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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 must GMA welders have a 100 % duty cycle?

To determine

The reason for the 100% duty cycle for GMA welders.

Explanation

The welding of metal can only be possible on DC current because DC current is direct and continuous current without any interruptions. The DC current allows the continuous flow of current through the welding electrode results in proper heating of the electrode.

Welding machine produces a DC welding current ranges from 40 A to 600 A with the voltage ranging from 10 volts to 40 volts, depending on the machine...

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