Applications of squeeze casting for automobile parts

Conference proceedings article

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Publication Details

Author list: Dulayapraphant P., Kittikhewtraweeserd E., Denmud N., Kritboonyarit P., Suranuntchai S.

Publisher: Trans Tech Publications

Publication year: 2014

Volume number: 773-774

Start page: 887

End page: 893

Number of pages: 7

ISBN: 9783037859216

ISSN: 0255-5476

eISSN: 1662-9752

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84891535190&doi=10.4028%2fwww.scientific.net%2fMSF.773-774.887&partnerID=40&md5=876a7b69334eb0e2078ae237fbedb86e

Languages: English-Great Britain (EN-GB)

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Abstract

With an increasing pressure on automotive weight reduction, the demand on the lighter weight automotive components continues to increase. In recent years, squeeze casting processes have been used with different aluminium alloys to produce high integrity automotive parts. In this study, the indirect squeeze casting processes is adopted to cast a motorcycle's component originally produced by a high pressure die casting process using aluminium alloy ADC12. To minimize amount of gas porosity inside squeeze casts, concepts of (1) minimization of ingate velocity along with (2) bottom filling pattern during the die filling, and (3) maximization of intensification's casting pressure are applied. Then parts are casted with both conventional high pressure die casting and indirect squeeze casting processes. Comparative evaluation of mechanical properties was made between HPDC casts and squeeze casts both in as-cast and heat treated conditions. Results from the experiment have shown that squeeze casts can pass the blister test at 490ฐC for 2.5 hours. Then, squeeze casts are heat treated by solution treatment at 484ฐC for 20 minutes and artificial age at 190ฐC for 2.5 hours, respectively. This improves UTS of the heat treated squeeze cast to 254.14 MPa with 1.84% of elongation, while the UTS of as cast condition from both processes is not significantly different. ฉ (2014) Trans Tech Publications, Switzerland.

Keywords

High pressure die casting (HPDC)