Method for producing a metal composite

A method for producing a metal composite which is molded by heating and pressurizing a preform including a sheet substrate containing at least one thermosetting resin selected from the group consisting of epoxy resin, phenol resin, benzoxazine resin and unsaturated polyester resin, and a metal material disposed in contact with the sheet substrate or laminated therewith to form the metal composite comprising the metal material and a cured resin layer formed by curing the thermosetting resin provided along the metal material, wherein the method comprises:

• a step 1 for placing the preform in a mold and heating the metal material so as to raise its surface temperature in excess of 180° C. while semi-curing the thermosetting resin,
• a step 2 for applying a pressure to the preform being heated in the step 1 to form the metal composite, and
• a step 3 for cooling down the metal composite molded in the step 2 under pressure so as to lower the surface temperature of the metal material to 180° C. or less.

A method for producing a metal composite including a metal material and a cured resin layer provided along the metal material, wherein the method comprises:

• a step 1-1 for heating a sheet substrate containing at least one thermosetting resin selected from the group consisting of epoxy resin, phenol resin, benzoxazine resin and unsaturated polyester resin, to semi-cure the thermosetting resin,
• a step 1-2 for preheating the metal material to its surface temperature of more than 180° C. but not more than 400° C., and
• a step 2 for placing in contact with each other or laminating the sheet substrate, which has undergone the step 1-1, and the metal material, which has been preheated in the step 1-2, inside a mold having a surface temperature of 180° C. or less and applying a pressure to mold them into the metal composite.