Abstract
838 The effectiveness of production processes depends largely on the selected operating conditions. There fore, choosing the best cutting conditions offers scope for improving the overall profitability of manufactur ing production, without additional labor or material outlays. Improving the profitability of a manufacturing enterprise must begin with consideration of the machining operations and the selection of the best operating conditions, which ultimately determine the productivity and production costs. Therefore, there is a clear need to develop com puter software for optimization of the cutting condi tions at the design stage and corresponding maximiza tion of manufacturing efficiency, without additional labor or material outlays Accordingly, the REZNET system has been devel oped for the identification of optimal cutting condi tions in the design of a technological process on the basis of experimental data and multifactorial mathe matical models. A block diagram of the REZMET program is shown in the figure. This system is intended to produce recommenda tions that consist of independent sections for the basic types of machining (drilling, thread cutting by taps, end and face milling) for 10ГНБ low temperature steel blanks. In accordance with the block diagram, the system operates as follows. (1) Selection of the type of machining (drilling, thread cutting by taps, end and face milling). (2) Specification of the initial machining parame ters: dimensions of the machined surface (hole diam eter and depth; thread size and length; milling width and depth; supply); the machining conditions (tool material; type and state of blank; lubricant and coolant fluid); and the required tool life. (3) Determination of correction coefficients on the basis of the selected machining parameters. (4) Compilation of tables of optimal cutting condi tions to ensure the required tool life, with recommen dations regarding the machining conditions. (5) Selection of the tool required for optimal machining.
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