THREE-DIMENSIONAL PROCESSING METHOD FOR LAMINATED FILM AND APPARATUS THEREFOR

Provided is a three-dimensional processing method in which a molding processing unit performs cold compression-molding on a laminated film in a thickness direction of the laminated film so as to project a compression-molded portion to an outer surface side, the laminated film having at least an inner surface film having a large elongation on an innermost surface and an outer surface film having asmall elongation on an outer surface side , the three-dimensional processing method being characterized in that the molding processing unit is made of a material which can achieve an elastic deformation area wider than the widest elastic deformation area in a plane direction of a film constituting the laminated film. According to the three-dimensional processing method of the present invention, aprojection portion having a wide working width can be formed in the compression-molded portion. 本发明提供一种立体加工方法，在该立体加工方法中，通过利用成形加工部对至少具有最内表面的伸长率较大的内表面膜和外表面侧的伸长率较小的外表面膜的层叠膜沿该层叠膜的厚度方向以冷加工的方式进行压缩成形，使压缩成形部向外表面侧突出，该立体加工方法的特征在于，所述成形加工