Influence of metal working fluid supply conditions on the thermal process limit for grinding of hardened steel

In previous work, a uniform thermal process limit in a P c ''-∆t-diagram was identified despite the use of different grinding wheels and fluid supply conditions. Here, the influence of fluid supply parameters on this process limit is investigated in more detail by means of grinding tests under varying supply parameters. No effect on the thermal process limit was observed. However, the supply parameters influence the specific grinding power P c '' and thus whether or not thermal effects occur. The thermal process limit can be used to identify not only thermal effects, but also favourable fluid supply parameters and a minimum flow rate.