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SMAW Agriculture Science 1
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SMAW Shielded Metal Arc Welding Stick welding Arc Welding
A welding process where similar materials are joined with a heating process caused by an electric arc. In the most common use, this process includes the use of a filler metal.
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Why arc weld? Who has arc welded before? Careers in Arc welding
Versatility
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Careers Inspector/Expeditor Rail Road-Bridge Crew, Welder
Welding Engineer Welder Weld Engineer Associate Steel Inspector Underwater Welding Sales Manager
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Versatility Weld almost any metal Strength Cost effective
Durability of weld Most common type of welding Repair work Employment Ability to weld in difficult places
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Safety Safety Glasses Welding Helmet Gauntlet style gloves
100% Cotton Clothes-LONG SLEEVES! No cuffs in pants or frays Leather Boots No Watches Flammable Liquids on Clothes
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One glove missing Improper gloves Apron tied in front Wearing a watch Tie not tucked in No safety glasses Wearing a ring Pants are cuffed
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Welding Terms Electrode Electrode Holder Ground Root Pass Filler Pass
Cover Pass Slag Spatter Undercutting Tack Arc Amperage Flux
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Electrode Classification
E - Electrode 60 – Products minimum tensile strength: 60 = 60,000 psi 1 - Welding position: 1 = ALL, except vertical down 3 – Indicates coating type (RUTILE), welding current and polarity
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Techniques Stringer (drag) (whip) Weave circles crescent zig zag
box weave stitch
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Weld Bead A weld resulting from a pass Stringer Bead Weave Bead
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Passes Weld Pass - A single progression of welding along a joint. The result of a pass is a weld bead or layer
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Fill Pass Cover Pass Root Pass Hot Pass
Hot pass - one or two beads. But keep it open
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Progression (vertical)
Up deeper penetration Higher deposit rate (lb/hr) Use near 90 degree travel angle or slightly up Down faster (point to point) less penetration for thin metal Use steep drag angle
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