1987 年 53 巻 12 号 p. 1938-1944
This paper deals with a reliability analysis for determining an abrasive belt life by the size of wear land formed on the cutting edges. The experiment was carried out under the following conditions: the grinding speed is 480, 960 and 1440 m/min, and the contact pressure is 17, 35 and 50 kPa, respectively. The distribution of the land was measured at the desired grinding time up to 3600 seconds using a new developed instrument. The experiment above was repeated by changing grain size, stiffness and grade of the belt. It was found that the distribution of wear land is fitted to the Logarithmic normal model. The reliability function and the hazard rate of abrasive belt life for quality of surface finish are also derived.