Investigation of centerless grinding (1st report): Grinding force measurement

This paper describes new equations for calculating grinding forces and the new measuring system in centerless infeed grinding. In the equations, there are some unknown parameters which must be measured experimentally. For getting the values, such as forces on blade and stopper, angular velocity and acceleration of workpiece, a 3-component dynamometer and non contact workpiece velocity sensor were mounted on the grinding machine. From this measuring system, normal and tangential grinding forces at grinding point were measured in centerless grinding of a ferrite workpiece with a diamond wheel. These values agreed well with the grinding forces from a conventional measurement in cylindrical grinding, and it was found that the measuring system for centerless grinding has satisfied performance.