TASK 72-32-51-300-020 LP Rotor Center Shaft - Repair By Plasma Spraying The Snap Diameter, Repair-020 (VRS1943)

DMC:V2500-A0-72-32-5101-04A-609A-C|Issue No:002.00|Issue Date:2015-08-01

Export Control

EAR Export Classification: Not subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3), except for the following Service Bulletins which are currently published as EAR Export Classification 9E991: SBE70-0992, SBE72-0483, SBE72-0580, SBE72-0588, SBE72-0640, SBE73-0209, SBE80-0024 and SBE80-0025.

Copyright

© IAE International Aero Engines AG (2001, 2014 - 2021) The information contained in this document is the property of © IAE International Aero Engines AG and may not be copied or used for any purpose other than that for which it is supplied without the express written authority of © IAE International Aero Engines AG. (This does not preclude use by engine and aircraft operators for normal instructional, maintenance or overhaul purposes.).

Applicability

All

Common Information

TASK 72-32-51-300-020 LP Rotor Center Shaft - Repair By Plasma Spraying The Snap Diameter, Repair-020 (VRS1943)

Effectivity

FIG/ITEM

PART NO.

01-100

5R7016

Material of component

RR

DESCRIPTION

SYMBOL

MATERIAL

Rotor center shaft

Titanium alloy

General

Price and availability

Refer to IAE for any of the following:

Tools

Engine parts

Repair of spares

The practices and processes referred to in the procedure by the TASK numbers are in the SPM.

This Repair scheme gives the procedure for plasma spraying the snap diameter of the rotor center shaft.

The use of clean gloves is necessary to carefully prevent contamination by perspiration or by salts.

NOTE

Equivalent equipment may be used.

NOTE

To identify the consumable materials refer to the PCI.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
LatheLOCALLathe
Pressure Shotpeen SystemLOCALPressure Shotpeen System
Fluorescent Penetrant Inspection EquipmentLOCALFluorescent Penetrant Inspection Equipment
Blasting equipmentLOCALBlasting equipment
Plasma spray equipmentLOCALPlasma spray equipment
Magnifying glassLOCALMagnifying glass

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 02-003 ADHESIVE TAPE BLACK WATERPROOFLOCALCoMat 02-003
CoMat 02-006 ADHESIVE TAPE ALUMINIUM FOILK0993CoMat 02-006
CoMat 03-038 METAL SPRAYING POWDER NICKEL ALUMINIUM (95/5)IE200CoMat 03-038
CoMat 05-031 CAST STEEL SHOT DELETED0AM53CoMat 05-031
CoMat 05-130 ABRASIVE DELETED0AM53CoMat 05-130

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-32-51-325-055 Machine the Worn Snap Diameter

    1. Refer to Figure and Figure.

      2. Locate the rotor center shaft on a lathe, set the rotor center shaft to run true. Secure the rotor center shaft.

      1. Use a lathe.

    3. Dimensionally inspect the snap diameter in order to determine material removal.

      4. Machine the snap diameter between 10.3837 in. (263.748 mm) and 10.3723 in. (263.456 mm) to remove the worn area. Break any sharp edges.

      1. See Machining Data.

        Machining Data

        Machine speed

        65.62 ft (20 m) per minute

        Rate of feed

        0.1 in. (2.54 mm)

        Machining data is given for guidance only.

        NOTE

        Hold the diameter to the maximum, to allow for subsequent repairs.
        Any previous coating and damage must be removed.
        If any worn area (scores, etc) exists at the diameter 10.3723in. (263.456 mm), reject the rotor center shaft.

