Abstract
Abstract:
This paper deals with an in-process measurement method for a grinding wheel wears by using compressed air, which can apply for both dry and wet grinding. A pressure sensor is set beside a grinding wheel with a small gap. When compressed air is flown into the gap, pressure is produced. It is related to the gap. This method is applied to straight surface grinding. Electromagnetic properties of work piece and grinding wheel do not affect measurement results. The pressure decreases when the gap increases. At that time the compressed air is supplied perpendicular to the circumference of the grinding wheel. Spectra of the pressure are measured with a measuring system by using compressed air. It has a pressure sensor and it is analyzed by the data acquisition system laboratory DasyLab7.0 of NATIONAL INSTRUMENTS and DASYTEC USA. Higher frequency components increase during the progress of grinding thanks to compressed air. Loading and dulling of the grinding wheel can be assessed by the wearing process. Understanding wheel wear will help us improve the accuracy, productivity as well as reduce the price of product.