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US 10,328,523 B2Granted
Fluted additive manufacturing deposition head design
AssigneeROLLS-ROYCE plc
InventorsPavlo Earle, Brandon David Ribic, Quinlan Yee Shuck, Johnny D. Grubbs
Life of this patent
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Abstract
A material deposition head may include a body that defines first and second ends, an exterior surface, an interior surface, and one or more material delivery channels, where the exterior surface includes fluting. In some examples, a system may include a fluted material deposition head, a fluidized powder source, and an energy source.
Claims18
A material deposition head comprising:
- a body defining a first end and a second end, wherein the body further defines:
- an exterior surface, at least a portion of the exterior surface of the material deposition head extending from the first end of the body to the second end of the body;
- an interior surface defining an internal passage extending from the first end to the second end;
- and
- a material delivery channel extending from proximate to the first end of the body to proximate to the second end of the body, wherein the material delivery channel is configured to permit passage of a fluidized powder therethrough, wherein the at least portion of the exterior surface includes fluting configured to increase a surface area of the exterior surface of the body and increase convection-driven cooling of the material deposition head, wherein the fluting of the exterior surface comprises a plurality of peaks connected by a plurality of troughs, wherein the plurality of peaks are oriented in a direction substantially orthogonal to a major axis of the body that extends from the first end to the second end, and wherein at least some troughs of the plurality of troughs of the at least a portion of the exterior surface of the body form a curve in axial cross-section with each end of the curve terminating at a point of a peak of the plurality of peaks or at an edge of a planar surface of the peak.
2 more elements
A system comprising:
- a material deposition head comprising a body defining a first end and a second end, wherein the body further defines:
- an exterior surface, at least a portion of an exterior surface of the material deposition head extending from the first end of the body to the second end of the body;
- an interior surface defining an internal passage extending from the first end to the second end, wherein the internal passage is configured to permit passage of an energy beam therethrough;
- a material delivery channel extending from proximate to the first end of the body to proximate to the second end of the body, wherein the material delivery channel is configured to permit passage of a fluidized powder therethrough, wherein the at least a portion of the exterior surface includes fluting configured to increase a surface area of the exterior surface of the body and increase convection-driven cooling of the material deposition head, wherein the fluting of the exterior surface comprises a plurality of peaks connected by a plurality of troughs, wherein the plurality of peaks are oriented in a direction substantially orthogonal to a major axis of the body that extends from the first end to the second end, and wherein at least some troughs of the plurality of troughs of the at least a portion of the exterior surface of the body form a curve in axial cross-section with each end of the curve terminating at a point of a peak of the plurality of peaks or at an edge of a planar surface of the peak;
- a fluidized powder source coupled to the material delivery channel;
- and
- an energy source coupled to the internal passage.
4 more elements
Dependencies are inferred from the claim text.