Introduction To GMAW

Question 1

What does GMAW stand for?

Answer 1

Gas Metal Arc Welding

Question 2

What is the most advantagious quality of GMAW?

Answer 2

Filler Wire Feed

Question 3

What is GMAW also known as?

Answer 3

MIG (Metal Inert Gas)

Question 4

How does in principle a GMAW process work?

Answer 4

In the welding process an electric arc is drawn between a metal electrode and the base metal. The heat from the arc melts the end of the electrode wire and an area of the base metal. The arc and the molten weld puddle are protected from atmospheric contamination by flow of shielding gas.

Question 5

Is GMAW a clean or dirty process?

Answer 5

Clean, no weld needing to be cleaned.

Question 6

What percentage of electrode wire is turned into weld deposit during GMAW use.

Answer 6

92-98%

Question 7

What percentage of electrode wire is turned into weld deposit during FCAW use.

Answer 7

82 - 92%

Question 8

What percentage of electrode wire is turned into weld deposit during SMAW use.

Answer 8

60 - 70%

Question 9

Which has high deposition rate SMAW or GMAW

Answer 9

GMAW