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33 Cards in this Set
- Front
- Back
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Difference between brazing and braze welding |
Both melting points must be above 425 c but brazing is when the filler metal is drawn into the joint using capillary attraction, but braze welding the filler metal fuses the top plate and bottom plate together with out filling the gap |
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What is a flash back |
When the flame moves beyond the the mixing chamber or torch |
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Whatbis used to prevent flashbacks |
Flashback arresters |
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What psi should the fuel be at for oxy cutting |
For acetylene 4-5 for chemtane 5-6 |
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What psi should the oxygen be at for oxy cutting |
35-40 psi |
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What color are oxygen and fuel hoses |
Red (left hand thread) for fuel. And green(right hand thread) for oxygen |
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What is( direct current electrode positive) aka DCEP |
When the + lead is is connected to the electrode and the - is connected to the workpiece |
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What is (direct current electrode negative) aka DCEN |
When the + lead is connected to the work peice and the - lead is connected to the electrode |
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What are two methods of starting an arc on stick welding |
Tap start or a scratch start |
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What is the usual distance for a tie in |
1/4 inch usual |
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Proper striker work angle to start arc |
90 degrees |
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Travel angle with striker |
20-30 degrees in the direction of travel |
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Distance off the plate controls what and what is the proper distance to keep it |
Controls the arc gap, and proper distance off the plate is the thickness of the rod your using. |
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What effects the penetration of the metal |
The travel angle |
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What would the E stand for in E 6010 rod |
Electrode |
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What does the 60 stand for in E 6010 rod |
Strength in psi |
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What does the 1 stand for in E 6010 rod |
Position |
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What does the last 0 stand for in E 6010 rod |
Type of coating and current |
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What is position 1 |
Flat, horizontal, vertical, and overhead |
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What is position 2 |
Flat and horizontal only |
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What is position 3 |
Flat, horizontal, verticlal down, and overhead |
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What is the arc forcen |
This prevents the electrode from sticking during welding |
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What is 80 % of welding problems |
Bad ground connection |
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Two main factors that control wire feed welding |
The wire feed speed. And the voltage |
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What is slag |
The coating that forms on the top of an arc weld |
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How do you get rid of slag |
Chipping hammer and wire brush |
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Two types of gauges on oxygen and fuel tanks |
Tank pressure and working pressure |
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Safety features on oxygen tanks |
Flashback arresters, and bursting disks |
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Safety features in fuel tanks |
Flashback arrestors, and fusible plugs |
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What is the proper order to turn on a oxy welder or cutting torch |
Fuel on first, fuel off first |
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Direction of travel with a cutting torch |
Push the torch never drag |
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2 main types of welds |
Fillet weld , and a Grove weld |
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4 types of joints |
Butt joint, outside corner, lap joint, T joint |
