Influence of the cutting force upon machining process efficiency

Abstract

The present paper has as main objective to highlight the influence of the cutting force, which is directly connected to the energy consumption, upon machining process efficiency. In this respect, it is developed an experimental research performed by the means of a turning process, using different cutting parameters. An experimental frame composed from: a longitudinal lathe, carbide cutting tools, steel pieces and the device for measuring the cutting force, which is a dynamometer was designed to measure the cutting forces during the turning process. The data collected were analyzed by the means of a statistical software package, in order to study the influence of the cutting force upon the energy consumption. The results indicated the conditions for reducing the energy consumption, without affecting the product quality nor the process productivity. In order to reduce the energy consumption and the energy costs the cutting force must be reduced. A solution is to reduce the depth of cut and to increase the feed rate, without negatively affecting the cutting process productivity. Another important aspect to be considered in energy consumption reduction is to reduce the cutting speed and to proportionally increase the depth of cut and the feed rate, in order to maintain the cutting process productivity