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US 7,441,585 B2Granted
Apparatus and method for reducing operating stress in a turbine blade and the like
AssigneeUnited Technologies Corporation
InventorsEdwin Otero, Patrick Strong
Life of this patent
Estimating the term…
Abstract
A core for casting a metal part having a body with solid portions spaced apart by hollow portions. The body includes at least one support element extending between adjacent solid portions. The support element provides stiffness and strength for the casting core during the casting process. The support element has an optimized shape to prevent the core from fracturing during the casting process and to minimize operating stress in the metal part around the area formed by the support element.
Claims18
A core for casting a metal part, comprising:
- a body having solid portions spaced apart by hollow portions;
- and
- at least one support element extending between adjacent solid portions, the at least one support element having a shape optimized to prevent the core from fracturing during a casting process and to minimize operating mechanical stress in the area of the metal part formed by the support element, said shape of said at least one support element including a cross-sectional shape having a thickness at a central location that is greater than a thickness at either side of said cross-sectional shape.
Dependencies are inferred from the claim text.