RADIOGRAPHY , TOFD , PHASED ARRAY

7
ALBERTO MENCARELLI BLOCCO 19.5 mm Non Destructive Inspection Pag. 1 a 7 On the left side of radiography one indication is missing because of the orientation of indication, but clear in TOFD scan, at 160mm a suface indication only 1 mm deep is lost because of TOFD surface dead zone.

Transcript of RADIOGRAPHY , TOFD , PHASED ARRAY

ALBERTO MENCARELLI BLOCCO 19.5 mm Non Destructive Inspection

Pag. 1 a 7

On the left side of radiography one indication is missing because of the orientation of indication, but clear

in TOFD scan, at 160mm a suface indication only 1 mm deep is lost because of TOFD surface dead zone.

ALBERTO MENCARELLI BLOCCO 19.5 mm Non Destructive Inspection

Pag. 2 a 7

This set up can help to use a short range of focus, and avoid generating a false indication when the beam

catch root penetration or bottom cap in x preparation.

BeamTool Scan Plan

Inspection Layout

Piece

Thickness Width Length Index Offset Material Shear

Velocity Compression

Velocity

19.5mm 180mm 250mm 0mm Steel 1020 3.24mm/µs 5.89mm/µs

HAZ: 51.94% HAZ Width: 10mm

ALBERTO MENCARELLI BLOCCO 19.5 mm Non Destructive Inspection

Pag. 3 a 7

ALBERTO MENCARELLI BLOCCO 19.5 mm Non Destructive Inspection

Pag. 4 a 7

Weld

Region Angl

e Height Gap

Upper Fill 25° 15.38m

m

Hot Pass - V-Type

25° 3.12mm

Root 1mm 2mm

Phased Array Probe: PA SX 0

Index Offset: -20mm Scan Offset: 0mm Mirrored: False

Wedge: SPWZ3-N55S-IHC

Velocity Primary Offset Height 1st

Element Length Width Angle

2.33mm/µs 60.41mm 14.32mm 66.48mm 40mm 36o

Transducer: 5L32-PWZ3

Total Aperture: 32mm Number of Elements: 32 Element Pitch: 1mm

Sectorial Beamset 4 Beamset

Law Config.: Sectorial Wave Type: Shear

Element Qty

First Element

Min Angle

Max Angle

Angle Steps

Focus

16 1 60o 70

o 0.71

o None

ALBERTO MENCARELLI BLOCCO 19.5 mm Non Destructive Inspection

Pag. 5 a 7

Sectorial Beamset 6 Beamset

Law Config.: Sectorial Wave Type: Shear

Element

Qty

First Elemen

t

Min Angl

e

Max Angl

e

Angle

Steps Focus

16 17 52o 69

o 0.89

o

HalfPath: 65.00mm

TOFD Probe: TOFD 60° 132

Crossover Depth PCS Index Offset Scan Offset Elevation Refracted Angle

13mm 45.03mm 0mm 86mm 0mm 60o

Wedge:

Length Width Exit Point

20.95mm 20mm 8.4mm

Transducer:

Shape Diameter Frequency Length Width

Round 6mm 5Mhz 10mm 10mm

Document Date: Monday, May 30, 2016

ALBERTO MENCARELLI BLOCCO 19.5 mm Non Destructive Inspection

Pag. 6 a 7

The following scan show root indication clearly in both TOFD and PA

The following scan show toe indication clearly only in PA but undetectable by TOFD because the lateral

wave dead zone

ALBERTO MENCARELLI BLOCCO 19.5 mm Non Destructive Inspection

Pag. 7 a 7

The following scan show subsurface indication clearly in both TOFD and PA but with better response on

TOFD because are not conditioned by orientation of indication.

I hope this presentation can clear the Client how much it is important reduce radiography test and

improve advance ultrasonic test, immediate responses, less cost and more safety is the goal of ultrasound.

Do not hesitate to ask information about Your specific requirement.

Thanks Alberto Mencarelli [email protected]