Flux Core Mig
Flux Core Mig
Welding helmet – PEM Fastener Manufacturer – Precision Fasteners by jekky
A welding helmet is typically worn when arc welding.
Welding helmets are headgear used when performing certain types of welding to protect the eyes, face and neck from flash burn, ultraviolet light, sparks and heat. Most commonly used with arc welding processes such as shielded metal arc welding, gas tungsten 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. Both conditions are caused by unprotected exposure to the highly-concentrated UV rays emitted by the welding arc (which can also damage uncovered skin, similar to a sunburn).
All welding helmets include a small window, called a lens shade, through which the welder looks at the weld. In older helmets, the window can be made of darkly tinted glass, or perhaps a pair of polarized lenses. In more modern helmet designs, transparent material that darkens automatically when exposed to the flare of a welding arc are more common. Either type, however, is susceptible to damages such as cracks that can compromise the protection from ultraviolet rays. In addition to the lens shade, the helmet has a shroud around the face to protect it from hot metal sparks generated by the arc. Some older models have a leather covering protecting the neck and shoulders as well.[citation needed]
References
Jeffus, Larry (1999). Welding: Principles and Applications. Albany: Thomson Delmar. ISBN 0-8273-8240-5.
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Metalworking
Welding
Arc welding
Atomic hydrogen Gas metal (MIG/MAG) Flux-cored Gas tungsten (TIG) Plasma Shielded metal (MMA) Submerged arc
Other processes
Electrogas Electron beam Electroslag Forge Friction Friction stir Friction stud Laser beam Laser-hybrid Oxyfuel Resistance Spot Ultrasonic
Equipment
Power supply Electrode Filler metal Shielding gas Robot Helmet
Related terms
Heat-affected zone Weldability Residual stress Arc eye
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Categories: Helmets | WeldingHidden categories: All articles with unsourced statements | Articles with unsourced statements from February 2007
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ATI Professional Welding Section 3A Flux-core MIG Welding