Aug 19, 2016 · Is it possible to grind aluminum? This would be in a 5 axis grinding machine, with a 7100 rpm spindle. 1000 psi scrubbers, and 100 gallons max, 200 psi max coolant flow. Grinding with cbn on aerospace materials come second nature to me. But had a machine tool builder ask about grinding in their aluminum table +/.0001. and not to sure about this.