Method for making composite material object by plastic processing
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsKiyoshi Funatani, Tadashi Donomoto, Atsuo Tanaka, Yoshiaki Tatematsu
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Abstract
First a reinforcing material mass is formed from a quantity of reinforcing material by binding it together with inorganic binder, and then this reinforcing material mass is compounded with matrix metal to form a composite material mass. Then the composite material mass is heated up so that the proportion of the matrix metal thereof which is in the liquid phase is at least 40%, and while still hot it is subjected to a plastic processing process to form the composite material object.
Claims10
A method of forming an article of composite material of predetermined shape comprising the steps of:
- (a) forming a mass of reinforcing material bound with an inorganic binder;
- (b) compounding said reinforcing material mass in a matrix of metal by surrounding said bound reinforcing material with said metal in a molten state and applying pressure thereto, thereby forming a solid billet;
- (c) heating said billet to a degree sufficient to melt at least a portion of said matrix such that the percentage of matrix metal in the molten phase is at least 40 percent;
- (d) deforming said matrix billet by plastic processing under applied pressure to said predetermined shape;
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- (e) allowing said deformed billet to cool.
Dependencies are inferred from the claim text.