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Selections of working conditions for creep feed grinding. Part(I)–thermal partition ratios

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Abstract

A thermal model focused on the heat transfer to the fluid, workpiece and grain is developed for creep feed grinding. In this model, the conduction effect in the moving direction of the workpiece is considered which is found to be very significant especially for creep feed grinding. Moreover, the thermal partition ratios to the workpiece, fluid and grain are well defined and discussed. The results reveal that the cooling effect of the fluid is more crucial especially at larger grinding depth and smaller workpiece speed. Furthermore, the promotion of the wheel speed is helpful to reduce the fraction of heat entering the workpiece. Also, the workpiece thermal partition ratio is greatly influenced by the workpiece speed. Its value is even less than 5% as the workpiece speed is smaller than 4 mm/s. Comparing the thermal partition of wet grinding to that of dry grinding, the abrupt increase of heat entering the wheel and workpiece due to the occurrence of boiling in the fluid is verified.

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Correspondence to S.-B. Wang.

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Wang, SB., Kou, HS. Selections of working conditions for creep feed grinding. Part(I)–thermal partition ratios. Int J Adv Manuf Technol 23, 700–706 (2004). https://doi.org/10.1007/s00170-003-1643-9

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  • DOI: https://doi.org/10.1007/s00170-003-1643-9

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