关键词: 工艺设计, 制造过程, 建模, 面向对象方法

Abstract: Due to significance of process planning on manufacturing cost, quality, and efficiency, a modeling method for the manufacturing process based on process planning was proposed. Through simulation of process model, process design effects were predicted, analyzed, and optimized. After analyzing the characteristics of manufacturing process, the manufacturing process was defined as a component object by object-oriented method, and was further divided into three component objects: manufacturing activity, process control, and manufacturing resource. Furthermore, a class structure model and a dynamic process model of manufacturing process were constructed. Then, the class structure models of manufacturing activity, process control and manufacturing resource were set up, and the corresponding methods and attributes of each object were fully defined respectively. Based on the models, a Computer Aided Process Planning (CAPP) system was developed, by which the manufacturing process could be modeled rapidly and automatically, and some process parameters, such as time and cost could be calculated, the machining process and the material flow could be also simulated.

Key words: process planning, manufacturing process, modeling, object-oriented method