Squeeze pin implementation in a high pressure die casting Binney, Matthew, Dargusch, Matthew, Nave, Mark and McKinney, Peter 2003, Squeeze pin implementation in a high pressure die casting, in Proceedings of the 1st International Light Metals Technology Conference, CAST, Brisbane, Qld., pp. 239-242. Attached Files Name Description MIMEType Size Downloads Title Squeeze pin implementation in a high pressure die casting Author(s) Binney, Matthew Dargusch, Matthew Nave, Mark McKinney, Peter Conference name International Light Metals Technology. Conference (1st: 2003: Brisbane, Qld.) Conference location Brisbane, Qld. Conference dates 18-20 Sep. 2003 Title of proceedings Proceedings of the 1st International Light Metals Technology Conference Editor(s) Dahle, Arne Publication date 2003 Conference series International Light Metals Technology Conference Start page 239 End page 242 Total pages 5 Publisher CAST Place of publication Brisbane, Qld. Summary This paper discusses the implementation of hydraulically operated squeeze pins to reduce porosity formation in cast aluminium bearing caps. Two complete sets are cast in an eight-cavity die with a 2000t cold chamber high pressure die casting machine. The initial die configuration used a sliding core assembly with stationary pins to core a through hole in a thick section of the front cam caps. This configuration resulted in high post machining scrap rates, primarily due to porosity associated with solidification shrinkage. Replacement of the sliding core assembly with a squeeze pin unit substantially reduced shrinkage porosity in the critical region, with consequent reductions in the scrap rate. The squeeze pins are actuated 1.5s after the piston reaches the high shot changeover position, but can be successfully engaged between I and 3.5 seconds after high shot changeover. Density measurements and visual inspection confirmed the substantial improvement in porosity levels in the critical region of the castings. ISBN 0975132903 9780975132906 Language eng Field of Research 091207 Metals and Alloy Materials HERDC Research category E1 Full written paper - refereed Copyright notice ©2003, CAST Persistent URL http://hdl.handle.net/10536/DRO/DU:30009600 Document type: Conference Paper Collection: School of Engineering and Technology   Unless expressly stated otherwise, the copyright for items in DRO is owned by the author, with all rights reserved. Versions Version Filter Type Tue, 03 Mar 2009, 13:08:19 EST Wed, 08 Apr 2009, 14:15:12 EST Wed, 05 May 2010, 11:53:11 EST Wed, 05 May 2010, 11:55:54 EST Wed, 09 Nov 2011, 13:01:30 EST Wed, 13 Jun 2012, 12:26:22 EST Thu, 14 Jun 2012, 08:20:44 EST Filtered Full Citation counts:   Cited 0 times in TR Web of Science Cited 0 times in Scopus Search Google Scholar Access Statistics: 3111 Abstract Views, 1 File Downloads  -  Detailed Statistics Created: Tue, 14 Oct 2008, 07:00:00 EST

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