Finishing on IndustryNet

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A wide range of industrial processes used to change the surface of an item, in order to gain a certain property needed for the production, is called Finishing.This process can be used for improving the appearance, improving the adhesion features of a certain surface, improving the resistance to corrosion, tarnish, chemicals, and wearing.It is also used when the hardness of an object has to be improved, as well as when the electrical conductivity has to be modified, and when burrs and other surface flaws have to be removed.In rare situations, some of the finishing techniques have to be used in order to regain the original dimensions of an item, or to repair it or save it. The term mill finish, is used when talking about a surface that is unfinished.

The processes included in the surface finishing can be defined by how the item that the finishing processes are applied on, will be affected:

- Finishing that includes reshaping of the item by removing the layers of the item.

- Finishing that include altering of the item by adding layers on the item.

Metal finishes:

- Grinding

This type of finishing is applied before the manufacturing process. For example, removing excess weld material, and grinding gates off of castings.

- An Architectural finish

This finish is defined with its fine polishing grit lines, that offer an appearance with uniform and directional lines.

- Satin finish

This type of finishing is usually used for the medical and food industry items, and it is performed only on stainless steel.This process improves the physical appearance of the metal, and it likewise improves the sanitary characteristics of the surface.Every surface defect, like pits in the metal, is removed, preventing the bacteria to grow in those pits.

- Fine Satin finish

This finish is produced with a very fine non woven abrasive pad or a belt, and the results are soft lines that are not that reflecting as the lines done by the architectural finish.

- Number 7 Finish

This is a finishing type that leaves very dull polishing lines. The usually polished materials, when it comes to this type of finishing,are iron and carbon steel, and it is usually done before they are sent to chrome plating. This finishing type is used when the polishing costs need to be lower, and when the item has to have the shine, but it doesn’t have to be perfect. –

- Mirror Finish

With this type of finishing, every single defect on the surface of the item will be taken care of. The surface of the item will be sisal buffed and color buffed after that, in order to gain that shiny mirror look.

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