TABLE OF CONTENTS Whether you think you can or you can't you are right.
Henry Ford
The wire feed processes of gas metal arc and flux core welding consume over seventy percent of total filler materials used today and this percentage continues to grow. While this welding equipment may cost more than arc welding equipment of the same capabilities, it offers higher productivity. Not having to stop a bead, change electrodes, and restart again increases metal deposition rates and reduces weld discontinuities. Also, these processes are readily adapted to robotic/computer-controlled operations. Wire feed processes are relatively easy to learn, especially to those already trained in shielded metal arc welding, once the power source differences and voltage- amperage variables are understood. We will cover theory, equipment, materials, setup, adjustment, troubleshooting, and safety.
Gas Metal Arc Welding (GMAW)
What are the AWS designations for these processes?
Gas metal arc welding GMAW and flux-cored arc welding FCAW are the initials of the process names and the AWS designations.
What are other common names for GMAW?
GMAW is also commonly called MIG from Metal Inert Gas, wire feed welding or squirt welding. In Europe it is sometimes called MAG from Metal Active Gas.
What equipment makes up a GMAW setup?
Constant-voltage (CV) welding power supply.
Wire feeder containing wire feed motor, spool support, wire feed drive rolls, and associated electronics (may be an integral part of welding power supply or separate...
