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Manupedia

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What is Manupedia and how do I use it? article icon

Science, Maths & Technology 

What is Manupedia and how do I use it?

Find out more about Manupedia and how you can best make use of it. 

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Copyrighted  image Icon Copyright: The Open University
Electroplating article icon

Science, Maths & Technology 

Electroplating

A process used to apply a coating, via electrolysis, from an electrically conductive base material to the object to be coated. Often used to silver plate cutlery and other decorative objects.

Article
Copyrighted  image Icon Copyright: The Open University
Shot blasting article icon

Science, Maths & Technology 

Shot blasting

Shot blasting entails the forceful direction of abrasive particles against the surfaces of metal parts to remove contaminants or condition the surface for subsequent finishing.

Article
Copyrighted  image Icon Copyright: The Open University
Shot peening article icon

Science, Maths & Technology 

Shot peening

Shot peening is a method of cold working in which compressive stresses are induced in the exposed surface layers of metallic objects by controlled impingement of shot.

Article
Copyrighted  image Icon Copyright: The Open University
Nitrotec process (oxygen enhanced nitriding) article icon

Science, Maths & Technology 

Nitrotec process (oxygen enhanced nitriding)

The Nitrotec process consists of nitriding (nitrocarburising) components, before immediately subjecting them to rapid oxidation, then quenching, finishing with the application of a protective sealant. Oxidation gives protection against corrosion, whilst the quenching and sealing give enhanced surface wear resistance and increased yield strength of materials.

Article
Copyrighted  image Icon Copyright: The Open University
Ion implantation article icon

Science, Maths & Technology 

Ion implantation

Within a vacuum chamber, surfaces to be hardened are bombarded with a high energy stream of ions that penetrate the surface. This is not a diffusion process. Once impregnated into the surface, the ions (usually carbon or nitrogen) lose their energy and stop moving. The compressive stresses generated in the surface layers improve mechanical and fatigue properties, as well as corrosion and wear resistance.

Article
Copyrighted  image Icon Copyright: The Open University
Induction/flame hardening article icon

Science, Maths & Technology 

Induction/flame hardening

Induction hardening involves using induced electrical currents to very rapidly generate heat via hysteresis, usually in a workpiece made from medium to high carbon steel. Flame hardening uses oxy-fuel burners to heat the workpiece via conduction. Both procedures use quenching after heating, often followed by tempering and/or stress relieving.

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