Data from Figure 8.35, Manufacturing Processes for� Engineering Materials� 2nd Ed, Kalpakjian p 514.
	Notice the bottom few processes- Lapping and superfinishing are traditional abrasive machining processes.� Electropolishing is a non traditional process that� comes close but is generally NOT as good a finish as the abrasives.
	Also notice the very small numbers with which we are dealing.� Remember a human hair is about 40 microns.� In some cases we are machining to the hundredth of a micron!