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Selection of cylindrical grinding wheel

2019.12.05More SuperHard Products Co., Ltd71

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1. Principle of Reasonable Selection of Grinding Wheel

The choice of grinding wheel not only affects the machining accuracy and surface quality of the workpiece, but also affects the loss, service life, production efficiency and production cost of the grinding wheel. To achieve the purpose of reasonable selection of grinding wheels, the following basic principles should be observed:

(1) The abrasive particles should have good grinding performance.

(2) The grinding wheel should have appropriate "self-sharpness" during grinding.

(3) The grinding wheel should not be blunt, and has a long service life.

(4) A small grinding force is generated during grinding.

(5) Less grinding heat is generated during grinding.

(6) Achieving high machining accuracy (size accuracy, shape accuracy, position accuracy).

(7) A small surface roughness value can be achieved.

(8) Burns and cracks do not occur on the surface of the workpiece.

2.Selection of main characteristics of cylindrical grinding wheel

Cylindrical grinding wheels are generally flat grinding wheels of medium structure, and the size of the grinding wheel is selected according to the specifications of the machine tool. The selection of the main characteristics of the cylindrical grinding wheel includes the choice of abrasive grain, hardness and particle size.

(1) Selection of abrasive material. The choice of abrasive material mainly corresponds to the material and heat treatment method of the workpiece to be processed. Among various artificial abrasives, brown corundum and white corundum are the most commonly used.

(2) Selection of hardness. In addition to the general principles of hardness selection, the impact on the "self-sharpness" of the grinding wheel and the equal height of the microblade should be considered.

(3) Selection of particle size. The thickness of the abrasive grain of the wheel directly affects the roughness of the workpiece surface and the grinding performance of the wheel. A finer grain size should be selected for fine grinding; the opposite is true for coarse grinding. When grinding workpieces that are easily deformed, the grain size should also be selected coarser.


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