Do NOT grind aluminum on a grinding wheel in the metal finishing area.
Aluminum damages the grinding wheel.
To repair the wheel, it has to be ground down to remove all the aluminum residue, which makes for a small wheel
In addition, Aluminum heats up the wheel significantly more than steel does and the wheel can explode.
If Bill squared catches you grinding aluminum on a wheel…….it will be even worse!
A quick test for aluminum: if the metal is NOT magnetic, don't grind it on the wheel.