Abstract:In order to get the technique for small kerf width and optimal contour flatness in diamond wire saw cutting, after the wire-cutting electrical discharge machine (EDM) tool transformed into a diamond wire saw machine, the experiment of cutting insulating ceramics with fixed abrasive diamond wire saw in a constant feed way is carried out. In the experiment, the influences of wire speed and balance weight to both kerf width and contour flatness were exploded. In order to measure the kerf width and observe the kerf contour flatness, optical microscope was used. The results indicate that the kerf width is changed unsignificantly under a higher wire speed compared to a remarkably decrease under a heavier weight. The kerf contour is generated of a serrated edge with a higher wire speed, and similarly, the edge curvature as well as chipping are appeared with a heavier weight.