IP Library › Granted Patent US 12,485,621
Granted Patent B2
US 12,485,621 · App. 17/895,792 · Granted Dec 2, 2025

Methods of additively manufacturing a manufactured component and systems that perform the methods

Inventors: Dana Alexander Henshaw (Seattle, WA); Eric M. Chapman (Bonney Lake, WA)
Assignee: The Boeing Company
B29C64/393B22F10/28B22F10/85B29C64/153B33Y10/00B33Y30/00B33Y50/02
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Quick Facts
Patent No.
US 12,485,621
App. No.
17/895,792
Granted
Dec 2, 2025
Kind
B2
Abstract

Methods of additively manufacturing a manufactured component and systems that perform the methods. The methods include determining an energy application parameter at an addition location on a previously formed portion of the manufactured component. The energy application parameter includes an intersection area relationship that describes an area of intersection between the previously formed portion and a surface of a virtual geometric shape, which is positioned at the addition location, as a function of a size parameter of the virtual geometric shape. The methods also include supplying a feedstock material to the addition location. The methods further include delivering an amount of energy sufficient to form a melt pool of the feedstock material at the addition location. The amount of energy is based, at least in part, on the energy application parameter. The methods also include consolidating the melt pool with a previously formed portion of the manufactured component.

Claims (50)

1 . A method of additively manufacturing a manufactured component, the method comprising:

determining an energy application parameter at an addition location on a previously formed portion of the manufactured component by:

(i) virtually positioning a virtual geometric shape at the addition location, wherein the virtual geometric shape is characterized by a size parameter that is indicative of a surface area of the virtual geometric shape;

(ii) during the virtually positioning, quantifying an area of intersection between the previously formed portion of the manufactured component and an outer surface of the virtual geometric shape;

(iii) repeating the virtually positioning and the quantifying for a plurality of different virtual geometric shapes, wherein each virtual geometric shape of the plurality of different virtual geometric shapes is characterized by a corresponding size parameter that differs from the size parameter of each other virtual geometric shape of the plurality of different virtual geometric shapes, and further wherein all proportions of each virtual geometric shape are identical to all proportions of each other virtual geometric shape;

(iv) producing an intersection area relationship that quantifies each area of intersection for each virtual geometric shape of the plurality of different virtual geometric shapes as a function of the corresponding size parameter for each virtual geometric shape; and

(v) determining the energy application parameter based, at least in part, on the intersection area relationship;

supplying a feedstock material to the addition location;

delivering, from an energy source and to the addition location, an amount of energy sufficient to form a melt pool of the feedstock material at the addition location, wherein the amount of energy is based, at least in part, on the energy application parameter, wherein the delivering the amount of energy includes delivering along an axis of incidence, and further wherein the virtual geometric shape is a shell of rotation about the axis of incidence; and

consolidating the melt pool with the previously formed portion of the manufactured component to form an additional portion of the manufactured component;

wherein a rate of change of the intersection area relationship with respect to the size parameter is less than a threshold rate of change; and

the method further includes determining that the addition location is proximate a gap within the previously formed portion of the manufactured component.

2 . The method claim 1 , wherein the intersection area relationship includes at least one of:

(i) a plot of the area of intersection as the function of the size parameter;

(ii) tabulated values of the area of intersection and corresponding values of the size parameter; and

(iii) a functional relationship between the area of intersection and the size parameter.

3 . The method of claim 1 , wherein, for every size parameter of the virtual geometric shape, there is a corresponding area of intersection that quantifies a surface area of an outer surface of the virtual geometric shape that extends within the previously formed portion of the manufactured component.

4 . The method of claim 1 , wherein the virtual geometric shape has a constant shape.

5 . The method of claim 1 , wherein, for a given size parameter, the virtual geometric shape has a given virtual geometric shape volume that corresponds to the given size parameter.

6 . The method of claim 1 , wherein the virtual geometric shape is an at least partially spherical virtual geometric shape.

7 . The method of claim 1 , wherein the size parameter is indicative of at least one of:

(i) a volume of the virtual geometric shape; and

(ii) a surface area of the virtual geometric shape.

8 . The method of claim 1 , wherein the size parameter includes at least one of:

(i) a radius of the virtual geometric shape;

(ii) a diameter of the virtual geometric shape;

iii) an effective radius of the virtual geometric shape; and

(iv) an effective diameter of the virtual geometric shape.

9 . The method of claim 1 , wherein the determining includes:

(i) determining, for a plurality of different size parameters of the virtual geometric shape, a corresponding plurality of areas of intersection between the previously formed portion of the manufactured component and the outer surface of the virtual geometric shape; and

(ii) producing the intersection area relationship based, at least in part, on the plurality of different size parameters and the corresponding plurality of areas of intersection.

10 . The method of claim 1 , wherein the virtually positioning includes virtually positioning a centroid of the virtual geometric shape at the addition location.

11 . The method of claim 9 , wherein the producing the intersection area relationship includes at least one of:

(i) producing a plot of the area of intersection as the function of the size parameter;

(ii) producing tabulated values of the area of intersection and corresponding values of the size parameter;

(iii) producing a functional relationship between the area of intersection and the size parameter;

(iv) determining a slope of the area of intersection as the function of the size parameter;

(v) determining an average slope of the area of intersection as the function of the size parameter;

(vi) determining a minimum slope of the area of intersection as the function of the size parameter;

(vii) determining the slope of the area of intersection as the function of the size parameter for a specific value of the size parameter; and

(viii) determining the slope of the area of intersection as the function of the size parameter.

12 . The method of claim 1 , wherein, during the producing, the method further includes omitting, from the area of intersection, intersection of the outer surface of the virtual geometric shape with a region of the previously formed portion of the manufactured component that is not contiguous with a region of the previously formed portion of the manufactured component that includes the addition location.

13 . The method of claim 1 , wherein the method further includes decreasing the amount of energy when the rate of change of the intersection area relationship with respect to the size parameter is less than a threshold rate of change.

14 . The method of claim 1 , wherein the method further includes increasing the amount of energy when the rate of change of the intersection area relationship with respect to the size parameter is greater than a threshold rate of change.

15 . The method of claim 1 , wherein the method further includes changing the amount of energy proportionate to the rate of change of the intersection area relationship with respect to the size parameter.

16 . The method of claim 1 , wherein the determining the energy application parameter further includes determining the energy application parameter based, at least in part, on a rate of thermal energy dissipation at the addition location.

17 . The method of claim 16 , wherein the rate of thermal energy dissipation is within the previously formed portion of the manufactured component.

18 . The method of claim 1 , wherein the determining the energy application parameter further includes determining the energy application parameter based, at least in part, on an angle of incidence between the addition location and the amount of energy.

19 . The method of claim 1 , wherein the determining the energy application parameter further includes determining the energy application parameter based, at least in part, on an efficiency of absorption of the amount of energy by the previously formed portion of the manufactured component.

20 . The method of claim 1 , wherein the determining the energy application parameter further includes determining the energy application parameter based, at least in part, on a material property of the feedstock material.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 25, 2022
From: HENSHAW, DANA ALEXANDER; CHAPMAN, ERIC M.
To: THE BOEING COMPANY
Reel/Frame 060904/0067 →
Continuity (1)
Related Publication 20240066803A1 · Feb 29, 2024
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