24C- practical Pactical Macro inspection 2006.ppt

Practical macro

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CSWIP 3.1 Welding InspectionCSWIP 3.1 Welding Inspection
TWI Training & Examination TWI Training & Examination
ServicesServices
Practical Macro InspectionPractical Macro Inspection
Course Reference WIS 5Course Reference WIS 5
Course notes section reference 23

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Macro InspectionMacro Inspection

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Remember in the CSWIP 3.1 Welding Inspectors Remember in the CSWIP 3.1 Welding Inspectors
examination your are required to conduct a visual examination your are required to conduct a visual
examination of two macro samplesexamination of two macro samples
 Time allowed 45 minutesTime allowed 45 minutes
 Code ISO 5817 Level stringent BCode ISO 5817 Level stringent B
Macro Inspection ExaminationMacro Inspection Examination

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PLEASE READ CAREFULLYPLEASE READ CAREFULLY
You have been provided with one or two macro samples and the report You have been provided with one or two macro samples and the report
sheets you are required to complete the followingsheets you are required to complete the following
1. Ensure that you record your name and the date on the report sheet1. Ensure that you record your name and the date on the report sheet
2. Ensure that you sign the report sheet2. Ensure that you sign the report sheet
3. Visually inspect the specimens and report:3. Visually inspect the specimens and report:
The defects typeThe defects type
The defects size, length, depth and height if applicableThe defects size, length, depth and height if applicable
4.4.Comment on each defect e.g accept, reject or refer inComment on each defect e.g accept, reject or refer inaccordance accordance
withwith
ISO 5817 stringent BISO 5817 stringent BALL LINE DRAWING & WRITING MUST BE COMPLETED IN INKALL LINE DRAWING & WRITING MUST BE COMPLETED IN INK
ALL MEASUREMENT IN MM / ALL MEASUREMENT IN MM / PHOTOGRAPH AT 10X MAGNIFICATION.PHOTOGRAPH AT 10X MAGNIFICATION.
DIVDE ALL MEASUREMENTS BY 10 AND RECORD ON REPORT DIVDE ALL MEASUREMENTS BY 10 AND RECORD ON REPORT
PROVIDEDPROVIDED
NO LIQUID PAPER OR CORRECTION FLUID PERMITTED. CORRECTIONS NO LIQUID PAPER OR CORRECTION FLUID PERMITTED. CORRECTIONS
MUST BE CROSSED OUT AND THE CORRECTION MADEMUST BE CROSSED OUT AND THE CORRECTION MADE
TIME ALLOWED FOR TWO MARCS 45 MINUTESTIME ALLOWED FOR TWO MARCS 45 MINUTES
Macro InspectionMacro Inspection

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Macro Report ExampleMacro Report Example
Check Macro photograph identification matches form supplied. Check Macro photograph identification matches form supplied.
All measurements in mm / All measurements in mm / Macro Photograph at X10 MagnificationMacro Photograph at X10 Magnification
Macro Photograph at X10Macro Photograph at X10

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11
3344
55
DEFECTDEFECT SIZESIZE ACCEPT/REJECTACCEPT/REJECT
11Lack of sidewall fusion + SlagLack of sidewall fusion + Slag 3 x 4 mm3 x 4 mmRejectReject
RejectReject
AcceptAccept
AcceptAccept
22
33
44
55
66
77
88
1010
1111
1212
Lack of sidewall fusionLack of sidewall fusion
Slag inclusionSlag inclusion
Cap undercutCap undercut
3 mm3 mm
1.5 mm1.5 mm
0.5 mm0.5 mm
Plate laminationPlate lamination 5.2 mm5.2 mm Refer*Refer*
Excess weld metalExcess weld metal
Excess root penetrationExcess root penetration
4 mm4 mm
NoneNone AcceptAccept
RejectReject
•These Macros have been mastered from the These Macros have been mastered from the
Photographs Photographs
•All line drawings & writing must be in ink.All line drawings & writing must be in ink.
•Record defects as you see themRecord defects as you see them
•Interpretation difficulties have been recorded.Interpretation difficulties have been recorded.
•Comment only if a definite uncertainty exists: Comment only if a definite uncertainty exists:
i.e Slag/Gas in some cases.i.e Slag/Gas in some cases.
COMMENTS:COMMENTS:
*Materials defect *Materials defect
acceptance acceptance
dependent on dependent on
application. application.
Seek advice.Seek advice.
Macro Report ExampleMacro Report Example
22

