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Edge effects with the Preston equation for a circular tool and workpiece
Alberto Cordero-Dávila1, Jorge González-García, María Pedrayes-López
1Facultad de Ciencias Físico-Matemáticas, Benemérita Universidad Autónoma de Puebla, Apartado Postal 1152, 72000 Puebla, Pue., México. acordero@fcfm.buap.mx
Applied Optics
|March 11, 2004
Summary
In polishing, tools extending beyond workpiece edges cause greater wear. A new model explains this by showing higher pressure at the edge, accurately predicting increased material removal from workpiece borders.
Area of Science:
- Materials Science
- Mechanical Engineering
- Manufacturing Processes
Background:
- In polishing, uneven wear occurs when the tool overhangs the workpiece edge.
- This phenomenon leads to increased material removal at the workpiece periphery.
Purpose of the Study:
- To develop a predictive model for understanding edge wear in polishing.
- To explain the increased wear at the edge of a workpiece during polishing.
Main Methods:
- A new theoretical model was developed to describe polishing pressure distribution.
- The model was applied to a specific case: a circular tool polishing a circular workpiece.
Main Results:
- The proposed model accurately predicts higher pressure at the edge of the workpiece.
- The model correctly forecasts that more material is removed from the workpiece edge.
Conclusions:
- The developed model provides a mechanistic explanation for enhanced edge wear in polishing.
- Understanding pressure distribution is key to controlling material removal and optimizing polishing processes.