| . |
|
WELDING, CUTTING, AND BRAZING |
. | |||
Arc Welding and Cutting - Introduction |
||||||
|
In the arc welding process, an electric current passing through the welding
rod or electrode is forced to jump or arc across a gap. The resulting arc produces the
intense heat necessary for the welding or cutting operation. Arc welding is used to fabricate nearly all types of carbon or alloy steels, the common nonferrous metals, and is indispensable in the repair and reclamation of metallic machine parts. Arc cutting is primarily used for rough cuts or for scrapping because of the uneven cut that results. It has also been used for underwater cutting in salvaging operations. While most precautions and safe practices are common to oxy-fuel gas welding, there are some that are unique to either gas or arc welding. |
|||||
|
||||||
| . |
