Welding Flashcards by jimmy kent | Brainscape

Q

Preferred method for welding magnesium?

A

Gas shielded are

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Q

Safety hazard with magnesium?

A

If ignited, hard to extinguish

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Q

Why is flux needed for silver soldering?

A

Chemically clean base metal

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Q

Type flame for silver solder?

A

Neutral

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Q

Dented tube at a cluster?

A

Formed steel patch

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Q

Insert tight sleeve into tube?

A

Dry Ice

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Q

Three types of welding?

A

Gas, arc, resistance

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Q

How do you get a soft flame and not lose heat?

A

Larger tip size and adjusting px.

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Q

Common method for welding aluminum?

A

Gas shielded arc

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Q

Which valve should be turned off first?

A

Acetylene

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Q

How can you control expansion?

A

Track weld along joint

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Q

Precaution when completed?

A

Turn off valves, Relieve all px.

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Q

Aluminum alloy heat treated parts after welding?

A

Re-heat traded

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Q

Insufficient penetration?

A

Weak welds

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Q

Type of welding that causes less buckling and warping than gas?

A

Metallic arc

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Q

Gas shielded arc welding?

A

MIG and TIG

Inert gas is Dispersed during the welding process to protect weld from Oxidation

Q

Advantages of gas shielded arc?

A

Stronger, more ductile, corrosion resistant

Q

What is determined by the size of torch tip?

A

Amount of heat not temp