Production method for metal matrix composite material

A method of producing a metal matrix composite material, comprising the steps of:

• (a) mixing a metal powder and a ceramic powder to prepare a mixed powder;
• (b) providing a metal casing having a lower casing member and an upper closing member, the upper closing member is adapted to seal the metal casing closed;
• (c) placing the mixed powder into the lower casing member;
• (d) sealing the metal casing filled with the mixed powder by placing the upper closing member on the lower casing member so as to prepare a pre-rolling assembly;
• (e) preheating the pre-rolling assembly in such a manner so as to maintain the mixed powder in a powder state;
• and
• (f) rolling the pre-rolling assembly following said step of preheating to obtain the metal matrix composite material, where the metal matrix composite material includes a pair of metal plates having the mixed powder therebetween,
• wherein the upper closing member includes an open bottom and is adapted to be fitted onto an outer peripheral surface of the lower casing member from above in a surrounding manner so as to cover the lower casing member.