Grinding Performance of a Grain-Arranged Diamond Wheel against Aluminum Alloys and Ti6Al4V

Abstract

A grain-arranged diamond wheel was developed and grinding performance of the wheel against aluminum alloys and titanium alloy, Ti6Al4V, has been investigated using various kinds of grinding fluid. Mirror finishing of aluminum alloys was successfully performed without grinding burn when emulsion-type grinding fluid with an extreme-pressure additive was used. When oil base lubricants or a fatty acid was supplied using a MQL supply unit, fine finishing could not be done. Mesh size of the grinding wheel had only a minor effect on surface roughness. When Ti6Al4V was ground by the developed wheel, an adhesion of work material on diamond grains occurred causing the finished surface to deteriorate.

3D laser investigation on micron-scale grain protrusion topography of truncated diamond grinding wheel for precision grinding performance

“…It may improve the surface roughness of hard and brittle materials using coarser #170-270 diamond grinding wheels [3]. The recent research showed that the mirror traverse grinding of aluminum alloys may be realized using a grain-aligned #60 diamond grinding wheel on which the aligned grain tips were truncated to be uniform using a #325 diamond dresser [4]. Moreover, a mirror finish grinding of SiC ceramics was also performed using a truncated #60 diamond grinding wheel [5].…”

“…Hence, a grain tip (GT) truncation has been introduced to truncate grain protrusion tips and make their protrusion heights uniform after dressing [3,4]. It may improve the surface roughness of hard and brittle materials using coarser #170-270 diamond grinding wheels [3].…”