平面研削における砥粒切れ刃の熱挙動

概要

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Thermal action of active grains is analyzed theoretically by the one dimensional unsteady-state heat transfer theory. The cooling behavior of these grains during the non-cutting portion of a revolution is mainly treated. The calculated results indicate that the surface temperature of the cutting grain drops chiefly owing to conduction rather than convection heat transfer, in dry grinding. The temperature of active grains on a wheel surface at various cooling times after cutting was measured by means of an infrared radiation pyrometer, in which an optical fiber accepts the infrared flux radiated from the grain surface and transmits it to a photo-detector InAs cell. The mean temperature of grains in cutting is estimated to come at about 1250℃ in grinding of 0.55% plain carbon steel by A 36K wheel, applying the experimental results to the theoretical equation.
社団法人精密工学会の論文
1985-09-05