Abstract
Minimum quantity lubrication (MQL) is a promising new fluid delivery technique in grinding. However, the thermal behaviour of the process under such cooling conditions remains unclear. This work reports on the results of a recent investigation of MQL in fine-cut plane surface grinding. The experimental study considered three conditions: conventional low pressure fluid delivery, dry grinding and MQL delivery. Common steels EN8, M2 and EN31 were ground with a general purpose alumina wheel. Conventional fluid used was a general purpose 5% by volume emulsion; MQL fluid was a general purpose machining oil. Grinding temperatures were measured using the single-pole thermocouple method. Grinding temperatures obtained from experiment are compared with those predicted from theory. Results obtained demonstrate that MQL can deliver a comparable thermal performance to conventional flood delivery under the conditions investigated. Grinding kinematics are discussed to explain the outcomes and to improve understanding of MQL grinding performance.
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The authors acknowledge Prof. W Brian Rowe for his valued contributions throughout this study.
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Morgan, M.N., Barczak, L. & Batako, A. Temperatures in fine grinding with minimum quantity lubrication (MQL). Int J Adv Manuf Technol 60, 951–958 (2012). https://doi.org/10.1007/s00170-011-3678-7
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DOI: https://doi.org/10.1007/s00170-011-3678-7