Additively manufactured hollow body component with interior curved supports

Patent metadata

Field	Value
Publication number	US-2018371920-A1
Application number	US-201715632656-A
Country	US
Kind code	A1
Filing date	Jun 26, 2017
Priority date	Jun 26, 2017
Publication date	Dec 27, 2018
Grant date	—

Abstract

A hollowed body component made by additive manufacturing is disclosed. The hollow body has a longitudinal extent, an exterior surface and an interior surface, the interior surface having a first side and an opposing, second side. A first set of curved supports are curved along lengths thereof and extend between the first side and the opposing, second side to support the hollow body at least during the additive manufacturing thereof. Some embodiments include cooling passages open to the interior surface. Here, the curved supports extend between opposing pairs of passage-free spaces on the interior surface to support the hollow body at least during the additive manufacturing thereof. In one example, the component is an impingement insert for a hot gas path component.

First claim

What is claimed is:

1 . A component made by additive manufacturing, the component comprising:
a hollow body having a longitudinal extent, an exterior surface and an interior surface, the interior surface having a first side and an opposing, second side; and a first set of curved supports curved along lengths thereof and extending between the first side and the opposing, second side to support the hollow body at least during the additive manufacturing thereof.

2 . The component of claim 1 , further comprising:
a plurality of cooling passages open to the interior surface, the plurality of cooling passages arranged on the interior surface to have a first opposing pair of a first passage-free space extending along a first portion of the longitudinal extent on the first side and a second, opposing passage-free space extending along a second portion of the longitudinal extent on the opposing, second side; and wherein the first set of curved supports each extend between the first opposing pair of the first passage-free space and the second, opposing passage-free space to support the hollow body at least during the additive manufacturing thereof.

3 . The component of claim 2 , wherein at least one of the first and second passage-free spaces extend in a non-linear layout, and each of the first set of curved supports curve to accommodate the non-linear layout.

4 . The component of claim 3 , wherein the first set of curved supports collectively are arranged in a twisted plane.

5 . The component of claim 2 , wherein the first plurality of cooling passages are arranged on the interior surface to have at least one second opposing pair of the first passage-free space extending along the first portion of the longitudinal extent on the first side and the second, opposing passage-free space extending along the second portion of the longitudinal extent on the opposing, second side; and
further comprising a second set of curved supports curved along lengths thereof and extending between each of the at least one second opposing pair of the first passage-free space and the second, opposing passage-free space to support the hollow body at least during the additive manufacturing thereof.

6 . The component of claim 2 , wherein the component is an impingement insert for a hot gas path component, and further comprising a plurality of seating fins extending from the exterior surface for positioning the component inside the hot gas path component.

7 . The component of claim 2 , wherein the first set of curved supports have different spacing along at least one of the first and second portions of the longitudinal extent.

8 . The component of claim 1 , wherein at least one of the first set of curved supports includes a cross-bar arrangement.

9 . The component of claim 1 , wherein each passage-free space includes a fin extending therefrom, each of the first set of curved supports coupled at opposing ends thereof to a respective fin.

10 . An impingement insert for a hot gas path component, the impingement insert made by additive manufacturing, the impingement insert comprising:
a hollow body having a longitudinal extent, an exterior surface and an interior surface, the interior surface having a first side and an opposing, second side; a plurality of cooling passages passing between the exterior surface and the interior surface, the plurality of cooling passages arranged on the interior surface to have a first opposing pair of a first passage-free space extending along a first portion of the longitudinal extent on the first side and a second, opposing passage-free space extending along a second portion of the longitudinal extent on the opposing, second side; and a first set of curved supports extending between the first opposing pair of the first pas sage-free space and the second, opposing passage-free space to support the hollow body at least during the additive manufacturing thereof.

11 . The impingement insert of claim 10 , wherein at least one of the first and second pas sage-free spaces extend in a non-linear layout, and the first set of curved supports curve to accommodate the non-linear layout.

12 . The impingement insert of claim 11 , wherein each of the first set of curved supports curve to accommodate the non-linear layout.

13 . The impingement insert of claim 12 , wherein the first set of curved supports collectively are arranged in a twisted plane.

14 . The impingement insert of claim 10 , wherein the plurality of cooling passages are arranged on the interior surface to have at least one second opposing pair of the first passage-free space extending along the first portion of the longitudinal extent on the first side and the second, opposing passage-free space extending along the second portion of the longitudinal extent on the opposing, second side; and
further comprising a second set of curved supports extending between each of the at least one second opposing pair of the first passage-free space and the second, opposing passage-free space to support the hollow body at least during the additive manufacturing thereof.

15 . The impingement insert of claim 10 , wherein at least one of the first set of curved supports includes a cross-bar arrangement.

16 . The impingement insert of claim 10 , wherein the first set of curved supports have different spacing along at least one of the first and second portions of the longitudinal extent.

17 . The impingement insert of claim 10 , wherein each passage-free space includes a fin extending therefrom, each of the first set of curved supports coupled at opposing ends thereof to a respective fin.

18 . A non-transitory computer readable storage medium storing code representative of an impingement insert for a hot gas path component, the impingement insert physically generated upon execution of the code by a computerized additive manufacturing system, the code comprising:
code representing the impingement insert, the impingement insert including: a hollow body having a longitudinal extent, an exterior surface and an interior surface, the interior surface having a first side and an opposing, second side; a plurality of cooling passages passing between the exterior surface and the interior surface, the plurality of cooling passages arranged on the interior surface to have a first opposing pair of a first passage-free space extending along a first portion of the longitudinal extent on the first side and a second, opposing passage-free space extending along a second portion of the longitudinal extent on the opposing, second side; and a first set of curved supports extending between the first opposing pair of the first pas sage-free space and the second, opposing passage-free space to support the hollow body at least during the additive manufacturing thereof.

19 . The storage medium of claim 18 , wherein at least one of the first and second passage-free spaces extend in a non-linear layout, and the first set of curved supports curve along lengths thereof to accommodate the non-linear layout.

20 . The storage medium of claim 18 , wherein the plurality of cooling passages are arranged on the interior surface to have at least one second opposing pair of the first passage-free space extending along the first portion of the longitudinal extent on the first side and the second, opposing passage-free space extending along the second portion of the longitudinal extent on the opposing, second side; and
further comprising a second set of curved supports extending between each

Assignees

• Gen Electric

Inventors

• Packer Travis J
• Black Elisabeth Kraus
• Davidoff Robert William
• Snider Zachary John

Classifications

• F05D2250/75

  given by its similarity to a letter, e.g. T-shaped · CPC title

• F01D5/141

  Shape, i.e. outer, aerodynamic form (F01D5/148 - F01D5/20 take precedence; blade construction F01D5/147) · CPC title

• B29C67/246

  Moulding high reactive monomers or prepolymers, e.g. by reaction injection moulding [RIM], liquid injection moulding [LIM] (casting monomers B29C39/006, mixing construction B29B7/74) · CPC title

• B33Y80/00

  Products made by additive manufacturing · CPC title

• B22F5/04

  of turbine blades · CPC title