Aspects of selection, justification and implementation of CNC machine tools in manufacturing and toolroom environments

Abstract

The Thesis reviews the literature relevant to the selection, justification, and implementation of Computer Numerical Control (CNC) machine tools. A general framework is proposed which covers both technical and managerial aspects. The ten phases are detailed in such a way that they may be practically applied. The Thesis describes the use of the framework with reference to two contrasting cases within a single Company where a number of CNC machine tools were installed. The first case was a Production Machine Shop, the second a Service Toolroom. The two cases are compared to show that the framework can be used, even when the applications are markedly different. The usefulness of the literature reviewed is then discussed; it is shown that much is outdated and does not assist the potential user of CNC technology in justifying and purchasing the most suitable equipment.