Outer plate unfolding method, outer plate manufacturing method, computer program for guiding these methods, and image recording medium for guiding these methods

摘要

An outer plate unfolding method and the like capable of reducing the amount of processing and improving the manufacturing efficiency of the outer plate are provided. According to the outer plate unfolding method of the present invention, first, the outer plate lattice system is configured, and the direction in which the curvature of the outer plate P is maximum and minimum at each lattice point of the outer plate lattice system is determined (s102). . In addition, among these directions, the first connection line L1 and the second connection line L2 extending in the direction in which the absolute value of curvature is large and the direction in which the curvature is small are determined (s104). While maintaining the length of the first connection line L1, it is developed as a straight line on the flat plate P ″. And, the accumulated value of the processing amount according to the expansion rate or contraction rate of the second connection line L2 is minimized. The flat plate P ″ is developed as a line orthogonal to the straight line.