This thesis is intended to provide the management of small to medium sized job shop companies with a written plan to implement a formal computerized manufacturing planning and control system. The research stemmed from a case study performed at a typical job shop where growth of production activities was complicating...
The fundamental objective of a design engineer in performing tolerance technology is to transform functional requirements into tolerances on individual parts based on existing data and algorithms for design tolerance analysis and synthesis. The transformation of functional requirements into tolerances must also consider the existing process capabilities and manufacturing costs...
Flexible Manufacturing Systems (FMSs) have evolved rapidly over the last decade. One important factor that influences the performance of FMS is scheduling. Scheduling in an FMS differs from that in a conventional job-shop because each operation of a job may be performed by any one of several machines. Most studies...
Good tool management and job operating strategies will
result in reduction in tool inventory and associated costs.
Very little empirical research has been conducted on a
Flexible Manufacturing System (FMS) as a whole in relation
to its performances with tool movement approach,
specifically in a dynamic job shop in a...
The efficiency of a marine cargo terminal depends
primarily upon a smooth and orderly flow of material
during the container loading process. It has been
observed that the transtainer operation is the bottleneck
in the loading process due to frequent rehandles of
containers and the speed of the transtainer. Past...
In production processes, there are two types of
variations that affect production quality - - variations
produced by chance causes and variations produced by
assignable causes. One of the main instruments in quality
control used to control quality by distinguishing between
variations produced by chance causes and a real process...
The purpose of this research is to develop an approach to minimize makespan for assigning boards to production lines. Because of sequence-dependent setup issue, board assignment and component allocation have to be performed concurrently. An integrated methodology is proposed to obtain a solution of the two problems. The methodology consists...
This research was motivated by the use of multi-track feeders in the printed
circuit board (PCB) assembly. In a low volume, high mix production environment,
setup time is usually considered more important than processing time. Implementation
of multi-track feeders not only increases the capacity of the surface mount
machines but...
Automated Storage and Retrieval (AS/R) Systems
have had a considerable impact on manufacturing and
distribution processes. The configuration of AS/R systems
vary considerably, depending on the particular application.
The effect of different retrieval scheduling rules
is analyzed and compared for three different unit-load
AS/R systems operating under dual-command cycle. The...
A modem Flexible Manufacturing Cell (FMC) usually consists of several Distributed Control Systems (DCS). Modeling and evaluating a manufacturing integrated system and then translating the models to operational programs are important steps in implementing a FMC. Monitoring and enhancing a FMC's manufacturing process quality is another critical issue. An embedded...