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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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What effect does shortening the electrode extension have on weld penetration?

To determine

The effect on weld penetration by shortening the electrode extension.

Explanation

The Gas metal arc welding currents are relatively high for the wire sizes. As the length of wire extending from the contact tube to the work increases the voltage of power source also increases.

If the voltage of power source is constant, then the system compensate for this change by reducing the current and it will result in lower heat production and low penetration of metal...

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