Abstract
The finite volume model is developed for multi-pass grinding by considering the grinding wheel and work contact zone as a rectangular shaped moving heat source with uniform heat distribution at a velocity equal to the feed rate. Though some literature dealt the thermal modelling of single pass grinding, in practical application multi-pass grinding is done in most of the industries to enhance the finish of work material. Modelling the temperature profile in multi-pass grinding is complex due to the heat from previous passes is carried out to the next pass. This heat accumulation from previous passes increase the peak flash temperature. Hence there is an urge to develop a thermal model which calculates the depth of heat affected zone for multi-pass grinding. The experimentally obtained grinding power is used in calculating the heat flux which replicates the condition of abrasive grains, work-wheel interaction and process behavior. For experimental validation, thermocouple is placed at a depth of 1.5mm below the grinding surface and temperature values are obtained as the material is ground till the wheel touches the thermocouple. The temperature distribution for multiple grinding passes on the work material at different depths and time, Peak temperature and the heat flux distribution.
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Madopothula, U., Lakshmanan, V., Nimmagadda, R.B. et al. Prediction of temperature distribution in the workpiece during multi-pass grinding by finite volume method. Int. J. Precis. Eng. Manuf. 18, 1485–1493 (2017). https://doi.org/10.1007/s12541-017-0176-3
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DOI: https://doi.org/10.1007/s12541-017-0176-3