Shielding gases, wire types, transfer modes, settings and troubleshooting.
41 cards · basic cards · AI-written, checked twice. Edit anything.
- What does GMAW stand for?
Show answer
Gas Metal Arc Welding- What does FCAW stand for?
Show answer
Flux Cored Arc Welding- What is the primary difference between GMAW and FCAW?
Show answer
GMAW uses external shielding gas; FCAW gets protection from flux inside the wire- What is the main principle of GMAW?
Show answer
Continuous wire feed electrode and external shielding gas create and maintain the arc- What are the three transfer modes in GMAW?
Show answer
Short-circuit, globular, and spray transfer- What is short-circuit transfer?
Show answer
Arc rapidly cycles between short and open, with 50-200 shorts per second- What is globular transfer?
Show answer
Large molten droplets form at wire tip and transfer across the arc gap- What is spray transfer?
Show answer
Fine, small droplets spray from wire across the arc gap at high velocity- In which transfer mode is spatter minimized?
Show answer
Spray transfer- What type of welding is short-circuit transfer best suited for?
Show answer
Thin materials and out-of-position welding- What are the primary applications for spray transfer?
Show answer
Flat and horizontal thick section welds in fabrication- What is the standard shielding gas mixture for mild steel GMAW?
Show answer
Argon with 15-25% CO2- What effect does increasing CO2 in the shielding gas mixture have?
Show answer
Increases penetration and heat input- Why is 100% argon used in some GMAW applications?
Show answer
Better arc stability and penetration for stainless steel and aluminum- What gas mixture is recommended for aluminum GMAW?
Show answer
Argon or argon with up to 10% helium
FlashKeepers