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31 Cards in this Set
- Front
- Back
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Differents from GMAW and FCAW |
FCAW uses fluxing agents in core of electrode wire. |
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Currents used for FCAW |
DCEP/ DCEN |
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FCAW electrode wire designed with DCEN ; longer stickout |
Self Shielded |
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Diameter of one wrap of wire when released from the spool. |
Cast |
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Distance between sever wrap of cast ( like spring). Excessive may result in feeding problems. |
Helix |
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Every pound of FCAW wire consumed, ________ becomes deposited metal. |
82-92% |
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FCAW electrode wire is ____________. |
Tubular |
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75% Argon, 25% CO2 or/and 100% CO2 Common gas for welding.... |
Mild Steel |
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Water cooled guns are available for FCAW rated up to ? |
600 Amps |
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Gas flow rate FCAW ________CFH |
35-50 |
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Most common metal transfer FCAW: |
Globular and Spray |
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FCAW Liners are made of ? |
Mild steel or stainless steel |
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FCAW is capable of welding on..... |
Carbon and low allow steels, stainless steel, cast iron. |
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Common FCAW power source used mainly in shops |
60% duty cycle |
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Gas shielded FCAW wires usually classified |
Rutile/ Basic |
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________ dispenses the shielding gas and hold the ________ in place. |
Diffuser , Contact TuBE |
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Caused by trapped hydrogen in weld |
Worm tracks |
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FCAW electrode range in diameter from |
.030" - 5/32" |
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AWS FCAW 0 indicates .... |
Flat an Horizontal |
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CSA FCAW 1 indicates.... |
All positions |
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When wire forcefully contacts work piece |
Stubbing |
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FCAW weld travel in this direction tends to get slag in weld. |
Forehand |
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Type of drive rolls used for FCAW |
Knurled |
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Tensile Strength measured in MPA is ... |
CSA Canadian Standards Association |
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CC machines have ________ pre-set or may have a range switch or separate cable attachment. |
Voltage |
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Why is a gas nozzle insulted? |
To prevent electrical contact between the nozzle and the wire. |
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What controls arc length with FCAW? |
Voltage |
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What is the advantage of using DCEN with FCAW? |
Good for welding on light gauge steel. |
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What part of FCAW equipment requires the most ongoing maintenance? |
Gun and cable assembly |
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One main advantage of metal cored wires is.. |
High deposition rates. |
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To weld in a tight spot would you use self-shielding FCAW or gas shielded FCAW? |
Self- shielding FCAW >less chance of porosity |
