Gas metal arc welding (GMAW)

GMAW process creates an electric arc between an automatically fed wire electrode and the work piece. While the arc heat melts the parent metal and filler wire,a supply of shielding gas that removes atmospheric gases from the weld zone is introduced around the arc.

The Gas metal arc welding procedure in need of many stuff such as: a reliable and constant votage power soure (DC), a wire feed unit, consumable wire electrodes, a shielding gas supply, a welding gun, a work clamp and leads.

Molten weld metal Gas nozzle Work Arc Wire guide and contact tip Direction of travel Solidified weld metal Shielding gas

GMAW equipment is more expensive than MMAW and furthermore, it requires a knowledgable welder to set up the arc welding machine properly. With regarding to skilled welder, they totally apply the GMAW process to weld nearly most materials in any welding positions

Typical utilization for GMAW process including:

• light/heavy fabrication
• general engineering
• most materials and thicknesses.