metal inert gas welding final 1
DESCRIPTION
It is the complete presentation on MIG welding.TRANSCRIPT
Metal Inert Gas Welding
Prepared by:Pratik AgrawalShubham SinghRajat SharmaSaurabh SanghviRohit Sawalia
Metal Inert Gas Welding
• Metal Inert Gas (MIG) or Gas Metal Arc Welding (GMAW) is the most popular of the arc welding processes.– It is mainly because it is easy to use and
versatile. – With an Inert Gas, such as Argon and Carbon
Dioxide:• MIG welding can be used to weld
aluminum, steel and various other metals.
• CO2 is generally used for steels.
Welding Circuit
Welder
Wire Spool
Welding Gun
Shielding Gas
Wire Feeder
Work CableWork Piece
MIG Welding Setup
Welding Power Source
Work Clamp
Welding Gun
Wire Spool
Shielding Gas
Wire FeederRegulator
How It Works
An arc is struck between a continuously fed filler wire and the work.
The arc is protected from oxidation by a shielding gas over the weld pool.
Difference between CO2 and Argon gas welding
Advantages
• Welds most metals• Little or no slag• Easiest to learn• Greater speed and efficiency• Fewer Weld Defects• Welds in most positions• Higher welding speeds• The process can also be automated easily
Disadvantages
-Not ideal for thick material or deep penetrating welds.
-Higher initial setup cost.
-Atmosphere surrounding the welding process has to be stable (hence the shielding gasses), therefore this process is limited to draught free conditions.
-Higher maintenance costs due to extra electronic components.
-The setting of plant variables requires a high skill level.
-Radiation effects are more severe.
Thank You