FRICTION & LUBRICATION OF MACHINE TOOL SLIDEWAYS

A series of investigations is being carried out by the Production Engineering Research Association (PERA) which are aimed at providing design data for the slideways of machine tools. The first part of the work which is summarised here was carried out with the general object of determining the effect of type of surface (i.e. hand scraped, periphery ground and cup ground), lubricant viscosity and load on the lubrication conditions (i.e. boundary, mixed or fluid film) that occur between flat surfaces under substantially parallel sliding conditions. Of special interest were the effects of these factors on kinetic and static friction, stick‐slip and the onset of full fluid film lubrication.