Beschreibung
Grinding is an energy-intensive manufacturing process, which converts a large part of energy into heat, possibly causing critical damage to the tool or workpiece. Therefore, energy-consuming cooling of the process is required. Currently efforts are being made to completely eliminate the use of metalworking fluid during grinding. Therefore, this paper investigates the influence of process parameters on the resulting surface and subsurface properties while dry grinding. It was shown that with suitable process control, constant compressive residual stresses can be induced in the subsurface, whereby the level of residual stresses is particularly influenced by the cutting speed as a result of the power input. A significant influence on the surface roughness was not observed. On average, the roughness values R10z were 3.2 µm and Ra 0.45 µm. In addition, the influence of an XHV-adequate atmosphere on the grinding process and the grinding result was investigated, as recent research results show positive effects on the friction behavior. In this case, constant compressive residual stresses were also applied in the subsurface. The resulting surface integrity was on average R10z = 4.67 µm and Ra = 0.79 µm and therefore higher than when grinding in air. There was also welding of chips under an XHV-adequate atmosphere.
