โ Scribed by Tien-Chien Chang; Richard A. Wysk
No coin nor oath required. For personal study only.
Two approaches to computer aided process planning are defined--variant and generative. The variant approach retrieves existing plans for a similar part while the generative approach synthesizes plans from built-in knowledge. The generative approach to process planning is normally considered more complex and the more automated of the two approaches. This paper discusses a generative process planning system called Totally Integrated Process Planning System (TIPPS). TIPPS uses a computer aided design (CAD) model as direct input, eliminating part coding or description from the planning process. Currently, TIPPS is capable of planning prismatic parts with one access direction. Relevant issues encountered in constructing a generative process planning system as well as the TIPPS design philosophy are discussed. Process planning using TIPPS is illustrated. This paper also discusses future research directions in automated process planning.
๐ SIMILAR VOLUMES
The package offers six kinds of wireframe primitives: cylinder; cube; cone; patch; sweep; sector; and two operators: copy; mirror. The user constructs machine parts interactively on the graphics terminal by keyboard commands, defines pivots and the interrelationships of relevant parts, joining them