Surface finishing in manufacturing applies to any final procedure or series of procedures that result in a change in a desired property of a face of the manufactured item. Physical or chemical properties may be altered. The metalworking and polymer industries often use surface finishing to improve the characteristics and value of their products.
Benefits of Surface finishing
Finishing processes may be employed to: improve appearance, adhesion or wettability, solderability, corrosion resistance, tarnish resistance, chemical resistance, wear resistance, hardness, modify electrical conductivity, remove burrs and other surface flaws, and control the surface friction. In limited cases, some of these techniques can be used to restore original dimensions to salvage or repair an item. Surface finishing processes can be categorized by how they affect the workpiece:
1. Removing or reshaping finishing
2. Adding or altering finishing