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HomeKey Engineering MaterialsKey Engineering Materials Vols. 651-653Mechanical Properties of Thixoformed 7075...

Mechanical Properties of Thixoformed 7075 Feedstock Produced via the Direct Thermal Method

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Abstract:

Abstracts: This paper presents an overview of measured mechanical properties of thixoformed aluminium 7075 feedstock produced by the direct thermal method (DTM). The DTM feedstock billets were processed with a pouring temperature of 685 °C and holding periods of 20 s, 40 s and 60 s before being quenched and subsequently thixoformed. A conventionally cast feedstock billet was produced with a pouring temperature of 685 °C and was allowed to solidify without quenching. The feedstock billets were later formed by an injection test unit in the semi-solid state. Tensile testing was then conducted on the thixoformed feedstock billets. Tensile properties for 7075 DTM thixoformed feedstock billets were found significantly influenced by the thixoformed component density. Samples with longer holding times were found to have higher density and higher tensile strength.

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Periodical:

Key Engineering Materials (Volumes 651-653)

Pages:

1569-1574

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.651-653.1569

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Online since:

July 2015

Authors:

Asnul Hadi Ahmad*, Sumsun Naher, Dermot Brabazon

Keywords:

Aluminium 7075, Direct Thermal Method, Mechanical Properties, Semi-Solid Metal, Thixoforming

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* - Corresponding Author

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