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Welding: Principles and Applicatio...

8th Edition
Larry Jeffus
ISBN: 9781305494695

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BuyFindarrow_forward

Welding: Principles and Applicatio...

8th Edition
Larry Jeffus
ISBN: 9781305494695
Textbook Problem
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Why should you never change the current setting during a weld?

To determine

The reason for not changing the current setting during a weld.

Explanation

The low setting of the current while results in poor fusion and poor arc stability. The weld has slag or gas inclusions because the molten weld pool was not fluid long enough for the flux to react. The little penetration of the weld into the base plate may also be evident. The arc length gets short when the setting of the current is low. A short arc length results in frequent shorting and sticking of the electrode...

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