Elastic Deflections in Grinding

Abstract

Besides affecting the wheel-workpiece interaction to a large extent, the local contact deflections play a major role in establishing the size accuracy of the ground surface. The increasing interest in this aspect of grinding in recent times has resulted in some hypotheses and models but no complete understanding has yet been achieved. This paper is a review of the work carried out by various investigators and presents a comprehensive picture of the current understanding of local elastic deflections. It extends from the first “grain mounted on springs” model of Hahn, to the most recent studies using holographic interferometry, high acceleration quick stop devices and the Monte Carlo simulation of grinding. The paper also includes a brief reference of some new experimental techniques and results obtained in an elastic deflection study using single grits on actual grinding wheels.