In this paper, an inverse matching method with a foil/workpiece thermocouple is used to determine the global heat flux distribution and energy partition in the workpiece when grinding under oil lubrication. Low-pass filtering and sampling frequency of the temperature measurement in the inverse matching method are of particular importance, given fast variations of the heat flux at the wheel-workpiece interface. In the inverse method, low-pass filtering and sampling have a negligible influence on the average heat flux but not on the maximum heat flux. The mean heat flux in the region of positive heat flux and the partition ratio are determined under no-burn and burn grinding conditions. The new heat flux distribution estimated by a scalene triangle in the grinding zone and an exponential function in the convective cooling zone is in very good agreement with the test temperature profiles.
The International Journal of Advanced Manufacturing Technology – Springer Journals
Published: Apr 12, 2017
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