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Gregory Jenkins Stick welding SMAW

Solid Metal Arc Welding Fumes and Gases can be dangerous Keep head out of fumes Use enough ventilation, exhaust at the arc, or both to keep gasses away from breathing zone The SMAW process can withstand wind and exhaust near the arc from ventilation equipment SMAW DCEP-direct current electrode negative The electrode Consumable- melted in the welding process Composed of two parts Core rod (metal filler) Carries welding current Becomes part of the weld E70XX E means electrode 70 is the tensile strength in KSI (70 thousand pounds per square inch The first X should be a number that stands for the position The second X is the type of coating used The Arc Arc occurs when the electrode comes in contact with the workpiece and completes the circuit Weld Puddle Protected by the flux Shielding gas A shielding gas is formed when the flux coating melts This protects the weld puddle from the atmosphere preventing contamination during the making Striking an arc Scratch the electrode on the base metals like a match Tap the rod against base metal to start Arc length After striking the arc, maintain a ⅛ inch distance between the electrode and the workpiece