Carbon Arc Welding (CAW) is a process which produces coalescence of metals by heating them with an arc between a nonconsumable carbon (graphite) electrode and the work-piece. It was the first arc-welding process ever developed but is not used for many applications today, having been replaced by twin carbon arc welding and other variations. The purpose of arc welding is to form a bond between separate metals. In carbon arc welding a carbon electrode is used to produce an electric arc between the electrode and the materials being bonded. This arc produces extreme temperatures in excess of 3,000°C. At this temperature the separate metals form a bond and become welded together.
Contents |
CAW could not have been created if not for the discovery of the electric arc by Sir Humphry Davy in 1800, later repeated independently by a Russian physicist Vasily Vladimirovich Petrov in 1802. Petrov studied electric arc and proposed its possible ways of usage, including for welding.
The inventor of carbon arc welding was another Russian, Nikolay Benardos, who developed this method in 1881 and patented it later under the name Elektrogefest ("Electric Hephaestus").
(Picture provided by Answers.com, http://www.answers.com/topic/carbon-arc-welding?cat=technology)
|
||||||||||||||||||||||
   | Commonly Used Welding Processes and their Abbreviation - Welding Processes and their Abbreviation |
| | The Welding Institute - TWI - welding experts |
| | The American Welding Society - American Welding Society - Home Page |
|
|
Wikis
Quiz
Search
