On the prediction of surface burn and its thickness in grinding processes

Surface burn during grinding processes is a thermally induced damage creating unwanted changes and must be avoided. Previous studies correlated surface burn with a critical temperature as its threshold. In this study, metal oxidation at high temperatures is proposed as the mechanism responsible for burn, and a model is developed considering both temperature and exposure time to predict the occurrence of burn and its thickness. Grinding tests were carried out and the cross-sections of the samples were analyzed to validate the model. The model use was demonstrated satisfactorily for selection of burn free and high productivity grinding conditions. (c) 2021 CIRP. Published by Elsevier Ltd. All rights reserved.

Automated summary

The study suggests that metal oxidation at high temperatures is the mechanism responsible for surface burn during grinding processes. A model considering temperature and exposure time was developed to predict the occurrence of surface burn and its thickness, with validation through grinding tests. The model demonstrated satisfactory performance in selecting burn-free and high productivity grinding conditions.