Question: what is gmaw and smaw?
Answer: SMAW stands for “shielded metal arc welding” and is usually better known as Arc welding. GMAW stands for “gas metal arc welding” and is usually better known as MIG welding. ... GMAW however has no flux covering the electrode and relies on an external gases shield (CO2 or Argon/ CO2/Oxy mix) from a gas bottle.