Scientific Journal

Applied Aspects of Information Technology

INTERMITTENT GRINDING TEMPERATURE MODELING FOR GRINDING SYSTEM STATE MONITORING
Abstract:
A dry and wet intermittent grinding temperature mathematical model for the thermal macro- or micro-cycle was developed and studied. The heating stage corresponds to the wheel cutting segment passage time through the every contact zone point. The cooling stage corresponds to the passage time of the grinding wheel groove (or pore) through the point mentioned. The dry intermittent grinding temperature field is formed by temperature field superposition during the indicated both heating and cooling cycle stages under the action of heat flux on each point of the surface being ground. While during wet intermittent grinding with grinding fluid through the grooves (or pores) of the intermittent grinding wheel, the temperature field formed at the heating stage is the initial condition for determining the temperature field at the forced cooling stage. Based on the obtained model of the intermittent grinding temperature field the geometrical parameters of the discontinuous (slotted, segmented, high porous) grinding wheel are found and determined for the grinding with intermittent grinding wheel as follows: the number of cutting sections on the wheel and the duty factor of the period of heat flux pulses. The wet intermittent grinding temperature field is also formed by summing (stitching) the temperature fields. However, the heat exchange of the surface being ground with the cooling medium, which periodically acts on this surface during the cooling stage, is taken into account in each macro- or micro-cycle of heat flux in intermittent grinding. The presented article is the result of current work carried out as part of the scientific school of Professor A.V. Yakimov who was the founder of intermittent grinding technology and automation of grinding operations.
Authors:
Keywords
DOI
10.15276/aait.02.2020.4
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Received. 15.05.2020 
Received after revision 06.06. 2020 
Accepted 12.06. 2020
Published:
Last download:
29 May 2021

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