Abstract
This paper presents a new method for generating the optimal development of a sheet metal product. In this work, Dynamic Programming is adopted. Each of two sections of the entrance and the exit is expressed with some points. The objective function is made up from two functions, the first of which describes the total length of bending lines that links two sample points surrounding the entrance and the exit, respectively; the second of which describes the smoothness of changes in directions of normal vectors of the generated side surfaces. We can then get some optimal solutions more speedily, which are practical enough to be used in the industry.
