Abstract
In high speed surface grinding, the grinding fluid is excluded from the front of the grinding wheel by bubbles. These bubbles are made as a result of the air of boundary layer on the grinding wheel surface being mixed in the grinding fluid. To make clear this phenomena between the fluid and the bubbles, the pressure distributions of the ground surface are measured. Composition of WA wheel used in the experiment is as follows:bonding materials are Vitrified and Resinoid ; mesh is #120 and #1000, and the fluid is water. Conclusions are as follows: 1) In high permeability of the wheel, the generated pressure at the front of the grinding point causes the grinding fluid to flow into the porous wheel, therefore the pressure is not high. 2) In high permeability and high surface roughness of the wheel, the grinding fluid is found insufficient even in a low rotational speed.
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