Analysis of Rounding Effect in Generalized Centerless Grinding (2nd Report)

Proposal of Phase Coincidence Rounding Effect Criterion Diagram in Generalized Centerless Grinding

Abstract

A centerless grinding is characterized by supporting a workpiece with the periphery to be ground under a preliminary selected geometrical arrangement and in viewpoint of rounding action there exist geometrical/statical stability and also a dynamic stability in the grinding system. Therefore, for realizing generalized work set-up conditions for stability it is necessary to derive an analytical method to be able to review both of the geometrical/statical stability and also the dynamic stability simultaneously. In the present paper, by introducing a vector phase coincidence method instead of the conventional vector locus coincidence method a phase coincidence rounding effect criterion diagram has been newly proposed for the above requirement. Application of the diagram enables to give a guideline to the generalized work set-up conditions considering an effect of selection of a top angle of work support blade, which was neglected in the conventional approximated analysis. A several experimental results prove applicability of the guideline.