LYCOS RETRIEVER 
Welding: Welding Technology
built 621 days ago
Welding, without the proper precautions appropriate for the process, can be a dangerous and unhealthy practice. However, with the use of new technology and proper protection, the risks of injury and death associated with welding can be greatly reduced. Because many common welding procedures involve an open electric arc or flame, the risk of burns is significant. To prevent them, welders wear personal protective equipment in the form of heavy leather gloves and protective long sleeve jackets to avoid exposure to extreme heat and flames. Additionally, the brightness of the weld area leads to a condition called arc eye in which ultraviolet light causes the inflammation of the cornea and can burn the retinas of the eyes. Goggles and welding helmets with dark face plates are worn to prevent this exposure, and in recent years, new helmet models have been produced that feature a face plate that self-darkens upon exposure to high amounts of UV light.
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Welding Technology offers a certified, state-of-the-art welding facility complemented by certified welding instructors. Students train and learn to meet the current certification requirements of manufacturing and construction industries and exploring many career alternatives related to the welding industry. The program's technical training complies with American Welding Society (AWS) standards, increases the students' understanding of welding, meets employers' expectations, and increases the students' ability to compete in the employment marketplace. Training includes oxyacetylene cutting and welding, brazing, soldering, blueprint/layout standards and methods, welding procedures specifications, testing methods, quality control, metallurgy, and safe work practices. Welder certifications are conducted according to AWS and WABO (Washington Association of Building Officials) standards. Process certifications are available and include plate and pipe welding using shielded metal arc, gas metal arc, and gas tungsten arc welding.
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The program in Welding Technology offers instruction in the principles and practices of welding processes. Successful completion of the the program provides sufficient training for entry level into the field of production-type welding. Students have access to the latest instructional and practical experiences in a spacious, modern shop facility.
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During the 1920s, major advances were made in welding technology, including the introduction of automatic welding in 1920, in which electrode wire was fed continuously. Shielding gas became a subject receiving much attention, as scientists attempted to protect welds from the effects of oxygen and nitrogen in the atmosphere. Porosity and brittleness were the primary problems, and the solutions that developed included the use of hydrogen, argon, and helium as welding atmospheres.[7] During the following decade, further advances allowed for the welding of reactive metals like aluminum and magnesium. This, in conjunction with developments in automatic welding, alternating current, and fluxes fed a major expansion of arc welding during the 1930s and then during World War II.[8]
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Eclipse Aviation awarded the contract to MTS Systems in April 2001 for a unique friction stir welding (FSW) system -- the world's first production application of this technology for the fabrication of aircraft structures. This award culminates a joint development activity during which MTS and Eclipse have researched and proven the efficiency and reliability of friction stir welding for the Eclipse 500 jet.
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As Starion's influence grows beyond the U.S., leading researchers from Greece to Taiwan are reporting the benefits of tissue welding technology versus other modalities. Most recently, Lance Maron, MBBCh, FCS (SA), from Netcare Parklane Hospital in Johannesburg, South Africa, presented his findings at the 43rd South African National ENT & SAHNOS Congress.
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Welding Technology