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Design of Manufacturing Cells with Multiple, Functionally Identical Machines
(1990)
This thesis addresses the entire layout design problem of a manufacturing facility of discrete parts which includes unique as well as functionally identical machines. The problem has been addressed in two distinct stages. ...
REU Report: Process Integration with Wafer Yield: An Exercise in Computer-Based Modules
(1999)
This report explains the development of the new Wafer Yield simulation.It shows the user the various effects of numerous factors in manufacturingon total yield, the algorithms behind it, an explanation of the OLE systemthat ...
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 ...
Evaluating Sheet Metal Nesting Decisions
(1998)
This paper describes models that estimate the cost and time of sheet metal punching when nesting (batching) orders. These models help decision-makers plan production and evaluate the impact of changing the nesting policy. ...
Sequencing Wafer Handler Moves to Improve the Performance of Sequential Cluster Tools
(2000)
Cluster tools are highly integrated machines that can perform a sequence of semiconductor manufacturing processes. The sequence of wafer handler moves affects the total time needed to process a set of wafers. Reducing this ...
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 ...
A Stochastic Modeling for the Characterization of Random Tool Motion during Machining
(1992)
This paper presents the development of a new stochastic approach to characterize random tool motion during machining. The complexity of cutting mechanism is represented by a random excitation system related to physical ...
Event Graphs for Modeling and Evaluating Modern Production Systems
(1990)
Very few Mathematical Tools are available to study the dynamics of discrete manufacturing systems. Petri Nets, and in particular a special type of Petri Nets called Timed Event Graphs, seem to be of special interest for ...
Fixture-Based Design Similarity Measures for Variant Fixture Planning
(1999)
One of the important activities in process planning is the design of fixtures to position, locate and secure the workpiece during operations such as machining, assembly and inspection. The proposed approach for variant ...
Design, Verification and Implementation of Rule Based Information Systems for Integrated Manufacturing (INSIM)
(1992)
Full control and management of information flow in an automated factory has not yet been achieved, mainly because of the data inconsistencies and lack of established functional relationships among different manufacturing ...