I. Introduction

　　As a core tool in grinding, the selection of a grinding wheel directly affects processing quality, efficiency, and cost. Therefore, when selecting a grinding wheel, multiple factors must be considered comprehensively, including the characteristics of the workpiece being processed, the performance of the grinding wheel, and other important factors. This article will detail these factors to help readers make more reasonable and accurate grinding wheel selection decisions.

　　II. Workpiece Being Processed

　　Material and Hardness

　　Different workpiece materials have different requirements for grinding wheels, such as steel, non-ferrous metals, and non-metals.

　　The hardness of the material directly affects the wear rate and grinding efficiency of the grinding wheel. Therefore, it is necessary to select the appropriate grinding wheel formula and type based on the hardness and other characteristics of the material.

　　Processing Area and Shape

　　Consider the processing area of the workpiece, such as plane, outer circle, inner circle, and curved surface.

　　The workpiece shape determines the adaptability and grinding method of the grinding wheel. For conventional shapes such as inner holes, outer circles, and planes, sintered or electroplated grinding wheels can be selected. For workpieces with complex shapes, electroplated grinding wheels are usually preferred because they can better adapt to complex shapes.

　　Grinding Allowance

　　The size of the grinding allowance determines the degree of grinding wheel wear and grinding time.

　　Select the appropriate grinding wheel type and grit according to the grinding allowance. When the grinding allowance is large, a coarse-grained grinding wheel should be selected to improve grinding efficiency.

　　Processing Accuracy and Surface Finish Requirements

　　Workpieces with high processing accuracy requirements require high-precision grinding wheels.

　　Surface finish requirements affect the selection of grinding wheels. Coarse-grained grinding wheels are suitable for workpieces with large grinding allowances but may not meet high surface finish requirements. In this case, finer-grained grinding wheels need to be used in multiple grinding processes to achieve the required surface finish.

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