Influence of metalworking fluid additives on the thermal conditions in grinding

Extreme pressure (EP)-additives are applied in nearly all metalworking fluids to enable better performance and improved lubrication at high thermomechanical loads. Especially in grinding, lubrication of the contact zone between grinding wheel and workpiece is of high relevance. This paper presents the results of a systematic study to reveal the potential of different additives in surface grinding to reduce the contact zone temperature and to shift the grinding burn limit. It is shown that the performed defined variation of the additive combinations considerably influenced effects regarding the thermal load in the contact zone and the performance of the grinding process.