A RESEARCH ON THE EFFECT OF CUTTING PARAMETERS ON CUTTING FORCE IN FLAT GRINDING USING SEGMENTED GRINDING WHEEL

This article represents the result of a research on the impact of cutting parameters including the number of segments, cutting depth and feed rate on cutting force P when grind SKD11 harden steel using bevel segment grinding wheel using Taguchi method and analysis of variance (ANOVA). The result release the information of the relationship between the number of segments, cutting depth and feed rate and its interactions with cutting force. Local optimal value of cutting force can also be determined with minimal cutting force and low surface roughness when machining the SKD11 harden steel using bevel segment grinding wheel.

A Note on Two Cooling Methods in Surface Grinding

This paper reviews two cooling methods for surface grinding. These include i) replacing the toxic coolant by a mixture of cold air and vegetable oil mist, and ii) minimising the use of coolant using a segmented grinding wheel system. The discussion concludes that the cold air-oil mist provides an environmentally conscious mean for surface grinding. However, due to the limit of its cooling capacity, it is more applicable for fine grinding. Using the segmented wheel system can minimise coolant consumption and can improve grindability.

Optimization of Segmented Grinding Wheel Matrix Based on Super High-Speed Grinding

It is different from the traditional integrated super high-speed grinding wheel, the centrifugal force has greater impact on segmented grinding wheel in super high-speed rotation. In this paper, in order to ensure the safety of super high-speed grinding wheel, models for the connection between inner micro-unit’s displacement and stress of wheel matrix were established to optimize high-speed grinding wheel section form, reduce the centrifugal stress and control the radial displacement of grinding wheel. Consider the structural and mechanical characteristics of wheel matrix, strength check of the theoretical formula were also established. Taking into account the factors of aerodynamic and wheel connector effects, at last the design of segmented super high-speed grinding matrix was optimized with finite element method.