The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 02, 2013
Filed:
Dec. 19, 2005
Roger Neil Lumley, South Clayton, AU;
Robert Geoffrey O'donnell, South Clayton, AU;
Dayalan Romesh Gunasegaram, South Clayton, AU;
Michel Givord, South Clayton, AU;
Roger Neil Lumley, South Clayton, AU;
Robert Geoffrey O'Donnell, South Clayton, AU;
Dayalan Romesh Gunasegaram, South Clayton, AU;
Michel Givord, South Clayton, AU;
Commonwealth Scientific and Industrial Research Organisation, Australian Capital Territory, AU;
Abstract
A method for the heat treatment of a casting produced by high pressure die casting, that may exhibit blister forming porosity in the as-cast condition, of an age-hardenable aluminum alloy, includes solution treating the casting by heating the casting to and within a temperature range enabling solute elements to be taken into solid solution. The casting then is cooled to terminate the solution treatment by quenching the casting to a temperature below 100° C. The cooled casting is held in a temperature range enabling natural and/or artificial ageing. The solution treatment is conducted to achieve a level of solute element solution enabling age-hardening without expansion of pores in the casting causing unacceptable blistering of the casting.