A tendency has existed over the years for Computer Aided Process Planning (CAPP) system methodologies to develop towards expert system applications. Knowledge-based expert system platforms include a knowledge acquisition module. This paper presents the binary Petri net as a unified framework for acquisition and representation of knowledge in the scope of machining operations planning. An illust...

Computer-aided process planning (CAPP) is an important interface between computer-aided design (CAD) and computer-aided manufacturing (CAM) in the computer integrated manufacturing (CIM) environment. A good process plan of a part is built up based on two elements: (1) optimized sequence of the operations of the part; and (2) optimized selection of the machine, cutting tool and tool access direc...

Several approaches and systems have been proposed in generative Computer Aided Process Planning field (CAPP), with different advantages and drawbacks. Most of these works are based on expert systems, production rules or special-purpose planning systems. In expert systems and production rules systems much knowledge representation is required, and special-purpose planning systems, on the other ha...

Process planning is the systematic determination of the sequence of the operation by which a product is to be manufactured economically and completely. Today both CAD and CAM are well developed as two islands of automation. CAPP is the link between CAD and CAM. Computer aided process planning play a key role in computer integrated manufacturing. In manual process planning, the process planner p...

Ž . A well designed computer-aided process planning CAPP system bridges the gap between CAD and CAM. A number of systems have recently been developed relying on a standalone expert system. However, because of over-complexity, many such systems cannot be effectively applied to industrial enterprises in practice. Moreover, the modern computer integrated Ž . manufacturing system CIM requires the C...

A forward and automatic method for in-process model generation is proposed and integrated with three-dimensional computer aided process planning (CAPP) system. The method based on feature cutter volume of manufacturing drives the in-process model to evolve from blank to part, which is coincident with the manufacturing process and ideology of process design. At the same time, technology of What-...

The focus of this publication is a review of the state of the art in tolerance analysis, synthesis and transfer for geometric and dimensional tolerances (GDT) in sheet metal forming and the integration solutions with computer-aided process planning systems. In this context, the general tolerance methods are first described. Then the mathematical models for sheet metal tolerance analysis and syn...

Process planning is a task comprising a broad range of activities to design and develop an appropriate manufacturing process for producing a part. Interpretation of the part design, selection of manufacturing processes, definition of operations, operation sequences, machining datums, geometrical dimensions and tolerances are some common activities associated with the task. Process planning is a...

Conceptual process planning is a key activity for designers to evaluate manufacturability and manufacturing cost and time in the early product development stage. Since major manufacturing cost is determined in early design, it is critical to be able to assess manufacturability and cost as early as possible in the design process. The integration between process planning and design is critical to...