Study on the helical scan grinding method

2nd Report: Estimation of formation of finished surface in helical scan grinding method by means of 3D-CAD model

Abstract

Estimation of mechanism of surface finish improvement in helical scan grinding, a method in which good surface finish is obtained while retaining high grinding efficiency, was performed based on a virtual grinding trace using a 3D-CAD model. In three grit models, (a) a single grit on a wheel, (b) plural grits arrangement on a helical line along a wheel circumference, and (c) multiple grit arrangement in a triangular pattern, virtual grinding traces and their unevenness or surface roughness were investigated. The virtual grinding trace in helical scan grinding was made by interference of grit trajectories, and the results of the analysis were very similar to experimental results.