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CWI > CH. 3 FCAW Metal Joining & Cutting Processes > Flashcards

CH. 3 FCAW Metal Joining & Cutting Processes Flashcards

1
Q

What is self shielding?

A

electrode provide all necessary shielding . shielding gas is optional

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2
Q

Which is better for field welding?

gas shielding or self-shield

A

self-shield

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3
Q

Advantages of FCAW

A

High productivity ( high deposition rates )
Tolerates contamination
suitable for field work
deep penetration

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4
Q

Limitations of FCAW

A

smokey process
electorde cost
slag removal
equipment complexity

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5
Q

Discontinuities of FCAW

A 
porosity
incomplete fusion
cracking
slag inclusions
spatter
incomplete joint penetration
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6
Q

What are the 2 types of wire feed units of FCAW?

A

voltage sensing

constant feed

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CWI (6 decks)

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