ENGINEERING A NEXT GENERATION WATER-BASED GRINDING FLUID

摘要

These early observations and initial studies have revealed that the conventional metalworking fluid chemistry, that attempts to maximize lubricity and cooling, is not what constitutes a superior grinding fluid. Though cooling and lubricity are important factors, the one that has become paramount for grinding, based on this program of fluid testing, is detergency. This is the fluid's ability to keep the grinding wheel clean and free from loaded material. Tests that exclude and enhance the oxidation of the ground surface have shown this to be important [3]. Other work has shown that the use of copper, in the presence of ferrous material, prevents the re-welding and build-up of material onto the surface of the grinding wheel [4].rnThough surface tension was not significant, the speed of wetting (dynamic surface tension) might show a different result. The pH of a fluid may also influence its detergency. Cleaning fluids were once used [5]. They ground with very low power and yielded a high G Ratio, however the caustic nature of the fluid was such that eye irritation was a major problem for the operator.rnThe program will go forward to the extent of improving the cutting functions within the bounds of acceptance for the non-cutting functions [6].