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Page 6
ISO 5817 : 1992
ISO 5817 (BS EN 225817)ISO 5817 (BS EN 225817)

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Acceptance levels B,C,DAcceptance levels B,C,D
For the CSWIP 3.1 exam For the CSWIP 3.1 exam
stringent Bstringent B
Maximum pore diameter 3mm orMaximum pore diameter 3mm or
pore diameter shall be less than or equal to 0.3 pore diameter shall be less than or equal to 0.3
X plate thicknessX plate thickness
Copyrigt © 2006 TWI LtdCopyrigt © 2006 TWI Ltd
ISO 5817 (BS EN 225817)ISO 5817 (BS EN 225817)

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Specimen Thickness(mm)Specimen Thickness(mm)
88151530306060DefectDefect
OverlapOverlap
Incomplete penetrationIncomplete penetration
Lack of sidewall fusionLack of sidewall fusion
Gas poreGas pore
Slag inclusionSlag inclusion
Elongated cavityElongated cavity
Linear misalignmentLinear misalignment
Cap undercutCap undercut
CrackCrack
SpatterSpatter
DimensionsDimensions
H = 1.5H = 1.5
L = 2.0L = 2.0
L = 2.0L = 2.0
D = 2.5D = 2.5
1.0 x 2.01.0 x 2.0
0.5 x 1.50.5 x 1.5
H = 1.8H = 1.8
D = 0.4D = 0.4
L = 1.5L = 1.5
D = 1.8D = 1.8
RRRRRRRR
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RRRRRRRR
XXXXXXXX
• Using ISO 5817 determine the acceptability of the defects listed. Using ISO 5817 determine the acceptability of the defects listed.
Under the column Under the column headed specimen thickness, insert A,R and Xheaded specimen thickness, insert A,R and X
AA = Accept= Accept
RR = Reject = Reject
XX = Refer = Refer
• Use the acceptance category Use the acceptance category stringent B stringent B when making your when making your
assessment assume assessment assume specimens to be plate butt weldsspecimens to be plate butt welds
ISO 5817 ExerciseISO 5817 Exercise

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Macro defectsMacro defects
3mm3mm
50mm50mm

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Macro defectsMacro defects
1.5mm1.5mm

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Macro defectsMacro defects

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Macro defectsMacro defects

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Macro defectsMacro defects

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Macro defectsMacro defects

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Macro defectsMacro defects

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Macro defectsMacro defects

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Macro defectsMacro defects

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Macro defectsMacro defects

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Macro defectsMacro defects

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Macro defectsMacro defects

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Macro defectsMacro defects

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Macro defectsMacro defects

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Macro defectsMacro defects

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Macro defectsMacro defects

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Macro defectsMacro defects

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What is going on here?What is going on here?

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Macro defectsMacro defects

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Macro defectsMacro defects

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MACROMACRO

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MACROMACRO
NOTE: PHOTOGRAPH IS AT X10 MAGNIFICATION
MATERIAL: LOW CARBON STEEL WELDING PROCESS: [MAG/GMAW]
## DEFECTDEFECT SIZESIZE ACCEPT/REJECTACCEPT/REJECT
11   POOR TOE BLENDPOOR TOE BLEND      
22 OVERLAP + 2 SMALL PORESOVERLAP + 2 SMALL PORES      
33 LAMINATIONS/INCLUSIONS LAMINATIONS/INCLUSIONS       
44   LACK OF SIDE WALL FUSIONLACK OF SIDE WALL FUSION      
55 AS ABOVE +PORESAS ABOVE +PORES      
66 OVERLAPOVERLAP      
77 LACK OF INTERRUN FUSION LACK OF INTERRUN FUSION    
88   GAS PORE/PIPE GAS PORE/PIPE       
99   LACK OF SIDE WALL FUSION + SILICALACK OF SIDE WALL FUSION + SILICA      
1010   ANGULAR MISALIGNMENTANGULAR MISALIGNMENT      
1111 EXCESS WELD METALEXCESS WELD METAL

     
1212 EXCESS PENETRATIONEXCESS PENETRATION      
AssessAssess
ToTo
SpecificationSpecification
2
6
9
8
3
4
1
7
5

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Any QuestionsAny Questions
??