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Stud welding is a technique similar to flash welding where a fastener or specially formed nut is welded onto another metal part, typically a base metal or substrate. The fastener can take different forms, but typically fall under threaded, unthreaded, or tapped.
In November 2021, the company stated that in 2010, it subcontracted the stud-welding company J. J. Jiménez, S. A. de C. V., and that Carso supervised the work through a verification system that assessed the welding of the studs, their alignment, and their final positions. [168]
2010: In July, the company announced the acquisition of CRC-Evans Pipeline International. [20] CRC-Evans provides total project support for pipeline construction contractors with automatic welding and other pipeline construction specific equipment and personnel. 2011: On September 9, the acquisition of Niscayah was complete.
Friction stud welding is a solid phase welding technique involving a stud or appurtenance being rotated at high speed while being forced against a substrate, generating heat by friction. The metal surfaces reach a temperature at which they flow plastically under pressure, surface impurities are expelled and a forged weld is formed.
ISO 14555 is an ISO standard for arc stud welding of metallic materials.It was incorporated as a European Norm as EN (ISO) 14555 and is referenced by Eurocode 4 in the evaluations of the design shear resistance of a headed stud which is automatically welded according to this standard.
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