Investigation of the effect of omitting of rail grinding on rail material and rolling noise after rail milling work

Abstract

This study investigated the possibility of omitting rail grinding after rail milling work. Under the condition without grinding or with grinding after the milling of rail surface, a material condition of the rail, a remaining rail surface roughness and a rolling noise were measured to confirm the effect of omitting rail grinding. The results suggest that the omission of rail grinding is unlikely to have a negative effect on the rail material. On the other hand, the rolling noise after the rail milling without rail grinding tended to increase due to the remaining rail surface roughness. Further investigations will be carried out to confirm how long it takes for the rail to return to its the pre-work condition.