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 Welding GMAW = Gas Metal Arc Welding FCAW = 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.