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Arc Welding
Fusion Weld
Where the edges of the base metal are melted together and solidify
Arc Welding
-Welding with electricity- where the Arc is the heat source
SMAW = Shielded Metal Arc WeldingGMAW = Gas Metal Arc WeldingFCAW = Flux Core Arc Welding
Striking an Arc
-Getting current flowing in the circuit- Two methods- scratching and
tapping
Machine/Amperage Setting
Heat setting on the machine- the higher the amp setting- the hotter
the Arc
Electrode
Welding rod (6013 / 6011)Coated with flux, the filler metal is
the same as the base metal.Consumed in the weld and becomes
part of the bead; adds strength to the weld.
Arc Length
-Distance from the end of the electrode to the base metal; equal to the diameter of the bare end of the
electrode.
Travel speed
-How fast the rod is moved along the base metal- Puddle should be two times the diameter of rod. 1” of
bead should equal 1” of electrode.
Electrode Angle-Travel Angle =The angle of the
electrode to the base metal in the direction of travel- should be 60’-80’F
-Work Angle = The angle of the electrode to the weld.
Base metal
-The metal the weld is being made on
Bead
-The deposited metal on the base metal by the melting electrode
Pass
-Each bead deposited on the base metal
Ultra Violet/Infrared Rays
• Rays emitted from the arc, harmful to eyes and skin.
Welding Helmet
• Used in arc welding to protect eyes and face from rays, heat, and sparks.
• #10 - #11 lens.
Electrode Holder
• Holds the electrode, provides a handle to hold while welding.
Ground Clamp
• Connected to the work table or piece of metal to complete the electrical circuit.
Welding Rod
• The Electrode (6013 / 6011)• Same metal as base metal.• Consumed in the weld and becomes part of
the bead; adds strength to the weld.
Leathers
• Protective clothing made from leather to protect the welder from heat, rays, and sparks.
• Jackets and aprons.