Study On Automatic Calculation Of Process Dimension Chain In CAPP System

As the indispensable modular of a integral CAPP system and one of the necessaiy content in process card, the calculation of process dimension chain has become one of the choke point of the integration of CAD/CAPP/CAM system. It is discouraging to find there is no CAPP system which has been developed has solved this problem. This problem has become one of factors of hindering the perfect integration of CAD/CAPP/CAM system. So it is urgent to search the method to this problem. After years of the significant efforts pursued by author, great achievement has been obtained to date. A creative algorithm based on the theory of graphics was introduced in this paper in the course of author researching and developing CAPP system for rotational parts through analyzing numbers of this kind of question. In order to achieve our purpose of finding an intellectualized algorithm, this article takes the following procedures, seeking the intrinsic characteristic of single process dimension, establishing the mathematical model, abstracting the expression way based on the theory of graphics, instituting some regulation during the construction of algorithm, and finally procuring the algorithm. The competence of this algorithm has been verified in the CAPP system for rotational parts developed by author. The realization of this algorithm not only pushes forward theoretically the development of CAD/CAPP/CAM integration system, but also owns greatly practical value.