Method of manufacturing corrugated preform using braiding process

A method of manufacturing a corrugated preform using a braiding process, comprising:

• braiding a composite material corresponding to an outer diameter of a cylindrical cylinder shape;
• braiding the composite material by connecting a plurality of separate composite materials to one side of the braided composite material;
• and
• braiding the composite material to one side of the separate composite material corresponding to the outer diameter of the cylindrical cylinder shape,
• wherein the braiding the composite material corresponding to an outer diameter of a cylindrical cylinder shape and the braiding the composite material to one side of the separate composite material corresponding to the outer diameter of the cylindrical cylinder shape are applied to a process of manufacturing a concave portion of the corrugated preform,
• wherein the concave portion of the corrugated preform is braided in the process while rotating an equipment plate in a predetermined direction.