DEVELOPMENT OF TRUING DEVICE FOR SUPER-ABRASIVE WHEELS FOR FORM-GRINDING

Although Diamond and CBN grinding wheels are widely used, applications of these wheels to form-grinding are still limited because of the difficulties in truing operation. The object of this study is to develop a technology for truing super-abrasive grinding wheels for form-grinding. In this paper, a new technique by using a cup-type GC wheel is proposed. The technique, when combined with CNC equipment, functions as a truing device capable of forming a grinding wheel into any convex profile. The principles of the truing device is described in detail. Its specific characteristics, including truing efficiency and accuracy, are investigated through experimental truing of a CBN grinding wheel. Follow-up grinding tests demonstrates the excellent performance of the wheel.