Considerations For Surface Finishing In CNC Machining

DALIAN, China - April 15, 2024 - PRLog -- What Is Surface Finish?

Surface finish refers to the texture and smoothness of the external surface of the machined part. It is a key parameter that not only affects the appearance of the part, but also affects the mechanical and performance of the part.

By controlling surface finish, manufacturers can enhance corrosion resistance, reduce friction, improve sealing ability, and ensure that parts meet the specifications required for their intended applications.

Surface Finish VS Surface Finishing

Surface finish refers to the quality and characteristics of a material's surface, such as texture, roughness, and appearance.

On the other hand, surface finishing refers to modifying the surface of a material to achieve the desired surface finish. Surface finishing can involve various techniques, such as polishing, sanding, sandblasting, coating, or painting, to improve the surface quality, functionality, or aesthetics of materials.

In short, surface finish refers to the quality, overall texture, and characteristics of the surface. In contrast, surface finishing refers to the process of modifying the surface to achieve the desired smoothness.

What Is The Purpose Of Surface Treatment?

1. Function:

The surface finish can directly affect the performance of the product. For example, if the surface of a bearing or shaft is too rough, it may lead to excessive wear and premature failure. On the other hand, if the surface is too smooth, it can lead to insufficient friction and reduce the product's ability to function properly. Achieving the correct surface finish is crucial for ensuring that the product operates as expected and also helps to extend the service life of related tools.

2. Aesthetics:

The surface finish of a product can also affect its appearance, which is crucial for industries such as automobiles or consumer goods. High quality surface finish can make products look more attractive and enhance their perceived value.

3. Durability:

A fully polished surface also helps to protect the product from environmental factors such as corrosion, oxidation, or chemical erosion. For example, for metal parts, polished metal surfaces are more resistant to rust than rough, unpolished surfaces.

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