There are many different metals commercially available. Some are easier to machine than others. Many years ago, a system was developed to rate the relative ease or difficulty of machining various metals. These ratings are called “Machinability Ratings.”
Metal removal fluids (MRF) are used for both machining and grinding applications. As was discussed in the basic training, both applications are similar in that there is an interface between the cutting tool, the metal being cut (i.e. the workpiece) and the chip that is created.
Coatings are applied onto a metal surface to improve the appearance and provide corrosion resistance from elements that would compromise it. Without a protective coating, the metal surface would form rust and potentially reduce its service life. In the Tube & Pipe industry, coatings are designed for heavy duty applications requiring a high degree of protection since these objects are stored in an outdoor setting.
The term “water-soluble metalworking fluid” means that the fluid is mixed with water prior to use in the machine tool. However, unlike straight oils, water-soluble products must be monitored for appropriate concentration. What exactly is being monitored or measured?