Design and Development of Apparatus for Evaluating Galling Resistance Test

摘要

In the present study, a custom made galling test setup has been developed and tested for use. The preliminary result obtained with mild steel specimens is presented. The present test configuration consists of two coaxially aligned hollow cylindrical specimen loaded along the longitudinal axis. The specimen holder is provided with an internal taper of 3° and specimen with an external taper of 3°, to ensure firm grip between the holder and the specimens. The test configuration adheres to American Society for Testing and Materials (ASTM) G196 standards, in which the resulting contacting surface is in the shape of annulus and there is uniform distribution of pressure. It was found that the results obtained through this setup are satisfactory and reproducible. The purpose of the present work is to design, develop and qualify a fixture for conducting galling tests.