OBRABOTKAMETALLOV Vol. 23 No. 3 2021 MATERIAL SCIENCE EQUIPMENT. INSTRUMENTS 6 2 4 The unbalance class (1, 2, 3, 4) is indicated by the vertex X4. The accuracy class (AA, A, B) is indicated by the vertex X5. The maximum allowed processing speed is indicated by the vertex X6. The manufacturer is indicated by the vertex X7. Additional parameters (notes, additions) are represented by the vertex X8. The graph structure proposed for the description of grinding wheel design options allows for the decomposition of any design into its components for providing a comprehensive representation of the wheel. As previously stated, the precise definition of the vertices of the graph allows for the construction of a wheel to be represented as a matrix B, which corresponds to the graph-based model. 11 12 1 21 22 2 1 2 Â j j i i ij b b b b b b b b b = , where ij 1, 0, ij ij n if if ι ∈ ι ι ∉ ι In this instance, the matrix B is employed to illustrate the interrelationship between the design process of the grinding wheel and the selection of optimal parameters for specific tasks. The conversion of the graphic model into a matrix form will result in the creation of a single database of grinding wheel designs, which, in turn, will facilitate the systematization of grinding wheels available at enterprises. In addition, this model can be expanded to accommodate the incorporation of novel components in the structural design. Results and Discussion Using the methodology described above, two designs of modular grinding wheels with different sizes, methods of fastening the abrasive part, and other design features were simulated. The first modular grinding wheel design is represented by a 6A2 diamond surface grinding wheel shown in Figure 2. This wheel has a solid ring-shaped abrasive section that is fastened to the body by phenolic rubber adhesive. The abrasive part is made of Bakelite B2-01 bond and synthetic diamond. The body is made Fig. 2. Surface diamond grinding wheel type 6A2
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