Forming of preconsolidated metal matrix composites

Details Forming of preconsolidated metal matrix composites Forming of preconsolidated metal matrix composites

B - Operations, Transporting

23

K

13/22

B23K 1/08 (2006.01) B21D 5/01 (2006.01)

Patent

CA 1092756

Abstract of the Invention A method of hot forming bends or deflections in preconsolidated metal matrix composite panels comprised of unidirectional filaments of boron, borsic, alumina, or graphite in aluminum or titanium base metals without limitation of orientation of the filaments relative to axes of the formed bends or deflections. The method consists of locating the composite workpiece between open male and female members of a forming die; bringing the workpiece and at least the die faces to a temperature of from approxi- mately 910°F. to approximately 935°F.; and closing the die members at a rate of from 5 to 12 mils per minute after both male and female die members are in contact with the workpiece and until the die members are completely closed. By practice of this invention, metal matrix composite can be formed with bends or deflections well beyond the heretofore limitations, and without concern or regard to the relative orientation of filaments in adjacent layers or plies.

312731

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