The study underscores the importance of a good maintenance program to reduce oil leakage and the necessity of properly functioning equipment to remove tramp oil. The data indicate that the amount of leak oil present has a greater impact on mist levels than does the general class of metalworking fluid type being used. Adopting the best fluid maintenance systems from simple oil skimmers to elaborate filtration and recycling systems is essential to optimize machining processes by removing metal chips, grinding fines, and any other contaminating particulates from the MWFs. Similarly, machine tool builders have responded to user demands and fluid supplier recommendations to design machines with full enclosures, fluid handling systems, and machine work envelopes with a negative pressure that prevent fluid mist from escaping even through open machine doors. Here are the elements of MWFs that are monitored and why.
Concentration is the percentage of metalworking concentrate in the mix.
It can be expressed as a ratio, the amount of MWF concentrate to the total volume of mix. It is a good indicator of the condition of your fluid mix. Most MWFs operate in a pH range of 8.8 to 9.2. If the mix pH is too low, rancidity control, ferrous corrosion control, and mix stability are affected. If pH is too high, mildness and nonferrous corrosion control are affected.