test4 distortion Flashcards

(15 cards)

1
Q

Test4 distortion

A
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2
Q

Temperature expressed in F OR C

A

refers to the measure of the, intensity of energy

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3
Q

The term heast

A

expresses, quantity

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4
Q

Transitional expansion

A

occurs when metal changes from, one crystalline structure to another

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5
Q

Which type of distortion results from shrinkage across the weld that tends to pull a member of a tee joint toward the welded side

A

angular distortion

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6
Q

Which type of distortion results in an overall reduction in the length of the weld

A

longitudinal distortion

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7
Q

Which type of distortion refers to tendency in(butt joints) for the plates to draw together down the length of the joint as your welding

A

transverse distortion

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8
Q

What causes angular distortion in a vee groove weld if the plates are free to move

A

the non-uniform contraction of the weld metal

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9
Q

What is the primary cause of distortion created from longitudinal shrinkage

A

weld beads contracting upon cooling

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10
Q

What welding variable is more likely to have the plates of a butt joint drawn together causing transverse shrinkage

A

welding at a slower rate

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11
Q

What is one method to reduce transverse distortion

A

use a fast deposition rate

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12
Q

What is the purpose of balancing welds around the neutral axis of a worn shaft

A

to equalize contraction stresses of the weld

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13
Q

How can you help distortion on light gauge metal

A

more tacks

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14
Q

What is one characteristic of a good weld design

A

it uses formed or rolled sections

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15
Q

What is the advantage of using sub-assemblies

A

they provide more welds in flat position

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