Abstract
Cutting fluids used in metal cutting are sources of pollution and health hazards. Therefore, eco-friendly machining such as dry cutting, minimum quantity lubrication (MQL), cold air cutting and etc. have been proposed. In those reports, however, the effective application techniques of eco-friendly machining such as kinds and quantity of lubricant, cutting tool, cutting conditions have been determined experimentally. The purpose of this study is to show the suitable application methods of eco-friendly machining. So, in this paper, transitional cutting temperature and cutting force that have the influence on tool wear were examined from points of intermittent cutting distance, cutting speed, feed rate and supply of cold air. The results obtained are as follows. Cutting temperature rose rapidly during 30 times cutting distance to feed rate in start of cutting. The peak of cutting temperature fell with the decrease of feed rate. In this experiment, the cutting temperature fell about 10-40 degrees C by supply of cold air.
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