SMAW (stick) Flashcards

(52 cards)

1
Q

What does SMAW stand for?

A

Shielded metal arc welding

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2
Q

What is shielded metal arc welding?

A

Stick (arc welding)

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3
Q

What is the basic explanation of shielded metal arc welding?

A

Coated electrodes (sticks) are melted by an electric arc to form a weld

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4
Q

What is the common temperature of shielded metal arc welding?

A

Over 9000 degrees Fahrenheit ( 4980 degrees Celsius)

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5
Q

What does ac stand for in terms of power

A

Alternating current

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6
Q

What does dc stand for in terms. Of power

A

Direct current

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7
Q

What does cc stand for in terms of power ?

A

Constant current

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8
Q

What does cv stand for in terms of power?

A

Constant voltage

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9
Q

What is a power source called that can accommodate both cc and cv power?

A

Multi process power sources

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10
Q

What power source is amperage adjustable on?

A

Cc output (constant current)

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11
Q

What power source is output and voltage adjustable on?

A

Cv output (constant voltage)

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12
Q

What determines the amperage output and duty cycle in reference to smaw and where is it found?

A

Thickness of metal
Continuous welding time
Nameplate of the power source and in the owners manual

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13
Q

What is the duty cycle?

A

The percentage of a 10 minute period that a welding power source can be safely operated at a given output

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14
Q

What are the two types of electrode holders?

A

Alligator jaw
Short stub

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15
Q

How are gases used in SMAW processes?

A

From flux burned of the electrode

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16
Q

What does slag do?

A

Protects the weld during cooling

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17
Q

What is the minimum temperature a rod oven should be kept at?

A

120 degrees C (250F)

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18
Q

What should be done with electrodes that have been left exposed to air for a length of time?

A

Dried for 1 hour between 370-430 C (700-800F)

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19
Q

What electrode should NOT be put in an oven?

A

E6010

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20
Q

What type of electrodes MUST be kept dry?

A

Low hydrogen

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21
Q

What is the American welding society (AWS) ID?

A

Electrode code

22
Q

What does the letter E mean in a AWS (American welding society) ID?

A

A covered arc welding electrode

23
Q

What do the first 2 digits indicate in an AWS (American welding society) ID?

A

Minimum tensile strength
In thousands of pounds per square inch (psi)

Ex. 70=70,000psi

24
Q

What does the third digit indicate in an AWS (American Welding Society) ID?

A

The position the electrode can be used in

25
How many position options are there?
4
26
What does the #1 in E7018 mean?
All position
27
What does the #2 in E7024 mean?
Flat and horizontal position
28
What does a #3 in the third digit of a AWS (American welding society) ID mean?
Electrode can be used in flat position only
29
What does a #4 in the third digit of a AWS (American welding society) ID mean?
Electrode can only be used in a flat and down position
30
What does the final digit indicate in a AWS (American weld Society) ID mean?
Indicates the type of coating and polarity
31
What does DCEN mean?
Direct current electrode negative
32
What does DCEP mean?
Direct Current electrode positive
33
What does the work clamp do?
Completes the welding circuit
34
How can a poor work connection be identified with SMAW ?
Checking the welding connections for warmth
35
If a welding connection is warm what should you do?
Up the wire size or check connections
36
If a welding current in SMAW is between 60-160 what colour shade should you be wearing?
8-10
37
If the welding current is between 250-550 what colour shade should you be wearing?
11-14
38
What is a magnifier in terms of welding shields?
A lens to replace wearing prescription glasses
39
What are the 4 types of welds used to fill a gap?
Root weld Filler Cover Finish
40
What weld goes on the bottom of a gap?
Root weld
41
What weld fills the most space and gives the most strength?
A filler weld
42
How many welding position numbers are there?
4
43
I’m terms of electrode identification what numbers indicate no oven?
0 and 1 for type of coating
44
What do the first 2 digits on an electrode identification mean?
Tensile strength x1000
45
What does the 3rd digit on an electrode identification mean?
Welding positions
46
What number means all position on an electrode identification?
Third digit #1 only
47
What does fast freeze mean in terms of electrodes (SMAW)
Takes form quickly ideal for horizontal and overhead
48
What does fast fill mean in terms of SMAW electrodes?
An electrode with a high deposit rate
49
How can you tell if the amperage is too high? (SMAW)
Electrode turns red Weld is red 3/4” after stopping arc
50
How large should the weld size be in comparison to the electrode?
2x the diameter of the core size
51
What is a keyhole in terms of SMAW?
Slight groove on the end/beginning of the weld indicating proper penetration
52
When is a weld too tall with not enough penetration?
If it’s 1/8” above the metal or greater