What abrasive speeds are best for which materials?
In general abrasive speeds from 4000 to 8000 surface feet per minute are recommended for mild steels and aluminum. Abrasive speeds from 3000 to 6000 surface feet per minute work well with stainless steels and cast irons. Exotic materials such as titanium generally prefer speeds below 2000 SFPM. Plastics and other polymers usually prefer speeds below 2000 SFPM. Woods and similar fibrous materials are often best ground below 6000 SFPM. Grinding speeds are determined by the material to be ground, the finish desired, and the abrasive used.
