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Welding: Principles and Applicatio...

8th Edition
Larry Jeffus
ISBN: 9781305494695

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Welding: Principles and Applicatio...

8th Edition
Larry Jeffus
ISBN: 9781305494695
Textbook Problem
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How is the plasma arc stiffened?

To determine

The manner in which the plasma arc is stiffened.

Explanation

In plasma arc welding, a jet of plasma is produced by means of forcing gas to flow along an arc that is restricted electromagnetically as the gas flows through a nozzle.

The arc is formed between the workpiece and the electrode. In plasma arc welding, the arc of plasma can be separated from the envelope of the shielding gas by means of positioning the electrode inside the torch body.

The plasma arc welding apparatus is shown below.

  

  Figure-(1)

This type of welding is a constricted arc process...

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