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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 may occur if an SMA welding machine has below minimum arc voltage for air carbon arc gouging?

To determine

The outcome if an SMA welding machine has below minimum arc voltage for air carbon arc gauging.

Explanation

The shielded metal arc welding power sources are mostly used for air carbons arc cutting. The minimum operating voltage that must be required for this process is 35 volts.

If the voltage gets lower than 35 volts the arc will tend to sputter out and cause difficulties to create clean cuts. The main reason for this is most carbon cutting requires high amperage current for great heat generation.

The high amperage of current reduces the travel time as well as the duty cycle of the worker...

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