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US 2026/0008097 A1Published application
Material and process for high throughput binder jet printing of titanium & particle reinforced titanium alloy parts
AssigneeSpirit AeroSystems, Inc.
InventorsRahbar Nasserrafi, Gerald Hicks, Paul Ray Toivonen, Daniel Klenosky
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Abstract
Titanium-based alloy powder formulations and methods for use with the powder formulations are disclosed. The formulations and methods disclosed herein enable rapid binder jet manufacturing of large high performance titanium parts.
Claims20
A powder formulation comprising:
- a titanium alloy;
- and
- one or more of:
- from about 5 wt. % to about 19 wt. % tin (Sn);
- no greater than 5 wt. % aluminum (Al);
- no greater than 5 wt. % antimony (Sb);
- and
- no greater than 2 wt. % bismuth (Bi).
5 more elements
A method of metal binder jet printing for forming a metal part, the method comprising:
- depositing a powder formulation onto a build platform to form a powder formulation layer, the powder formulation comprising:
- a titanium alloy;
- and
- one or more of:
- from about 5 to about 19 wt. % tin (Sn);
- no greater than 5 wt. % aluminum (Al);
- no greater than 5 wt. % antimony (Sb);
- and
- no greater than 2 wt. % bismuth (Bi);
- depositing binder onto the powder formulation layer to bond the powder formulation layer into a bound layer;
- and
- curing of the bound layer to form a metal part.
9 more elements
A method of metal binder jet printing for forming a metal part, the method comprising:
- depositing a powder formulation comprising a titanium alloy onto a build platform to form a powder formulation layer;
- depositing a binder onto the powder formulation layer to bond the powder formulation layer into a bound layer;
- curing the bound layer and removing the cured layer from any lose powder formulation;
- de-binding the cured layer;
- partially sintering the de-bonded layer;
- liquid metal infiltrating the partially-sintered metal part with a composition of one or more of:
- from about 5 wt. % to about 19 wt. % tin (Sn);
- no greater than 5 wt. % aluminum (Al);
- no greater than 5 wt. % antimony (Sb);
- and
- no greater than 2 wt. % bismuth (Bi);
- and
- heat treating the infiltrated partially-sintered metal part for a time period to solidify the metal part.
10 more elements
Dependencies are inferred from the claim text.