In a polishing process the wear is greater at the edge when the tool extends beyond the border of the workpiece. To explain this effect, we propose a new model in which the pressure is higher at the edge. This model is applied to the case of a circular tool that polishes a circular workpiece. Our model correctly predicts that a greater amount of material is removed from the edge of the workpiece.
© 2004 Optical Society of America
Original Manuscript: May 9, 2003
Revised Manuscript: October 13, 2003
Published: February 20, 2004
Alberto Cordero-Dávila, Jorge González-García, María Pedrayes-López, Luis Alberto Aguilar-Chiu, Jorge Cuautle-Cortés, and Carlos Robledo-Sánchez, "Edge effects with the Preston equation for a circular tool and workpiece," Appl. Opt. 43, 1250-1254 (2004)