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A New Class of Petri Nets for Modeling, Planning and Scheduling of Flexible, Manufacturing Systems
(1994)
This work addresses the modeling, verification, planning and scheduling problems of non-cycle discrete systems with emphasis on Flexible Manufacturing Systems. We introduce a special type of Petri nets, the Conflict-Free ...
An Algebraic Approach to Feature Interactions
(1990)
Planning the manufacture of machined parts requires a great deal of geometric reasoning. One of the key steps in this task is the derivation of machinable features from a solid model of the part. Regardless of the approach ...
Analysis of Surface Quality in Machining of Metals and Advanced Ceramics
(1992)
Of all the processes used to shape metals, it is machining in which the conditions of operation are most varied. Good dimensional accuracy and surface quality from machining processes should be maintained such that the ...
Automated Generation of Group Technology Codes from a PDES Product Information Model
(1992)
The design and implementation of an automated system that generates group technology (GT) codes for microwave modules (MWM) is presented. An established GT coding scheme (MICLASS) was employed to capture the mechanical ...
Investigation of the Thrust and Torque Generated during Drilling Processes
(1992)
This thesis presents a study of the thrust and torque generated during drilling processes, with emphasis on applications to perform on-line monitoring of drilling processes. Two mathematical models are developed for ...
Generation of Feature-Based Models
(1994)
Often there can be a number of ways to perform machining operations on a stock to produce a part, and only some of them are cost- and quality-effective. To determine the best machining sequence, it is necessary that each ...
Complexity of Production Management in a Petri Net Environment
(1994)
The objective of this paper is to show that Petri nets facilitate a comprehensive approach to production management and reduce the complexity of the problems involved at the expense of some constraints imposed on the ...
Fractal Geometry Applied to On-line Monitoring of Surface Finish
(1994)
Surface finish of machined parts determines the functionality of the product and also the machining requirements for making the parts. On-line monitoring of surface finish has been an active area of machining research. ...
Integrating DFM with CAD through Design Critiquing
(1994)
In research on concurrent engineering and engineering design, the increasing use of design for manufacturability(DFM) is expanding the scope of traditional design activities in order to identify and eliminate manufacturing ...
Manufacturing Feature Instances: Which Ones to Recognize?
(1994)
Manufacturing features and feature-based representations have become an integral part of research on manufacturing systems, largely due to their ability to model correspondences between design information and manufacturing ...