![]() ![]() Electric current is used to strike an arc between the base material and consumable electrode rod, which is made of steel and is covered with a flux that protects the weld area from oxidation and contamination by producing CO 2 gas during the welding process. The process can be applied to a wide variety of metals, both ferrous and non-ferrous.Īlso known as stick welding. ![]() GMAW is well suited to production welding. ![]() The equipment required to perform the GMAW process is more complex and expensive than that required for SMAW, and requires a more complex setup procedure. Since the electrode is continuous, welding speeds are greater for GMAW than for SMAW. It is a semi-automatic or automatic process that uses a continuous wire feed as an electrode and an inert or semi-inert gas mixture to protect the weld from contamination. ![]()
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