Polishing

Polishing is the process of creating a smooth and shiny surface by rubbing it or using a chemical action, leaving a surface with a significant specular reflection (still limited by the index of refraction of the material according to the Fresnel equations.)[1] In some materials (such as metals, glasses, black or transparent stones), polishing is also able to reduce diffuse reflection to minimal values. When an unpolished surface is magnified thousands of times, it usually looks like mountains and valleys. By repeated abrasion, those "mountains" are worn down until they are flat or just small "hills." The process of polishing with abrasives starts with coarse ones and graduates to fine ones.

Mechanical properties

The strength of polished products can be higher than their rougher counterparts owing to the removal of stress concentrations present in the rough surface. They take the form of corners and other defects which magnify the local stress beyond the inherent strength of the material.[2]

Types

Metalworking

Other polishing processes include:

Woodworking

French polishing
Wood finishing

Other

Chemical-mechanical polishing, which is used in semiconductor fabrication
Fabrication and testing of optical components
Flame polishing, a type of polishing used on glass and thermoplastics
Ultra-fine, abrasive paste polishing, polishing for soft or fragile work surfaces
Vapor polishing, a method of polishing plastics to optical clarity

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gollark: > <Kit> cyber its fine, its probably for a good reason idkWrong, your alleged parents are literal apiary forms.

gollark: However, it is important to actually be able to explain things, according to our bees.

gollark: Of course you can. The xkcd didn't even need sticks.

gollark: Can't.

References

Floor Scrubber, archived from the original on 2016-08-31, retrieved 2008-01-04.
Zucuni, Camila Pauleski; Dapieve, Kiara Serafini; Rippe, Marília Pivetta; Pereira, Gabriel Kalil Rocha; Bottino, Marco Cícero; Valandro, Luiz Felipe (2019). "Influence of finishing/polishing on the fatigue strength, surface topography, and roughness of an yttrium-stabilized tetragonal zirconia polycrystals subjected to grinding". Journal of the Mechanical Behavior of Biomedical Materials. 93: 222–229. doi:10.1016/j.jmbbm.2019.02.013. PMID 30831358.

External links

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[1] Floor Scrubber, archived from the original on 2016-08-31, retrieved 2008-01-04.

[2] Zucuni, Camila Pauleski; Dapieve, Kiara Serafini; Rippe, Marília Pivetta; Pereira, Gabriel Kalil Rocha; Bottino, Marco Cícero; Valandro, Luiz Felipe (2019). "Influence of finishing/polishing on the fatigue strength, surface topography, and roughness of an yttrium-stabilized tetragonal zirconia polycrystals subjected to grinding". Journal of the Mechanical Behavior of Biomedical Materials. 93: 222–229. doi:10.1016/j.jmbbm.2019.02.013. PMID 30831358.