Title :
Automatic construction of process plans from solid model representations
Author :
Marefat, Michael ; Kashyap, R.L.
Author_Institution :
Dept. of Electr. & Comput. Eng., Arizona Univ., Tucson, AZ, USA
Abstract :
Methods and an implemented system for automatic generation of process plans from the CAD boundary representation of a part are presented. Two problems are addressed: one is the machine understanding of the shape of a part from its low-level boundary representation, and the other is developing a plan based on this semantic information. The architecture of the system at the highest level consists of a solid modeler, a shape description system, an automatic process planner, and the interfaces between them. Cooperative reasoning and combining geometric evidences are used to automatically extract the shape primitives of a part and determine the relations between these primitives from the boundary representation CAD data, thus producing the higher-level semantic information. A case-based planner uses the information produced by the shape description system to construct a conceptual plan for machining the part. Examples illustrate the reasoning performed by the system and show its advantages
Keywords :
CAD; case-based reasoning; planning (artificial intelligence); production engineering computing; solid modelling; CAD boundary representation; automatic process planner; case-based planner; cooperative reasoning; process plan generation; production engineering computing; shape description system; solid model representations; CADCAM; Computer aided manufacturing; Design automation; Machine vision; Manufacturing automation; Robot vision systems; Robotic assembly; Robotics and automation; Shape; Solid modeling;
Journal_Title :
Systems, Man and Cybernetics, IEEE Transactions on