Welding, Pipes and Symbols

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					Symbols, Welding
  and Piping
Symbols
       Links are drawn in
        schematic form on
        technical drawings and for
        engineering design
        analysis.
       This figure shows the
        schematic symbols used
        for linkage drawings.
       With CAD, these symbols
        can be drawn once, placed
        in a symbols library, then
        used on many drawings.
            What is welding
   Welding is a process used to join
    metals by the application of heat.
    Fusion welding, which includes gas,
    arc, and resistance welding, requires
    that the parent metals be melted.
Welding Drawing
           Welding drawing is
            a detailed
            multiview drawing
            of all the parts
            assembled, with
            accompanying
            welding symbols.
             Weld Symbols
   AWS and ANSI have standardized
    the weld symbols used to describe
    welds on technical drawing. The weld
    symbol completely describes the
    specifications for welding a joint, and
    a bent line with an arrow at the end
    points at the joint to be welded.
The eight basic parts to a complete
         weld symbol are:
   Reference line
   Leader line and arrow
   Basic weld symbol
    (location/depth of
    weld)
   Finish symbol
   Weld symbol (type of
    weld)
   Dimensions
   Supplementary
    symbols
   Tail and specifications
The structure of the welding symbol
What is piping
        Piping is a thin strip
        of covered cord
        used to edge
        hems.
              Piping Drawings
   Piping drawings are
    used in the design and
    construction of oil
    refineries, chemical
    plants, tank farms,
    and other
    applications.
   With CAD, it is
    possible to create a
    virtual model of the
    process plant in the
    computer.
              Pipe Drawings
   Pipe drawings are
    2-D
    representations of
    piping systems.
    Such drawing use
    graphic symbols
    for the design,
    construction, and
    maintenance of
    process systems.
                     Piping
   Double-line
    drawings represent
    pipes as two
    parallel, solid black
    lines. Double-line
    drawings take
    more time but are
    much more
    realistic looking
    than single-line
    drawings.
              THE END
       Production and Research

   Juan Carranza
   Rosevelt Rios
   Bassem Kheireddin
   Juan Salinas

				
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posted:9/17/2012
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