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Welded Joints
What is welding?
Welding is an efficient method of making
permanent joints between two or more metal parts.
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Basic Types of Joints & Terms
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Types of joints
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Position of the weld symbols on the drawings
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Elementary welding symbols
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Elementary welding symbols
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Position of the symbol
Dual
Ref.Line
To be welded on the other
side
To be welded on the arrow
side
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Position of the arrow line
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ombination of elementary symbols
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ombination of elementary symbols
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ombination of elementary symbols
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RULES TO BE OBSERVED WHILE APPLYING SYMBOLS
1. S!"ols #o$ #illet %nd si!il%$ &elds "e s'o&n s()'
t'%t t'e*e$ti)%l +osition o# t'e s!"ol %$e indi)%ted on t'e le#t
'%nd
side o# t'e s!"ol,i$$es+e)ti*e o# t'e o$ient%tion o# t'e
&eld
!et%l.
-. I# t'e &elds %$e to "e !%de on t'e %$$o& side o# t'e
oint,t'e
)o$$es+ondin/ s!"ol s'o(ld "e +l%)ed eit'e$ %"o*e o$
"elo&
t'e )ontin(o(s $e#e$en)e line 0i/.2
3. I# t'e &elds %$e to "e !%de on t'e ot'e$ side o# % oint
,t'e
)o$$es+ondin/ s!"ol s'o(ld "e +l%)ed %"o*e o$ "elo& t'e
d%s'ed $e#e$en)e line 0i/.2
4. I# t'e &elds %$e to "e !%de on "ot' sides o# t'e % oint,
t'e
)o$$es+ondin/ s!"ols s'o(ld "e +l%)ed on "ot' sides o# t'e
$e#e$en)e line %nd t'e d%s'ed line is not s'o&n 0i/.2
5. T'e %$$o& o# t'e s!"ol !(st +oint to&%$ds t'e oint
&'i)'
$e6(i$ed &eldin/ 0i/.2
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7. W'en onl one !e!"e$ is to "e ed/e +$e+%$ed to !%8e t'e oint
,
t'e %$$o& s'o(ld +oint %t t'e +l%te 0i/. 9992
:. Di!ensions o# si;e %$e indi)%ted in !! &it'o(t
&$itin/ t'e (nit!!.
. I# % &eld is to "e !%de %ll %$o(nd % oint , % )i$)le
s'o(ld %lso "e
+l%)ed %t t'e el"o& ,)onne)tin/ t'e %$$o& %nd t'e
$e#e$en)e line.
0i/.99992
11. I# % &eld is to '%*e % #l(s' o$ #l%t #inis' , % st$%i/'t
line s'o(ld "e%dded %"o*e t'e s!"ol.
1-. T'e &eldin/ +$o)ess is indi)%ted , i# $e6(i$ed ,%t t'e
end o# t'e
%$$o&.0#i/99992
RULES TO BE OBSERVED WHILE APPLYING SYMBOLS
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!imensioning the weld
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!imensioning
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Edge preparation
