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Welding helmet

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Welding helmets are typically worn when arc welding.

Welding helmets are headgear used when performing certain types of welding to protect the eyes from ultraviolet light and the face and neck from sparks and heat. Most commonly used with arc welding processes such as shielded metal arc welding and gas metal arc welding, welding helmets are necessary to prevent arc eye, a painful condition where the cornea is inflamed. Welding helmets can also prevent retina burns, which can lead to a loss of vision.

Welding helmets include a small window, called a lens shade, through which the welder looks at the weld. The window can be made of darkly tinted glass, or it can be made of a transparent material that darkens automatically when the welding arc is struck. Either type, however, is susceptible to damages such as cracks that can compromise the protection from ultraviolet rays.

[edit] References

  • Jeffus, Larry (1999). Welding: Principles and Applications. Albany: Thomson Delmar. ISBN 0-8273-8240-5 .


Image:Blacksmith-hammer-anvil-50x50.png Metalworking
Welding
  Arc welding: Shielded metal (MMA) | Gas metal (MIG) | Flux-cored | Submerged | Gas tungsten (TIG) | Plasma  
  Other processes: Oxyfuel | Resistance | Spot | Forge | Ultrasonic | Electron beam | Laser beam  
  Equipment: Power supply | Electrode | Filler metal | Shielding gas | Robot | Helmet  
  Related: Heat-affected zone | Weldability | Residual stress | Arc eye | Underwater welding  
  See also: Brazing | Soldering | Metalworking | Fabrication | Casting | Machining | Metallurgy | Jewelry  
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