The surface grinding process is simulated by developing a special purpose computer package, where the grinding wheel surface is presented statistically by a Rayleigh distribution, and by using the Monte Carlo techniques. The effect of the grinding wheel profile and the kinematic input parameters on the internal parameters of the process and the workpiece surface roughness have been investigated. These are strongly related to the input parameters (νs,νw,a). The investigation shows that the active cutting edges represent only a small percentage of the total cutting edges (2% - 12%).
Corrosion fatigue of three steels namely: AISI 1018, AISI 4340 and 17-7 PH stainless steel are investigated in various environments. Testing mediums chosen are natural seawater, polluted sea water from an industrial site, drinking tap water produced by desalination process, 4% sodium chloride tap water solution and a laboratory air environment. Results obtained for the three steels are consistent in pointing out that pollutants in seawater do not contribute to an acceleration of corrosion fatigue. The aggressiveness of drinking water is attributed to its chemical instability, low alkalinity and bicarbonate content.
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