Abstract
It is known to finish difficult the aluminum alloy to high smoothness surface by grinding because the alloy adheres easy to cutting edge. The possibility of ultra-smoothness grinding of aluminum alloy with newly developed vertical ultra-smoothness grinding method, in the research, is investigated using grinding fluid including extreme pressure additives having the repressive effect of adhesion. By selecting the suitable grinding conditions, the surface roughness is found to attain below 50nm(Rz).