note 2 essential and non essential variables rev1.pptx
TRANSCRIPT
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Dr Mahamad Noor Wahab
ESSENTIAL AND NONESSENTIAL VARIABLES
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WELDING DATA
A set of Welding Variables involved in Preparing a Weldoint!
ESSENTIAL VARIABLE
" A #$ange in %elding #ondition %$i#$ %ill a&e#t t$e
'e#$ani#al properties (Ot$er t$an not#$
to)g$ness*of %eld +oint !
S,PPLE-ENTAR. ESSENTIAL VARIABLE
" A #$ange in %elding #ondition %$i#$ %ill a&e#tt$e not#$ to)g$ness properties of %eld +oint
NONESSENTIAL VARIABLE" A /$ange in %elding #ondition %$i#$ %ill not a&e#tt$e 'e#$ani#al properties of t$e %eld +oint
WELDING PRO/ED,RE0,ALI1I/ATION
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PROCEDURE QUALIFICATION - QW-253
SMAW VARIABLE
Group ofVariables Brief Of Variables Essential
Supplementary Essential
Non-Essential
QW 402
Joints
Can!e in Groo"e #esi!n --- --- $
%&&ition ' #eletion of Ba()in! --- --- $
QW 40*Base +etals
Can!e in !roup Of , No --- $ ---
.imits /mpa(t --- $ ---
't .imits
20* mm $ --- ---Can!e in Qualifie& $ --- ---
t1 pas* mm $ --- ---
Can!e of , Number Qualifie& $ --- ---
QW 404
3iller +etals
Can!e in 3 No $ --- ---
Can!e in % No $ --- ---
Can!e in #ia --- --- $
Can!e in #ia mm --- $ ---
Can!e in %WS (lassifi(ation --- $ ---
Can!e in t 5ualifie& $ --- ---
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0W 234!5
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PROCEDURE QUALIFICATION - QW-253
SMAW VARIABLE
Group ofVariables Brief Of Variables Essential
Supplementary Essential
Non-Essential
QW 402
Joints
Can!e in Groo"e #esi!n --- --- $
%&&ition ' #eletion of Ba()in! --- --- $
QW 40*Base +etals
Can!e in !roup Of , No --- $ ---
.imits /mpa(t --- $ ---
't .imits
20* mm $ --- ---Can!e in Qualifie& $ --- ---
t1 pas* mm $ --- ---
Can!e of , Number Qualifie& $ --- ---
QW 404
3iller +etals
Can!e in 3 No $ --- ---
Can!e in % No $ --- ---
Can!e in #ia --- --- $
Can!e in #ia mm --- $ ---
Can!e in %WS (lassifi(ation --- $ ---
Can!e in t 5ualifie& $ --- ---
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PRO/ED,RE 0,ALI1I/ATION " 0W"654S-AW VARIABLE
Group of
Variables Brief Of Variables Essential
Supplementar
y Essential
Non-
Essential
QW 406
,ositions
%&&ition of ,osition --- --- $
Can!e in ,osition --- $ ---
QW 40
,reeat
#e(rease67C $ --- ---
/n(rease67C /, --- $ ---
QW 408,W9
%&&ition ' #eletion of ,W9 $ --- ---
Can!e in ime : emp; Qualifie& --- $ ---
QW 40