Method and apparatus for making ceramic cores and other articles
AssigneeHowmet Research Corporation
InventorsKen Ervin Fosaaen, Travis Lee Yates, Robert Eugene Measley
Life of this patent
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Abstract
A green ceramic core or other article at elevated temperature is placed between a complaint member and a relatively rigid setter while the green core or article cools to a lower temperature. The compliant member can comprise a fluid pressurized compliant bladder or a compliant, non-rigid setter or facing layer thereon for contacting a side of the green core or article.
Claims7
A method of making a ceramic core, comprising molding a ceramic material in a core mold or die to form a green core having a pre-molded core shape, removing said green core while being at an elevated temperature from said core mold or die, positioning said green ceramic core having said pre-molded shape and being at said elevated temperature between a rigid core setter and a compliant member, and holding said green core under pressure between and in contact with said rigid core setter and said compliant member while said green core cools to a lower temperature.
Dependencies are inferred from the claim text.