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Welding > Terminology > Flashcards

Terminology Flashcards

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Welding Inspection Basics flashcards
1
Q

Acceptable weld

A

A weld that meets the acceptable requirements

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2
Q

Acetone

A

A colorless, flammable, volatile liquid used as a paint remover and as a solvent for oils and other organic compounds. Used in acetylene cylinders to saturate the monolithic filler material to stabilize the acetylene

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3
Q

Acetylene feather

A

The intense white, feathery-edge portion adjacent to the cone of a carburizing oxyacetylene flame

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4
Q

Actual throat

A

The shortest distance between the weld root and the face of a fillet weld

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5
Q

Adhesion

A

A state of being stuck together. The joining together of parts that are normally separate

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6
Q

AISI

A

The American Iron and Steel Institute

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7
Q

Aluminum

A

One of the chemical elements, a silvery, light weight, easily worked metal that resists corrosion

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8
Q

Ampere

A

A unit of electrical current measuring the rate of flow of electrons through a circuit. One ampere is equivalent to the current produced by one volt applied across a resistance of one ohm

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9
Q

Annealing

A

A process of heating then cooling metal to acquire desired qualities such as ductility

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10
Q

Anode

A

The positive terminal of an electrical source

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11
Q

Arc cutting

A

a group of thermal cutting processes that severs or removes metal by melting with the heat of an arc between an electrode and work piece

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12
Q

Alloy

A

a substance with metallic properties, composed of two or more chemical elements of which at least one is metal

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13
Q

alloying element

A

elements added in large enough percentages to change the characteristics of the metal. such elements may be chromium, manganese, nickle, tungsten, or vanadium; these elements are added to produce specific physical properties such as hardness, toughness, ductility, strength, resistance to corrosion or resistance to wear

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14
Q

alloy steel

A

a plain carbon steel to which another element, other than iron and carbon, has been added in percentage large enough to alter its characteristics

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15
Q

alternating current (AC)

A

an electric current that reverses in direction periodically

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16
Q

alternative fuels

A

propane, methylacetylene propane (MPS), natural gas, or fuel gasses, other than acetylene used for welding or cutting

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17
Q

arc blow

A

the deflection of an arc from its normal path because of magnetic forces

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18
Q

arc force

A

the axial force developed by an arc plasma

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19
Q

arc gap

A

a nonstandard term used for arc length

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20
Q

arc gouging

A

thermal gouging that uses an arc cutting process variation to form a bevel or groove

21
Q

arc plasma

A

a gas that has been heated by an arc to at least a partially ionized condition, enabling it to conduct electric current

22
Q

arc spraying

A

a thermal spraying process using an arc between two combustible electrodes or surfacing materials as a heat source and compressed gas to atomize and propel the surfacing material to the substrate

23
Q

arc strike

A

a discontinuity resulting from an arc, consisting of any localized re-melted metal, heat-affected metal, or change in surface profile of any metal object

24
Q

arc time

A

the time during which an arc is maintained in making an arc weld

25
Q

arc welding

A

arc welding is a group of welding processes in which fusion is produced by heating with an electric arc or arcs with or without the application of pressure and with or without the use of filler metal

26
Q

arc voltage

A

the voltage across the arc

27
Q

as welded

A

the condition of weld metal, welded joint, and weldments after welding, but prior to any subsequent thermal or mechanical treatment

28
Q

ASTM

A

american society for testing and materials

29
Q

austenite

A

one of the basic steel micro-structures wherein carbon is dissolved in iron. ausenite forms at elevated tempatures

30
Q

autogenous weld

A

a fusion weld made without filler material

31
Q

AWS

A

american welding society

32
Q

axis of a weld

A

a line through the length of a weld, perpendicular to and at the geometric center of its cross section

33
Q

back bead

A

a weld bead resulting from a back weld pass, back beads are made after the primary weld is complete

34
Q

back fire

A

the momentary recession of the flame into the welding tip, or cutting tip followed by immediate reappearance or complete extinction of the flame, accompanied by a loud popping report

35
Q

backgouging

A

the removal of weld metal and base metal from the weld root side of a welded joint to facilitate complete fusion and complete joint penetration upon subsequent welding from that side

36
Q

backhand welding

A

a welding technique in which the welding torch or gun is directed opposite the progress of welding

37
Q

backing

A

material or device placed against the back side of a joint to support and retain molten weld metal. the material may be partially fused or remain unfused during welding and may be metal or non metal (metal strip, asbestos, carbon, copper, inert gas, ceramics).

38
Q

backing bead

A

a weld bead resulting from a backing pass. backing beads are completed before welding the primary weld

39
Q

backing pass

A

a weld pass made to provide a backing for the primary weld

40
Q

backing ring

A

backing in the form of a ring, generally used in the welding of pipe

41
Q

backing strip

A

non-standard term used to describe a backing on the root side of the weld in the form of a strip

42
Q

back step sequence

A

a longitudinal sequence in which weld passes are made in the direction opposite the weld progression, usually used to control distortion

43
Q

back weld

A

a weld made at the back of a single groove weld

44
Q

bainite

A

a steel micro structure that is harder than pearlite, cementite, or ferrite, and more ductile than martensite

45
Q

base material

A

the material that is welded, brazed, soldered or cut

46
Q

bead weld

A

a term used for surfacing welds

47
Q

bevel

A

an edge preparation, the angular edge shape

48
Q

bevel angle

A

the angle between the bevel of a joint member and a plane perpendicular to the surface of the member

Welding (16 decks)

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