Glass Deep Processing Products Nesting Optimization And Integrated Materials Management System

In recent years, the developments of relative industry have not only brought along the development of glass deep process industry, but also made the competition more drastic. How to survive and develop in the competition has become the problem that glass deep process industry have to face, especially for SME. But the problems existing in cutting stock and material management have restricted their further development. According to the status of Zhongshen Glass Industry that lies in Dongguan, the cutting stock and material management integrated system of glass deep process is studied in this paper.In this paper, the background, meaning and object of the subject are firstly introduced. The development and present status of the relative technique of cutting stock and material management are summarized. And then the source and the main research contents are introduced.Then the cutting stock problem of glass deep process product is studied. The mathematical model for general cutting stock problem is analyzed base on the analyst of the features and technical requirement of glass deep process. Because the cutting stock problem is a kind of NP complete problem, there is no effective algorithm to solve it by present. In view of the practical requirement of production and combined with the experience of manual layout, a kind of dimensions-decreasing heuristic algorithm which can reduce a mass of unnecessary calculation of traditional algorithm is adopted to get the approximate optimal solution of the cutting stock problem.As to the material management, the basic theory of material requirement planning is mainly introduced. The features of bill of material, master production schedule and lot sizing of glass deep process industry are analyzed. Then the calculation method of MRP of glass deep process industry is analyzed, and the information integration of cutting stock and MRP isIIrealized.Based on the works above, using Visual BasicB.0 as the developing tool and the SQL Server 2000 as the Database platform, a prototype that based on the Client/Server architecture is set up, and the integration of cutting stock and material management is realized abecedarian. Finally this paper is summarized and the development trends are pointed out.