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SOC > SOC Welding > Flashcards

SOC Welding Flashcards

1
Q
  1. How open do you want the oxygen tank to be?
A

Open the valve all the way and back seat it. Turn on slowly so the regulator does not explode.

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2
Q
  1. What are the welding positions?
A 
1G = FLAT
2G = HORIZONTAL
3G = VERTICAL 
4G = OVER HEAD
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3
Q
  1. What types of electricity operate on welding rod?
A

A/C and D/C

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4
Q
  1. What are the three component of Arc Welding machine?
A

Ground clamp
Electrode Clamp
Welding Rods (Electrodes)

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5
Q
  1. What are the four types of Welding?
A

SMAW/ shielded metal arc welding (stick welding)

MIG / Metal inert gas welding AKA GMAW

FCAW / Flux core arc welding

TIG / Tungsten arc welding

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6
Q
  1. How are MIG Electrode types labeled?
A

It is manufactures standard code to identify types of electrode
ER- An electrode or filler rod that is used in either a wire feed or TIG welding.
70- A minimum of 70,000 pounds of tensile strength per square inch of weld.
S -Solid wire.
6- The amount of deoxidizing agent and cleansing agent on the electrode.

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7
Q
  1. What is MIG welding wire size range?
A

.023
.030
.035
.045

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8
Q
  1. What are the three things a MIG welder requires?
A

Electricity to produce heat
An electrode to fill the joint
Shielding gas to protect the weld from the air

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9
Q
  1. What is the most common wire used welding carbon steel?
A

ER 70S-6

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10
Q
  1. In oxygen acetylene cutting, what is the bigger tank?
A

Oxygen

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11
Q
  1. What is the last two digits on rod stand for?
A

It refers to, the flux or shielding on the rod. The higher the number the more shielding, flux, and or metal is deposited. A (XX11) has a lot less coating then a (XX24).

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12
Q
  1. What types of voltage and polarity type used in MIG?
A

D/C electrode positive

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13
Q
  1. What color are the acetylene hose and oxygen hose?
A

Acetylene pipe = Red

Oxygen pipe = Green

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14
Q
  1. What are the most common welding rods?
A 
6010
6011
6013
7018
7024
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15
Q
  1. How is the strength of the weld indicated on the rod?
A

By the first two digits in the rod number

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16
Q
  1. What is MIG Welding?
A

MIG welding is most commonly used in fabrication shops where production is high, and the possibility of wind blowing away your gas shielding is unlikely. It is also known as Gas Metal Arc (GMA) or GMAW

17
Q
  1. What are three common types of metals which are welded with a MIG welder?
A

Carbon steel.
Stainless steel.
Aluminum, with a special feeder because aluminum wire is very soft.

18
Q
  1. What gases are used for MIG welding?
A

Argon
Carbon dioxide
Helium

19
Q
  1. What are the disadvantage of using MIG?
A 
Welder cannot be too far from machine
Wind is a major factor outdoors
Always need a bottle of gas
It needs to be well maintained
Contact tips seize up from spatter
Require clean joint
Very annoying to trouble shoot
20
Q
  1. What are the advantage of using MIG?
A 
Clean with very little smoke
Cheap and fast production
Excellent for spot and tack weld
Long welds with less restarts
Easy/low skill
21
Q
  1. What is the name of the tool used to light the torch?
A

Torch striker

22
Q
  1. What does the first two digits of the rod type stand for?
A

Tensile strength per square inch of weld. (60XX stands for a minimum of 60,000 pounds tensile strength per square inch of weld)

23
Q
  1. What are the three welding techniques?
A

Whipping (Back and forth)
Circle
Weaving (Side to side)

24
Q

What should you do before cutting with a torch?

A

Inspect the oxygen tank, the acetylene tank, and the hoses for damage. Conduct a leak check by pressurizing the hoses and watching the gauges to see if the pressure drops.

25
Q

How do you check for hose leaks?

A

If the gauges drop after being pressurized.

26
Q

How much do you open the acetylene tank?

A

1/2 to 3/4 turn. Until the gauge gets a good reading.

27
Q

How do you achieve a good, solid weld?

A

Joint preparation and proper machine set up.

28
Q

Why do you need a rod/stick warmer/oven?

A

To keep the rods dry.

29
Q

Set up for stick welding

A

Select rod
Set polarity of the machine
Set amperage range

30
Q

What is the polarity for 6011 rods?

A

Most rods work with both AC and DC

31
Q

What should you do before continuing a previous weld?

A

Clean the area with a hammer and brush.

32
Q

What does the type of gas used for a MIG weld affect?

A

Penetration depth
Characteristic of the arc
Mechanical properties of the weld

SOC (13 decks)

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