Deformation simulation of ground materials by coated abrasives (wear test)

Abstract

Purpose

This study seeks to clarify the behavior of ground materials and the grinding mechanism corresponding to the wear of abrasives, in the grinding process by coated abrasives.

Design/methodology/approach

Cemented carbide ball indenters for abrasive grains were used. Cemented carbide ball indenters have a definite shape. Grinding process is carried out using a wear‐testing machine with a reciprocating motion. This is an abrasive wear test. The deformation of the ground material is observed by the measurement of the worn groove and optical microscopic photograph of the worn ground surfaces.

Findings

Grinding process regularly proceeds when indenter diameter is small, that is, abrasive has a good cutting quality. However, when abrasives are gradually worn and the cutting quality becomes worse, a groove formed by grinding process is again filled up by the re‐adhesion of the generated worn debris. So, the grinding process by coated abrasives is impossible.

Research limitations/implications

To clarify the effects of indenter shape and its material on the abrasive wear of the workpiece or grinding process by coated abrasives, the additional experiments are now planned using other indenters having different shape or material in the laboratory.

Practical implications

In this research, interesting phenomena in grinding process by coated abrasives are found. This result is useful for the improvement of coated abrasives.

Originality/value

It is clarified that the grinding process by coated abrasives (that is, the behavior of ground material) can be simulated by this abrasive wear experiment.

Citation

Endo, H. and Marui, E. (2007), "Deformation simulation of ground materials by coated abrasives (wear test)", Industrial Lubrication and Tribology, Vol. 59 No. 4, pp. 172-177. https://doi.org/10.1108/00368790710753563