Metal Arc Gas Shielded Welding (MAGS) Flashcards

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1
Q

What is metal arc gas shielded welding also known as?

A

Also known as Metal Inert Gas Welding (MIG)

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2
Q

What shields the weld from oxidation in the case of MIG and MAGS?

A

an inert gas such as Argon or helium (MIG) or a mixture of gases (MAGS) shields the weld from oxidation.

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3
Q

How is MAGS a semi-automated process?

A

The filler wire is fed continuously into the weld area by a wire feed mechanism through a torch or gun

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4
Q

What does the protective coating on filler wire protect it from?

A

corrosion

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5
Q

Why can MAGS be used on both light sheet metal and on heavy plates?

A

as the wire feed rate and gas flow rate can be set

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6
Q

Why is MAGS often performed by robots in industry?

A

Because wire feed is continuous, and no slag is formed, MAGS welding is often performed by robots in industry.

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7
Q

What sort of power source is used in MAGS welding?

A

A D.C. power source

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8
Q

Give some pros and cons of MAGS welding

A

It is very fast welding, clean welds with no slag.

expensive equipment

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9
Q

List the steps of MAGS welding (4)

A
  1. The operator holds a gun which feeds a bare consumable filler wire electrode from a reel.
  2. The gun issues gas over the weld area to prevent it oxidising.
  3. MIG welding uses an inert gas such as argon.
  4. MAGS welding uses a mixture of gases e.g. argon and carbon dioxide
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10
Q

What must be labelled on a diagram for MAGS welding?

A

Label gas supply, wire feed mechanism, wire reel, gun,

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