S133014 Fundamental Studies on Reduction of Coolant in Cylindrical Plunge Grinding

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  • S133014 円筒研削におけるクーラント低減効果に関する基礎研究

Abstract

This study deals with the reduction of coolant in cylindrical plunge grinding. As a first step, the scraper effect is examined by both FEM analysis and experiments, and the optimum scraper-wheel gap is investigated. The observation by high speed camera and the numerical analysis of turbulent flows reveal the the air-belt around the wheel surface is remarkably broken when the scraper-gap is below 1.5 mm. Judging from the occurrence of grinding burn, the coolant supply can be reduced to approximately 0.6 L/min by the installation air-scraper. The surface roughness of the workpiece suggests that there is an optimum scraper-wheel gap. However, there is room for further examination on that problem.

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