划擦深度的不断加深，很明显划痕的宽度和隆起量都是增大的，但并不是呈线性

As the depth of scratching continues to deepen, it is clear that the width of the scratches and the amount of bulge increase, but they do not increase in a linear relationship. In the scratching process, the scratching depth corresponds to the normal force received by the material, that is, to avoid the formation of scratches, it can be solved by controlling the scratching depth or normal force. When the depth is 1.5nm, the normal force is about 200Nn. When the depth is 2.0nm and 2.5nm, the normal force is close. From the curve in the figure, it is a nonlinear growth. During the scratching process, the friction coefficient of the material is as shown in the figure. The increase in the scratch depth causes the friction coefficient to gradually increase. When the depth is 1.5nm, the friction coefficient is about 0.19; at 2.0nm, it is about 0.33 and the depth is At 2.5nm, it is about 0.4, and its growth is nonlinear. <br>Combining the characteristics of the three aspects of scratches, in order to reduce the formation of scratches, the scratch depth or normal force should be controlled so that they are as small as possible under the premise of satisfying the processing efficiency.

As the depth of the scratch deepens, it is clear that the width and amount of the scratch escloser are increased, but not linearly. In the process of scratching, the scratch depth corresponds to the force of the material, that is, to avoid the formation of scratches, you can solve by controlling the scratch depth or the force of the legal direction. At a depth of 1.5nm, the normal force is about 200Nn, and at a depth of 2.0nm and 2.5nm, the normal force is close, as can be seen by the graph in the graph, is nonlinear growth. In the process of scratching, the friction coefficient of the material is shown as shown, the depth of scratches increases the coefficient of friction is gradually increased, the coefficient of friction is about 0.19 at a depth of 1.5nm, at 2.0 nm, about 0.33, and at a depth of 2.5nm, about 0.4, and its growth is nonlinear.<br>Comprehensive scratch three characteristics, in order to reduce the formation of scratches, should control the depth of scratches or the force of the legal direction, so that it meets the processing efficiency of the premise, as small as possible.

With the deepening of the scratch depth, it is obvious that the scratch width and protrusion increase, but not linearly. In the process of scuffing, the scuffing depth corresponds to the normal force on the material, that is, to avoid the formation of scratches, it can be solved by controlling the scuffing depth or the normal force. When the depth is 1.5nm, the normal force is about 200nn. When the depth is 2.0nm and 2.5nm, the normal force is close. From the curve in the figure, it is nonlinear growth. In the process of scratching, the friction coefficient of the material is as shown in the figure. The increase of scratch depth causes the friction coefficient to increase gradually. When the depth is 1.5nm, the friction coefficient is about 0.19; when the depth is 2.0nm, the friction coefficient is about 0.33; when the depth is 2.5nm, the friction coefficient is about 0.4, and the growth is nonlinear.<br>In order to reduce the formation of scratch, the scratch depth or normal force should be controlled to make it as small as possible on the premise of satisfying the machining efficiency.<br>