Title: Article and method for making an article

Abstract

An article and a method for making shaped cooling holes in an article are provided. The method includes the steps of depositing a metal alloy powder to form an initial layer including at least one aperture, melting the metal alloy powder with a focused energy source to transform the powder layer to a sheet of metal alloy, sequentially depositing an additional layer of the metal alloy powder to form a layer including at least one aperture corresponding to the at least one aperture in the initial layer, melting the additional layer of the metal alloy powder with the focused energy source to increase the sheet thickness, and repeating the steps of sequentially depositing and melting the additional layers of metal alloy powder until a structure including at least one aperture having a predetermined profile is obtained. The structure is attached to a substrate to make the article.

Inventors:

Lacy, Benjamin Paul; Schick, David Edward; Kottilingam, Srikanth Chandrudu

Issue Date:

Tue Apr 03 00:00:00 EDT 2018

Research Org.:

General Electric Co., Schenectady, NY (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1433374

Patent Number(s):

9931695

Application Number:

14/496,766

Assignee:

General Electric Company, Schenectady, NY

Patent Classifications (CPCs):

B - PERFORMING OPERATIONS B22 - CASTING B22F - WORKING METALLIC POWDER

B - PERFORMING OPERATIONS B23 - MACHINE TOOLS B23K - SOLDERING OR UNSOLDERING

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B - PERFORMING OPERATIONS B22 - CASTING B22F - WORKING METALLIC POWDER

B22F5/009 - {of turbine components other than turbine blades
B22F7/08 - with one or more parts not made from powder {

B - PERFORMING OPERATIONS B23 - MACHINE TOOLS B23K - SOLDERING OR UNSOLDERING

B23K2101/001 - {Turbines}
B23K26/342 - Build-up welding
B23K35/304 - {with Cr as the next major constituent}
B23K35/3046 - {Co as the principal constituent}

B - PERFORMING OPERATIONS B29 - WORKING OF PLASTICS B29C - SHAPING OR JOINING OF PLASTICS

B29C64/153 - using layers of powder being selectively joined, e.g. by selective laser sintering or melting

B - PERFORMING OPERATIONS B32 - LAYERED PRODUCTS B32B - LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM

B32B15/01 - all layers being exclusively metallic {

B - PERFORMING OPERATIONS B33 - ADDITIVE MANUFACTURING TECHNOLOGY B33Y - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING

B33Y10/00 - Processes of additive manufacturing
B33Y80/00 - Products made by additive manufacturing

C - CHEMISTRY C22 - METALLURGY C22C - ALLOYS

C22C19/055 - {with the maximum Cr content being at least 20% but less than 30%}
C22C19/056 - {with the maximum Cr content being at least 10% but less than 20%}
C22C19/057 - {with the maximum Cr content being less 10%}
C22C19/07 - based on cobalt

C - CHEMISTRY C23 - COATING METALLIC MATERIAL C23C - COATING METALLIC MATERIAL

C23C24/106 - {Coating with metal alloys or metal elements only}
C23C28/02 - only coatings {only including layers} of metallic material
C23C28/022 - {with at least one MCrAlX layer}
C23C28/34 - {including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates}

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS

Y02P10/25 - by increasing the energy efficiency of the process

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DOE Contract Number:  

FC26-05NT42643

Resource Type:

Patent

Resource Relation:

Patent File Date: 2014 Sep 25

Country of Publication:

United States

Language:

English

Subject:

42 ENGINEERING