1' Shielded arc welding is a fusion process where heat is obtained from an electric arc which is for - PowerPoint PPT Presentation

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1' Shielded arc welding is a fusion process where heat is obtained from an electric arc which is for

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1- What is sheilded arc welding? 2- What are some safety precautions for sheilded ... Some basic welds are Butt, Tee, Lap V, and positions are Flat, Horizontal, ... – PowerPoint PPT presentation

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Title: 1' Shielded arc welding is a fusion process where heat is obtained from an electric arc which is for


1
  • 1. Shielded arc welding is a fusion process where
    heat is obtained from an electric arc which is
    formed between a base metal and an electrode.
  • 2. Some safety precautions are
  • A) Don't strike arc until helmet is in place
  • B) Wear proper clothing
  • C) Hold electrode by insulated handle
  • D) Proper ventilation
  • E) Avoid welding near combustable material
  • F) Always wear safety glasses
  • G) Never stand in water when welding
  • H) Never weld on closed conainers
  • 3. Hold the elctrode at a 15 degrees travel
    angle and either tap or strike an arc then
    position electrode 1/8 inch from metal.

2
  • 4. Some basic welds are Butt, Tee, Lap V, and
    positions are Flat, Horizontal, Vertical and
    Overhead.
  • 5. Some equipment is
  • A) Grinder E) Chipping Hammer
  • B) Helmet F) Clothes
  • C) Vice G) Helmet
  • D) Wire Brush H) Pliers
  • 7. An electrode is a metal rod coated with Flux
    the numbers on the rod stand for 601 1 -
  • 60 60,000 lbs per square inch
  • XX 1 Position 1 All 2 Flat and Horizontal
    3 Flat
  • XXX 1 Polarity
  • 1,3,4,8AC or DC Reverse 2 AC or DC straight 0
    DC Reverse

3
  • 8. Metal should be cleaned of oil, paint, rust,
    and ground to bevel if over 1/4".
  • 9. Cutting is done by turning amps up 150 and
    pushing rod through metal.
  • 10. The amp setting is determined by the rod
    size and metal thickness
  • 11. The size of rod used is based on the
    thickness of metal.
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