Method of manufacturing metal articles
AssigneeHamilton Sundstrand Corporation
InventorsEric Karlen, William Louis Wentland
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Abstract
A method for making an article is disclosed. According to the method, a digital model of the article is generated. The digital model is inputted into an additive manufacturing apparatus comprising an energy source. The additive manufacturing apparatus applies energy from the energy source to successively applied incremental quantities of a powder to fuse the powder to form the article corresponding to the digital model. The powder particles individually include a composite core including a first phase of a first metal and a second phase of a ceramic. A first shell including a second metal is disposed over the core.
Claims20
A method for making an article, comprising:
- inputting a digital model of the article into an additive manufacturing apparatus or system comprising an energy source;
- and
- repeatedly applying energy from the energy source to successively applied incremental quantities of a powder particles to fuse the powder particles to form the article corresponding to the digital model, wherein the powder particles individually comprise a composite core comprising a first phase comprising a first metal and a second phase comprising a ceramic, and a first shell over the core comprising a second metal.
A method for making a metal-ceramic composite powder, comprising:
- fabricating a porous pre-form comprising a ceramic;
- infiltrating the porous ceramic pre-form with a liquid comprising a first metal;
- solidifying the liquid to form a solid composite structure comprising ceramic and metal;
- mechanically breaking down the solid composite structure to form composite powder particles comprising the first metal and the ceramic.
A metal-ceramic composite powder, comprising particles that individually comprise;
- a composite core comprising a first phase comprising a first metal and a second phase comprising a ceramic;
- and
- a first shell over the core comprising a second metal.
Dependencies are inferred from the claim text.