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Carbon arc welding (CAW) utilizes a nonconsumable electrode, made of carbon or graphite, to establish an arc between itself and either a workpiece or another carbon electrode. This article describes the operation modes of the CAW process: single-electrode operation and twin-electrode operation. It presents a schematic representation of typical arrangements for single-electrode and twin-electrode carbon arc welding. Recommended current ranges for carbon and graphite electrodes are listed in a table. The article concludes with information on the applications of the CAW process.

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Lance Soisson, Carbon Arc Welding, Welding, Brazing and Soldering, Vol 6, ASM Handbook, Edited By David LeRoy Olson, Thomas A. Siewert, Stephen Liu, Glen R. Edwards, ASM International, 1993, p 200–201,

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