Method of centrifugally casting reinforced composite articles
AssigneeThe United States of America as represented by the Secretary of the Navy
InventorsAmarnath P. Divecha, Subhash D. Karmarkar, William A. Ferrando, Scott M. Hoover
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Abstract
The article is produced by prepositioning nonwoven reinforcement made of a etallic mesh to which ceramic tiles are wired inside of a centrifugal casting mold. Molten matrix metal is then introduced into the mold while being rotated about an axis parallel to the inflow path of the molten metal until it completely encapsulates the reinforcement.
Claims6
In a process of forming a composite article made of metal having metallic mesh to which ceramic tiles are wired as a nonwoven reinforcement therein, including the steps of:
- positioning the reinforcement within a mold of a centrifugal casting device;
- gravitationally introducing the metal in a molten state along an inflow path into the mold to encapsulate the reinforcement;
- maintaining the mold during said introduction of the metal under an internal temperature enhancing bonding between the reinforcement and the metal;
- and rotating the mold, during said introduction of the metal, about an axis parallel to said inflow path.
A process of forming a composite article having a nonwoven metallic mesh with ceramic tiles wired thereto to form a reinforcement, including the steps of:
- positioning the reinforcement inside of a centrifugal casting mold;
- imparting rotation to the mold with the reinforcement positioned therein;
- introducing molten matrix metal into the mold during said rotation thereof to encapsulate the reinforcement therein;
- and cooling the matrix metal encapsulating the reinforcement within the mold to complete a casting operation.
A process of forming a composite article by a centrifugal casting operation in a rotating mold, including the steps of:
- positioning metallic mesh with ceramic tiles wired thereto as nonwoven reinforcement inside of the mold;
- introducing molten matrix metal along a gravitational inflow path into the mold until the metal completely encapsulates the reinforcement;
- and cooling the metal to solidification forming the composite article with the reinforcement incorporated therein.
Dependencies are inferred from the claim text.