluminum A356 Covers

Abstract:

In order to compare the semi-solid SEED casting process to the Low Pressure Permanent Mould process (LPPM), the same part has been produced in aluminium A356 (AlSi7Mg04) using the two methods. The processes were first compared from an operational standpoint: pouring temperature, filling sequence, production rate and mould maintenance. In addition, the metallurgical quality of the castings was evaluated by measuring the tensile properties at 6 locations in the part; the metallographic structures were also compared. Filling and solidification modeling allowed the prediction of the filling sequence and local solidification times everywhere in the casting. The SEED process was generally found to deliver a finer structure, a near net shape casting and a much higher productivity. LPPM parts were more uniform in structural and mechanical properties as verified at 6 locations in the castings.

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Periodical:

Materials Science Forum (Volume 765)

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112-116

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.765.112

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Online since:

July 2013

Authors:

Franco Chiesa, David Levasseur, Jocelyn Baril

Keywords:

Aluminium Alloy, Low-Pressure Casting, Semi-Solid Die Casting

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