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Weld purging is the act of removing, from the vicinity of the joint; oxygen, water vapour and any other gases or vapours that might oxidize or contaminate a welding joint as it is being welded and immediately after welding. [1] Stainless steels, duplex steels, titanium-, nickel- and zirconium- alloys are sensitive to the presence of air, oxygen ...
Structural steel welding - Welding of steel structures subject to high levels of fatigue loading AS/NZS 1554.6: Structural steel welding - Welding stainless steels for structural purposes AS/NZS 1554.7: Structural steel welding - Welding of sheet steel structures AS/NZS 3992: Pressure equipment - Welding and brazing qualification AS/NZS 4855
TIG welding is most commonly used to weld thin sections of stainless steel and non-ferrous metals such as aluminium, magnesium, and copper alloys. A related process, plasma arc welding, uses a slightly different welding torch to create a more focused welding arc and as a result is often automated. [1]
The Canadian Welding Bureau, through CSA Standards W47.1, [3] W47.2 [4] and W186, [5] specifies both a WPS and a Welding Procedure Data Sheet (WPDS) to provide direction to the welding supervisor, welders and welding operators. The WPS provides general information on the welding process and material grouping being welded, while the WPDS ...
A pay scale (also known as a salary structure) is a system that determines how much an employee is to be paid as a wage or salary, based on one or more factors such as the employee's level, rank or status within the employer's organization, the length of time that the employee has been employed, and the difficulty of the specific work performed.
This is a list of welding processes, separated into their respective categories. The associated N reference numbers (second column) are specified in ISO 4063 (in the European Union published as EN ISO 4063 ). [ 1 ]
Typically, pay grades encompass two dimensions: a “vertical” range where each level corresponds to the responsibility of, and requirements needed for a certain position; and a “horizontal” range within this scale to allow for monetary incentives rewarding the employee's quality of performance or length of service.
Welder certification is based on specially designed tests to determine a welder's skill and ability to deposit sound weld metal. The main part of the welder's test consists of welding one or more test coupons which are then examined using non-destructive and destructive methods. The extent of certification is described by a number of variables ...