3 PurgeTo blow or clean out the lines on the Oxy/Acetylene setup
4 Flux Powdered coating around the electrode used in SMAW process. 1) Cleans metal/weld while welding2) Cools Metal/weld/electrode while welding3) Stabilizes the arc while welding4) Keeps out atmospheric gases from the molten puddle
5 ElectrodeFlux covered conductive rod used as filler in the SMAW process
6 SlagProtective coating over completed weld made up of burnt flux, impurities that have rose to the top of weld which aid in the cooling process.
7 CraterIndentation in the weld (below base metal) usually happens at the end of the weld
8 Arc LengthDistance between the tip of the electrode and the base metal. Also known as Arc Gap.Long Arc = large GapShort Arc = Small GapShorter the Gap = Cooler the ArcLonger the Gap = Hotter the Arc
9 Rod Angle Angle the electrode is held from the base metal 1)Base Angle (BA)2)Direction of Travel Angle (DOTA)
10 Porosity Gas Pocket in/on the weld that is a defect in the weld. Long arc will causeDirty base metalBroken flux from the rod.
13 Ductility Ability of metal to be bent or stretched without breaking 1) Rolled2) Bent3) Stretched
14 Alloy What metal is made up of (Elements) 1) Periodic Table Zinc MagnesiumIron
15 Flashback/BackfireHissing or Popping sound from tip of torch caused by gas and flame going back into the tip.Tip to closeDirty TipMalfunction of equipment
16 Amps The measure of Electrical Flow 1) electrons traveling 2) Water running out of a garden hose would be compared to Amps3) Water Flow/Electrical Flow
17 Volts Measure of Electrical Pressure 1) Force of electrons 2) Compared to your finger over a running garden hose to generate more pressure.3) water pressure/Electrical pressure
18 PuddleMolten metal that follows the electrode, this solidifies to create the weld.
19 Arc Flash/Flash BurnDangerous lights produced during Arc Welding that damage your eyes/skin if not protected with shaded/filtered lens or protective clothing.Dangerous lights: Ultraviolet/InfraredArc Flash: Burns unprotected eyesFlash Burn: Burns unprotected skinSMAW <125 amps shade 10