Speedup and the automation of the machinist advance now. It is important that I perform monitoring processing using sensor .However I am not usable to a machine tool with the conventional sensor. It is a purpose in our study to make a sensor using effective power. To that end, there is a need to know the effective power when the load change is intense. In this study, we have found that the effective power takes a constant value. Further, using numerical model, it available a reproduction of effective power.

A filterless cleaning system is proposed to eliminate the floating solid body from water-soluble cutting fluid without using the filter. The floating solid will generate an unexpected scratch on the finishing surface and is hardly removed from the cutting fluid by using an usual filtration system. The difference of fluidities between the floating solid body and cutting fluid itself would be utilized to remove the floating solid body from cutting fluid. In this study, a separating fluid passage embedded with a template mold was designed. The separating fluid passage was useful for capturing the floating solid body if the separation conditions were suitable.

In this study, the tensile strength of a bicrystal sample cut from a polycrystalline copper thin film was investigated by applying a micro tensile test system. As the previous researches have showed that the crystallinity of a grain boundary was evaluated quantitatively by using IQ (Image Quality) value obtained from EBSD (Electron Back-Scatter Diffraction) analysis, and plastic deformations started to occur in one grain in the sample when the IQ value was higher than 3500. In this study, the plastic deformation of one grain was observed in detail after the sample was pulled off by using SEM (Scanning electron microscope). Slip bands were observed clearly on the fracture surface.