Practical Plate Inspection

7/31/2019 Practical Plate Inspection

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Copyright 2005, TWI Ltd World Centre for Materials Joining Technology

PRACTICAL PLATE.

SECTION 22SECTION 26


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Undercut1.5 max

236

Gas pore> 1.5

230

Lack ofsidewall fusion

87

241

153

Excessive weld metal

Height 4mm

51

Slag

inclusion

Excess weld metal height : 4mm.Toe Blend: PoorWeld width: 12-14mmMisalignment: 2mm

Angular Distortion 3mm in 50mmSpatter along weld length

C

30

Arc Strike

40

22

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Page 1 of 3 EXAMPLE PLATE REPORTName: [Block capitals] Mr. I C Plenty Signature: I C Plenty Test piece ident: 001

Code/Specification used: TWI 09-09-03 Welding process: MMA/SMAW Joint type: Single V Butt

Welding position: Flat /PA Length & thickness of plate: 300mm x 10 mm Date 22/08/2003

MEASU

R

E

F

ROM

TH

IS

DATU

M

ED

GE

WELD FACE

BA

NOTES:3015


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Lack of rootFusion

247

Root concavity2 deep

23

128

Incomplete root

penetration

Excess penetration height : 4mm.Toe Blend: PoorExcess penetration width: 3-4mmLinear Misalignment: 2mm

Angular Distortion: 3mm in 50mm

C

20

50

10

Page 2 of 3 EXAMPLE PLATE REPORT

MEASU

R

E

F

ROM

TH

IS

DATU

M

ED

GE

WELD ROOT

BA

NOTES:


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1) Use a pencil for the arrow lines, but make all

written comments and measurements in inkonly

3) Do not forget tocompare and sentenceyourreport

2) Report everythingthat you can observe

4) Do not forget todate & signyour report

5) Make any observations, such asrecommendations for further investigation forcrack-like imperfections.

Plate Inspection Points


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REMEMBER!

TERMINOLOGY:Use standard terms.Do not use abbreviations.

ACCURACY:All dimensions in millimetres.No need to scale.Measurements to be as accurate as possible.

PRESENTATION:

Sketch to be as neat as possible.The key to passing the examination.


7/8Copyright 2005, TWI Ltd World Centre for Materials Joining Technology

I C Plenty

001

EXAMPLE WELD INSPECTION REPORT/SENTENCE SHEET

SPECIMEN NUMBER

EXTERNAL DEFECTS Defects Noted Code or Specification Reference

Defect Type AccumulativeTotal

1

MaximumAllowanc

e2

Section/Table No

3

Accept/Reject

4

Excess weld metal height 15

Excess weld metal appearance Poor blend Smooth 8 Reject

Incomplete filling 22mm None 5 Reject

Inadequate weld width (PIPE) N/A ------------

---------- Accept

Slag Inclusions

70mm long 50mm 9 Reject

Undercut 1.5mm depth 1mm 6 Reject

Surface Porosity 1.5mm 1mm 2 Reject

Cracks/Crack-like defects 40mm NONE 1 Reject*

PRINT FULL NAME

25mm x 4mm 2mm Reject15

Arc strike 3 x 25mm None 12 Reject


8/8Copyright 2005, TWI Ltd World Centre for Materials Joining Technology

Signature......................................................... Date.....................................................................................*Delete which is not applicable. Use the other side for any comments.

This *pipe/plate has been examined to the requirements of code/specification .........................................and is accepted/rejected accordingly.

TWI-I

22nd August 2003I C Plenty

Accept----------------------NONELaps/Laminations

Accept2------------NONEPorosity

Accept9------------NONESlag inclusions

Accept----------------------NONECracks/Crack-like defects

Accept----------------------NONERoot Undercut

Reject101mm2mm depthRoot Concavity

Reject11NONE20mmLack of Root Fusion

Reject13NONE50mmIncomplete Root Penetration

Reject152mm4mmExcessive Root Penetration

Accept92mm2mmMisalignment

ROOT DEFECTS

Comments: NotBurn through 10mm referenced N/A ReferSpatter should have been removed before inspection. Seek advice

Practical Plate Inspection

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