Metal Arc Gas Shielded Welding (MAGS) Flashcards
What is metal arc gas shielded welding also known as?
Also known as Metal Inert Gas Welding (MIG)
What shields the weld from oxidation in the case of MIG and MAGS?
an inert gas such as Argon or helium (MIG) or a mixture of gases (MAGS) shields the weld from oxidation.
How is MAGS a semi-automated process?
The filler wire is fed continuously into the weld area by a wire feed mechanism through a torch or gun
What does the protective coating on filler wire protect it from?
corrosion
Why can MAGS be used on both light sheet metal and on heavy plates?
as the wire feed rate and gas flow rate can be set
Why is MAGS often performed by robots in industry?
Because wire feed is continuous, and no slag is formed, MAGS welding is often performed by robots in industry.
What sort of power source is used in MAGS welding?
A D.C. power source
Give some pros and cons of MAGS welding
It is very fast welding, clean welds with no slag.
expensive equipment
List the steps of MAGS welding (4)
- The operator holds a gun which feeds a bare consumable filler wire electrode from a reel.
- The gun issues gas over the weld area to prevent it oxidising.
- MIG welding uses an inert gas such as argon.
- MAGS welding uses a mixture of gases e.g. argon and carbon dioxide
What must be labelled on a diagram for MAGS welding?
Label gas supply, wire feed mechanism, wire reel, gun,