Cutting Force Modeling

Abstract

is increased if oxygen is present, suggesting that oxygen can enhance the adsorption ability of ester. This situation may possibly be very similar to the behavior of a lubricant in MQL machining because, even near the cutting point, the lubricant particles are surrounded by a large amount of air containing oxygen. Figure 3 illustrates schematically the difference between (a) the conventional flood supply and (b) the MQL supply, in this sense. In MQL cutting, the adsorption ability of the lubricant ester is supposed to be intensified by atmospheric oxygen, leading to the formation of a robust and tribologically effective lubricating film. The practical cutting performance in MQL machining of steels was in good accordance with the above adsorption behavior of the ester and atmospheric gases. On the contrary, the cutting performance for machining of aluminum improved with lower oxygen concentration in the gas, presumably because of the aluminum oxide (alumina) formation: alumina is extremely hard and its machining is difficult. Cross-References ▶ Cutting, Fundamentals References DeChiffre L (1981) Lubrication in cutting-critical review and experiments with restricted contact tool. ASLE Trans 24(3):340-344 Shaw MC (1984) Metal cutting principles, 2nd edn. Clarendon Press, Oxford Suda S, Yokota H, Inasaki I, Wakabayashi T (2002) A synthetic ester as an optimal cutting fluid for minimal quantity lubrication machining. Ann CIRP-Manuf Technol 51(1):95-98 Wakabayashi T, Inasaki I, Suda S (2006) Tribological action and optimal performance: research activities regarding MQL machining fluids.