Method of producing alloy strip laminate and apparatus for producing alloy strip laminate

A method of producing an alloy strip laminate, comprising:

• applying an external force directly to an alloy strip of a first laminate member, the first laminate member comprising an adhesive layer and the alloy strip, to form a crack in the alloy strip and prepare a first laminate comprising the adhesive layer and the alloy strip with the crack formed therein;
• applying an external force directly to an alloy strip of a second laminate member, the second laminate member comprising an adhesive layer and the alloy strip, to form a crack in the alloy strip and prepare at least one second laminate comprising the adhesive layer and the alloy strip with the crack formed therein;
• and
• laminating the at least one second laminate on the first laminate to prepare an alloy strip laminate in which the adhesive layers, and the alloy strips with the crack formed therein are alternately layered;
• wherein forming the crack comprises pressing a convex member against a plurality of positions on a surface of the alloy strip to form a plurality of cracks in the alloy strip, and forming network cracks mutually connecting the plurality of cracks formed by pressing the convex member against the alloy strip due to a force in a longitudinal direction only, and
• wherein the forming network cracks comprises applying a second external force by bending or winding of the alloy strip after one-time forming a plurality of cracks in the alloy strip.