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Weld Symbols on a Drawing – Refresh Your
Knowledge ANSI/AWS A2.479
The eight elements which may appear in a welding symbol are:
reference line, arrow, basic weld symbols, dimensions and other data,
supplementary symbols, finish symbols, tail and specification and
process or other reference. Let us discuss the one by one.
Reference Line: This is the basis of the welding symbol. All other
elements are oriented with respect to this line. The arrow is affixed to one
end and a tail, when necessary, is affixed to the other.
Arrow: This connects the reference line to one side of the joint in the case
of groove, fillet, flange, and flash or upset welding symbols. This side of
the joint is known as the arrow side of the joint. The opposite side is
known as the other side of the joint. In the case of plug, slot, projection,
and seam welding symbols, the arrow connects the reference line to the
outer surface of one of the members of the joint at the center line of the
weld. In this case the member to which the arrow points is the arrow side
member: the other member is the other side member. In the case of bevel
and Jgroove weld symbols,
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Weld Symbols on a Drawing – Refresh Your
Knowledge ANSI/AWS A2.479
The eight elements which may appear in a welding symbol are:
reference line, arrow, basic weld symbols, dimensions and other data,
supplementary symbols, finish symbols, tail and specification and
process or other reference. Let us discuss the one by one.
Reference Line: This is the basis of the welding symbol. All other
elements are oriented with respect to this line. The arrow is affixed to one
end and a tail, when necessary, is affixed to the other.
Arrow: This connects the reference line to one side of the joint in the case
of groove, fillet, flange, and flash or upset welding symbols. This side of
the joint is known as the arrow side of the joint. The opposite side is
known as the other side of the joint. In the case of plug, slot, projection,
and seam welding symbols, the arrow connects the reference line to the
outer surface of one of the members of the joint at the center line of the
weld. In this case the member to which the arrow points is the arrow side
member: the other member is the other side member. In the case of bevel
and Jgroove weld symbols,
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