Unformatted text preview: between base material and consumable electrode rod; Rod is steel and covered with a flux that protects the weld area from oxidation and contamination. It does this by producing an Inert gas. Electrode acts as a filler material. 2. Gas Metal Welding (GMAW) a. Known as metal inert gas or mig welding. Semi automatic or automatic process that uses a continuous wire feed as an electrode and inert gas mixture to protect the weld from contamination. Small wire is fed through the machine through a cord through the handle. The gas comes through another line and meets at the handle. Goof for thin metals, sheet metal, and angle iron. Not suitable for outdoors work. 3. Gas Tungsten Arc Welding(GTAW)Heli Arc a. (Heli arc welding) (Tungsten Inert gas) (Tig Welding) Welding process that uses a non consumable tungsten electrode. Uses an Inert gas mixture and a separate filler material. Welding procedure used for alloy materials. Must have good skills Field Weld Symbols Process Equipment Pumps A pump increases the pressure of liquid/slurries. Moves from lower pressure to higher pressure. And ov...
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- Spring '09
- Arc welding, Gas tungsten arc welding, Gas metal arc welding, inert gas