Sagot :
Answer:
In arc welding, an electrode is used to conduct current through a workpiece to fuse two pieces together. Depending upon the process, the electrode is either consumable, in the case of gas metal arc welding or shielded metal arc welding, or non-consumable, such as in gas tungsten arc welding.
[tex]ANSWER[/tex]
- The arc burns between the workpiece and the electrode. This creates the required fusion heat.
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