摘要
The article is devoted to the rational consumption of energy resources during the metal-cutting tools processing blanks of machine component parts in machine-building production. A scientific and methodological approach to the establishment of energy-efficient processing conditions is proposed, being based on the optimization of fabrication procedures according to new energy efficiency criterion. A study of advantages and disadvantages of known methods of fabrication procedures optimization according to the criterion of the lowest specific energy intensity has been conducted. A new integral indicator of energy efficiency of cutting operation is deefined as a ratio of constructional material specific energy intensity to the specific energy consumption in the cutting area. The methods of determining the energy efficiency figure with respect to the properties of the processed material, the behaviors of its deformation and fracture, type of formed chippings and technological purpose of processing are offered. The optimization of machining fabrication procedures with the new criterion in place permits the 18-22%reduction of energy costs in the cutting area in comparison to the applied processing conditions.