Abstract
An experimental low speed cutting saw equipped with a torque transducer was constructed.The cutting torque on composites with various cutting loads was measured during cutting.The total amount of cutting work on the composites was calculated from the torque measured.The loss volume of the composites was also calculated from the weight loss before and after cutting, and from the density of the composites.From these findings, the cutting work on the composites per unit loss volume was estimated.For posterior composite resins tested, the cutting work was about 130〜150J/cm^3, at the cutting load of 350gf in this cutting saw.
