Abstract
The impacts of different linear speed of grinding wheel, grinding depth and workpiece feed speed with or without grinding fluid on grinding force were studied by plane grinding machining of zirconia ceramics. The impacts of different machining environment and grinding parameter on normal and tangential grinding forceswere studied by testing the grinding force during grinding with a force measuring device. The studies showed that the normal and tangential grinding forces decrease with the increase of the linear speed of grinding wheel and increase with the improvement of grinding depth and workpiece feed speed. The grinding depth has the greatest impacts on the normal and tangential grinding forces in dry grinding environment; while in wet grinding environment, the grinding depth exerts the greatest impacts on the normal grinding force and the linear speed of grinding wheel imposes the greatest impacts on the tangential grinding force. In addition, it was found that the normal grinding force in dry grinding is minor than that in wet grinding, that the tangential grinding force in dry grinding is greater than that in wet grinding, and that the grinding force ratio in dry grinding is lower than that in wet grinding.
Highlights
Experimental ConditionsWith the development of the times, high-end manufacturing equipment has gradually become the focus of development; and engineering ceramics have been widely applied to the basic components of high-end machine tools by virtue of its excellent performance.Such ceramic materials have such advantages as high hardness, wear resistance, oxidation resistance, corrosion resistance and high temperature resistance [1]
This paper focused on the study of the impacts of different grinding parameters on the normal and tangential grinding forces in dry/wet grinding of zirconia ceramics
The removal mechanism of zirconia materials in grinding changes with the gradual increase of grinding depth. It can be seen from experimental study that if the grinding depth gradually increases and exceeds a certain critical value, the material removal method in grinding zirconia ceramics gradually shifts from plastic deformation to brittle shedding
Summary
With the development of the times, high-end manufacturing equipment has gradually become the focus of development; and engineering ceramics have been widely applied to the basic components of high-end machine tools by virtue of its excellent performance Such ceramic materials have such advantages as high hardness, wear resistance, oxidation resistance, corrosion resistance and high temperature resistance [1]. It is very necessary to study the grinding force [3] For this purpose, this paper focused on the study of the impacts of different grinding parameters on the normal and tangential grinding forces in dry/wet grinding of zirconia ceramics. The factors influencing the normal and tangential grinding forces of zirconia ceramics were studied through a large number of experiments. If the range of grinding depth, workpiece feed speed and the linear speed of grinding wheel decreases in order, the impacts on tangential and normal grinding force are gradually weakened
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