Find in Library

In the 21st century, as it is important to produce products with care for protecting the earth, a producer must carefully give attention on the energy conservation issue, save resources and reduce waste which pollutes environment. On the other hand, in case of a machine tool, much quantity of oil and electrical energy was used for smooth drive, high accuracy and long tool life. This is large problem for protecting the earth. Therefore, in this research, the cutting fluid with lower coefficient of friction focused on the controlling of cutting heat was developed and evaluated. The lubrication technology using polymer and small grains mixed in the strong alkaline water was firstly investigated for lower coefficient of friction. Then optimum condition for the proposed cutting fluid was investigated and decided in the several experiments. Evaluations for the cutting property through a CNC lathe machine performance and the environmental impact for the cutting fluid with lower coefficient of friction by using simple LCA was lastly analyzed. It is concluded from the results that; (1) The lubricant of the proposed cutting fluid which mixed the strong alkaline water with polymer and small graphite grains has coefficient of friction 0.13, (2) Accuracy of the machine tool was very good and the tool life was very long in spite of wet cutting, (3) The cutting fluid was excellently eco-friendly.