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US 4,732,314 AGranted
Method of manufacturing a metal-based composite material
AssigneeDirector-General of Agency of Industrial Science and Technology
InventorAkira Sakamoto
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AssigneeDirector-General of Agency of Industrial Science and Technology
InventorAkira Sakamoto
Estimating the term…
The invention provides a method of manufacturing a metal-based composite material, in which the interfacial reaction between an inorganic fiber reinforcing material and a matrix metal such Al or Mg during press forming of the metal-based composite material is suppressed, and the resultant material has an excellent composite state. In the method of the invention, a preform laminate or sandwiched body consisting of the inorganic fiber reinforcing material and the matrix metal is packed in a sealing metal container. After the interior of the container is evacuated, the container is rapidly heated to a temperature higher than the solidus of the matrix metal. Immediately thereafter, while a vacuum pressure is kept unchanged, the container is pressed between a pair of platens kept at a temperature lower than the solidus of the metal, thereby obtaining a composite material of the reinforcing material and the metal.
A method of manufacturing a metal-based composite material, characterized in that a preform laminate consisting of a fibrous inorganic reinforcing material and a matrix metal which is aluminum, an aluminum alloy, magnesium or a magnesium alloy, or a sandwiched body of the fibrous inorganic reinforcing material and metal sheets of foil layers of said matrix metal is packed in a sealing metal container, the container is rapidly heated to a temperature higher than the solidus of the matrix metal while its interior is maintained in a vacuum, and immediately thereafter the container is compressed by a platen heated to and kept at a temperature lower than the solidus of the matrix metal, thereby preparing a composite material of the reinforcing material and the matrix metal, and separating the composite material from the container.
Dependencies are inferred from the claim text.