What are the factors that affect the surface roughness of high precision grinding machine processing

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What are the factors that affect the surface roughness of high precision grinding machine processing

Release time：

2023-01-18

1. Grinding wheel

One of the factors affecting the surface roughness of high-precision grinding machines is that the grinding wheel mainly includes the grain size, hardness and dressing of the grinding wheel. The fineness of the grain size of the grinding wheel is directly related to the number of abrasive grains per unit area of the grinding wheel. At the same time, the finer the scratches on the grinding surface, the glossier and finer the surface. However, the fineness of the particle size should also be appropriate, and it should not be too fine, otherwise it will cause the grinding wheel to be clogged, and it will also cause ripples and burns.

2. Workpiece material

The material of the workpiece will also affect the surface roughness processed by the high-precision grinding machine, and the specific factors include the hardness, plasticity, and thermal conductivity of the material. The impact of these factors on surface roughness is direct. For example, soft materials such as aluminum-copper alloys will cause clogging of the grinding wheel, making grinding difficult, while heat-resistant alloys with high plasticity and poor thermal conductivity will cause the grinding surface to become rougher. .

3. Processing conditions

The surface roughness processed by high-precision grinding machines is also related to processing conditions. These conditions include the amount of grinding, cooling conditions, precision and vibration resistance of the process system, etc. Directly related to the amount of grinding, it includes both the speed of the grinding wheel and the speed of the workpiece, and is also affected by the depth of grinding and the amount of longitudinal feed. The increase in the speed of the grinding wheel may cause the grinding speed to exceed the propagation speed of the plastic deformation of the surface metal, and the deformation time of the material is tight. Promote the reduction of the roughness of the grinding surface.

HONGQI PRECISION