Still with Piping & Fabrication with General Definitions of Piping System and we continue from the last post and hope this will be useful to all of us.
Annealing
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| Annealing |
Heating a metal to a temperature above a critical temperature and holding above that range for a proper period of time, followed by cooling at a suitable rate to below that range for such purposes as reducing hardness, improving machinability, facilitating cold working,
producing a desired microstructure, or obtaining desired mechanical, physical, or other properties.3 (A softening treatment is often carried out just below the critical range which is referred to as a subcritical annealing.)Arc Cutting
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| Arc Cutting |
A group of cutting processes in which the severing or removing of metals is effected by melting with the heat of an arc between an electrode and the base metal (includes carbon, metal, gas metal, gas tungsten, plasma, and air carbon arc cutting). See also Oxygen Cutting.
Arc Welding
Arc Welding
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| Arc Welding |
A group of welding processes in which coalescence is produced by heating with an electric arc or arcs, with or without the application of pressure and with or without the use of filler metal.3,4
Assembly
Assembly
The joining together of two or more piping components by bolting, welding, caulking, brazing, soldering, cementing, or threading into their installed location as specified by the engineering design.
Automatic Welding
Automatic Welding
Welding with equipment which performs the entire welding operation without constant observation and adjustment of the controls by an operator. The equipment may or may not perform the loading and unloading of the work.3,5
Finally General Definitions from letter A is finish and we continue in the next post with General Definitions from letter "B".
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