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Weld quality assurance. Weld quality assurance is the use of technological methods and actions to test or assure the quality of welds, and secondarily to confirm the presence, location and coverage of welds. [original research?] In manufacturing, welds are used to join two or more metal surfaces. Because these connections may encounter loads ...
This program is open to all qualified test facilities that may be a part of an independent laboratory, manufacturing plant, educational institution, or other entity. American Welding Society ATFs are listed on the official AWS website and advertised in the American Welding Society's Welding Journal magazine.
A Welding Procedure Specification (WPS) is a formal document describing welding procedures. It is an internal document used by welding companies to instruct welders (or welding operators) on how to achieve quality production welds that meet all relevant code requirements. Each company typically develops their own WPS for each material alloy and ...
Weld tests for friction welding. Quality requirements of welded joints depend on the form of application, e.g. in the space or fly industry weld errors are not allowed. [1] Science try to gets good quality welds. There are many scientific articles describing the weld test, e.g. hardness, [2][3][4] tensile tests. [3]
Cold cracking—also known as delayed cracking, hydrogen-assisted cracking (HAC), or hydrogen-induced cracking (HIC)—is a type of defect that often develops after solidification of the weld when the temperature starts to drop from about 190 °C (375 °F); the phenomenon often arises at room temperature, and it can take up to 24 hours to appear even after complete cooling. [8]
Computed Tomography (CT), a subset of radiographic testing, is proving useful for the inspection of thermoplastic composite welds. CT involves the computerized building of a 3-D image using X-rays taken from numerous, incremental angles. It is particularly useful for the determination of fiber orientation in welds of glass reinforced composites.
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Edison Welding Institute. EWI, previously known as Edison Welding Institute, is a nonprofit engineering and technology organization dedicated to developing, testing, and implementing advanced manufacturing technologies for industry. Headquartered in Columbus, Ohio, USA, EWI offers applied research, manufacturing support, and strategic services ...
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