Glossy quiz Flashcards

1
Q

Bond

A

The point where the welding metal metal is joined with the base metal

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2
Q

Brazing

A

Welding technique uses a filler metal to create a bond. The filler metal is non-Ferris and has a melting point below the melting point of the base metal

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3
Q

Carbon arc welding

A

A welding method that involves creating an ark between a carbon electrode and a metal

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4
Q

Case hardening

A

This process hardens the surface of the metal by using inward, diffusion with gases or a liquid before applying heat

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5
Q

Coated electrode

A

The metal electrode is covered with asbestos, flux, paper or other metals to make the arc more stable and improve the welding metal

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6
Q

Critical temperature

A

The temperature which the material transitions from one crystalline form to another

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7
Q

Current density

A

The amount of aires applied per square inch across a particular area

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8
Q

Alloy

A

A metal made from two or more combined, elements

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9
Q

Annealing

A

The slow cooling of the metal to reduce internal stresses, make the material softer and change ductility

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10
Q

Arc welding

A

Is a general term that applies to many kinds of welding. The common denominator is using an arc to create heat. Arc welding may also use other filler materials or pressure to create a weld.

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11
Q

Direct current electrode negative (DCEN)

A

The metal being welded is the positive pole and the electrode is the negative pole of the arc

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12
Q

Direct current electrode positive ( DCEP)

A

The world medal is the negative pole and the electrode is the positive pole of the ark

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13
Q

Electric arc

A

An electrical current that forms in the gap between two electrodes creates an electric arc

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14
Q

Electrode

A

An electrode conduct the electrical current through a workpiece to create the weld.
There are many types of electrodes, some not all; electrodes are consumed in the welding process

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15
Q

Filler material

A

This is the metal that is added when making weld

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16
Q

Flame (oxygen) cutting

A

The chemical action of oxygen applies to the elements in the basement metal at high temperatures cut Ferrous metals

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17
Q

Flame (oxygen) gouging

A

This message message is used to create a groove in the metal using an oxygen cutting tool

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18
Q

Flame hardening

A

The metal surface is hardened, using a heated flame followed by a quick quench

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19
Q

Flame softening

A

This technique makes the metal softer by heating it and then slowly letting it cool down

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20
Q

Flux

A

This material cleans metals to prepare them for welding

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21
Q

Forehand welding

A

The flare is aimed at the metal ahead of the completed weld

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22
Q

GCAW stands for

A

Gas carbon arc welding
The world is accomplished by an electrical arc between a carbon electrode, and the welding metal argon or helium gas provides the shielding

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23
Q

GMAW stands for

A

Gas metal arc welding (MIG)
The heat from the arc produced between the electrode and the metal results in a weld a gas like helium provides the shielding. This technique is also called metal, inert, gas welding. (MIG)

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24
Q

GTAW stands for

A

Gas tungsten, arc welding (TIG)
Also called tungsten, inert, gas welding (TIG)

25
Q

Gas welding

A

A welding type where the heat for welding comes from a gas flame

26
Q

Groove weld

A

Creating this weld requires filler metal that goes in the groove between two metals to join them

27
Q

Hammer welding

A

Hammering two pieces of heated metal together

28
Q

Hydrogen brazing

A

A type of brazing in a furnace under a hydrogen atmosphere

29
Q

Normalizing

A

Iron base alloys are heated to 100°F above the critical temperature and then allowed to cool down in air temperature

30
Q

Oxyacetylene welding

A

The temperature needed for welding comes from burning a combination of acetylene and oxygen

31
Q

Oxy, hydrogen welding

A

The heat source for this welding method is a mixture of oxygen and hydrogen

32
Q

Oxy propane welding

A

The heat for welding comes from the burning of a mixture of oxygen and propane

33
Q

Peeing

A

Small hammer blows, stretch the surface of cold metals and reduce stress in the metal

34
Q

Percussive welding

A

This method involves applying high temperatures to the world site just before pressure is applied

35
Q

Plasma, arc welding

A

In this welding process, a constricted arc is created between a non-consumable electrode and the weld pool or between an electrode and the constricting nozzle.
Ionized gas coming out of the torch provides the necessary shielding

36
Q

Plug weld

A

A hole is cut in one piece of a metal. Another piece of metal is put behind the hole and the weld is made in the hole to connect the two pieces of metal.

37
Q

Hydromatic welding

A

This method is also called pressure controlled welding. Spot welds are made in a sequence, using more than one electrode under pressure

38
Q

Inert gas

A

Gas that does not combine chemically with metal

39
Q

Ionization potential

A

The amount of electrical voltage needed to create ionization of the materials, which either adds or removes electrons

40
Q

Ionization potential

A

The amount of electrical voltage needed to create ionization of the materials, which either adds or removes electrons

41
Q

Kerf

A

The width of a piece of metal removed by cutting

42
Q

Liquidus

A

The lowest temperature at which the metal or alloy turns liquid

43
Q

What is the acronym for MIG welding?

A

GMAW

44
Q

Multi impulse welding

A

Making more than one welded by using multiple pulses of electricity

45
Q

Nonferrous

A

These metals do not have any iron. Examples are titanium, nickel, leaded, copper bronze, brass, and aluminum.

46
Q

Porosity

A

This means that gas pocket or inclusions are present in the welded material

47
Q

Pressure controlled welding

A

This welding technique creates spot or projection, welded in sequence with pressure applied to the weld made by multiple electrodes

48
Q

Projection welding

A

Resistance, welding technique used between two services or the ends of one member and the surface of another

49
Q

Pulsation welding

A

The worlds for each spot receive more than one electrical pulse without the electrode moving or releasing the pressure

50
Q

Pulsation welding

A

The worlds for each spot receive more than one electrical pulse without the electrode moving or releasing the pressure

51
Q

Quenching

A

The rapid cooling of metal using water, air or oil

52
Q

Resistance welding

A

Heat is generated through the resistance to the electric current flowing through the circuit of which the welded metal is a part

53
Q

Resistance welding

A

Heat is generated through the resistance to the electric current flowing through the circuit of which the welded metal is a part

54
Q

Root of the joint

A

This is the part where the materials are joined are the smallest distance from each other, which could be an area a line or a point

55
Q

Root of the weld

A

The point where when observed from cross-section viewpoint, the bottom of the weld fuses, the base metal

56
Q

Seal weld

A

The main purpose of this world is to get a tight connection and prevent leaks

57
Q

Seem welding

A

This world forms a long line that connects joints in the welded material

58
Q

Yield strength

A

The amount of stress and material can withstand before it begins to deform plastically