US 10,369,625 B2Granted

Arcuate directionally solidified components and manufacture methods

AssigneeUnited Technologies Corporation

InventorsDilip M. Shah, Paul D. Genereux, Alan D. Cetel, John J. Marcin, Jr., Steven J. Bullied, Mario P. Bochiechio, Kevin W. Schlichting, Bradford A. Cowles, Carl R. Verner, David U. Furrer, Venkatarama K. Seetharaman

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Abstract

A method for casting comprising: providing a seed, the seed characterized by: an arcuate form and a crystalline orientation progressively varying along an arc of the form; providing molten material; and cooling and solidifying the molten material so that a crystalline structure of the seed propagates into the solidifying material.

Claims22

Dependent claims

A method for casting comprising:

providing a seed, the seed characterized by:
an arcuate form and a crystalline orientation progressively varying relative to a fixed frame of reference along an arc of the form;
providing molten material;
and
cooling and solidifying the molten material so that a crystalline structure of the seed propagates into the solidifying material.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/731,768Filed 5 Jun 2015 · us provisional application
Priority: 6 Jun 2014
Published: US 2016/0031006 A14 Feb 2016
Granted: 6 Aug 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification39 codes

B22D 27/04
Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting: influencing the temperature of the metal, e.g. by…
B22D 7/04
Casting ingots, e.g. from ferrous metals: casting hollow ingots
B22D 19/0054
Casting in, on, or around objects which form part of the product: rotors, stators for electrical motors
B22D 21/025
Casting exceedingly oxidisable non-ferrous metals, e.g. in inert atmosphere: casting heavy metals with high melting point, i.e. 1000 - 1600…