    2. SUBTASK 72-32-51-220-145 Inspect the Rotor Center Shaft

    1. Refer to Figure.

      2. Do a visual inspection for the machined area.

      1. Refer to the SPM TASK 70-21-01-220-501.

    3. Dimensionally inspect the snap diameter.

    3. SUBTASK 72-32-51-230-064 Examine the Rotor Center Shaft for Cracks

      1. Do a crack test.

        1. Refer to the SPM TASK 70-23-03-230-501 or TASK 70-23-04-230-501 or TASK 70-23-08-230-501.

        1. No cracks permitted.

    4. SUBTASK 72-32-81-380-060 Shot Peen the Snap Diameter

    1. Refer to Figure.

      2. Apply the masking tape.

        1. Apply the masking tape to the areas which are not to be given shot peen treatment.

      3. Shot peen the snap diameter to an intensity of 6A.

        1. Do the procedure given in the SPM TASK 70-38-04-300-503.

        2. Complete coverage is required.

    5. SUBTASK 72-32-51-120-056 Abrasive Blast the Rotor Center Shaft

    1. Refer to Figure.

      2. Mask off areas that are not to be plasma sprayed.

      3. Abrasive blast the rotor center shaft surface to be plasma sprayed.

        1. Refer to the SPM TASK 70-34-01-340-501.

        2. Amount of dimensional change by blasting is negligible and does not affect subsequent procedure.

    6. SUBTASK 72-32-51-340-056 Apply Plasma Spray on the Snap Diameter

    1. Refer to Figure.

      2. Touch up masking if necessary.

      3. Apply plasma spray. Maximum diameter of 10.400 in. (264.16 mm) is required after plasma spraying.

    7. SUBTASK 72-32-51-324-062 Machine the Snap Diameter

    1. Refer to Figure.

    2. Dimensionally inspect the snap diameter after the plasma spraying.

      NOTE

      Make sure that subsequent machined profile shall be option 1 or option 2.

      3. Machine the plasma sprayed snap diameter between 10.3900in. (263.908 mm) and 10.3881in. (263.856 mm).

      1. Use a lathe.

        NOTE

        See Machining Data.

        Machining Data

        Machine speed

        65.62 ft (20 m) per minute

        Rate of feed

        0.1in. (2.54 mm) per revolution

        Machining data is given for guidance only.

    4. Dress to remove the metal spray step from the lead in chamfer, blend to form a uniform chamfer profile.

    8. SUBTASK 72-32-51-220-146 Examine the Rotor Center Shaft

      1. Visually examine the plasma sprayed area for chips, cracks, lifted material and coating that is not attached to parent material. Surfaces that show heat cracks are not permitted.

      1. Use a magnification glass.

    9. SUBTASK 72-32-51-350-071 Identify the Repair

    1. Refer to Figure.

      2. Make a beehive symbol mark with the letters PS inside the beehive and mark VRS1943 adjacent to the part number as shown.

        1. Make a permanent mark by the procedure given in the SPM TASK 70-09-00-400-501.

        1. Use electrolytic permanent mark.

    10. Figure: Rotor center shaft

    Rotor center shaft

    Figure: Before application of plasma spraying

    Before application of plasma spraying

    Figure: After application of plasma spraying

    After application of plasma spraying

    Figure: Final machining for the snap diameter

    Final machining for the snap diameter

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised note to remove "materials or". (PSAF 15VC314)

Manufacturer Code:0AM53
Enterprise Name:IAE INTERNATIONAL AERO ENGINES AG
BU Name:NULL
Building:SUITE 400
Street:628 HEBRON AVENUE
City:GLASTONBURY
State:CT
Zip Code:06033
Country:USA
Manufacturer Code:IE200
Enterprise Name:DELETED, REFER TO CAGE CODE 00BB6
Manufacturer Code:K0993
Enterprise Name:3M (UK) PLC
BU Name:3M (UK) PLC
Street:3M CENTRE, CAIN ROAD
City:BRACKNELL
Zip Code:RG12 8HT
Country:UNITED KINGDOM
Phone Number:44-161-236-8500
Fax Number:44-161-237-6136
Internet:www.mmm.co.uk
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:LOCAL
Supply Number:CoMat 02-003
Type:sp01
Supply Short Name:CoMat 02-003 ADHESIVE TAPE BLACK WATERPROOF
Supply Name:CoMat 02-003 ADHESIVE TAPE BLACK WATERPROOF
Specification Groups:
Doc NumberType
OMAT: 285ISATAPE 160
Suppliers:
ManufacturerRemarks
LOCAL
IE305
K6835
Manufacturer Code:K6835
Supply Number:CoMat 02-006
Type:sp01
Supply Short Name:CoMat 02-006 ADHESIVE TAPE ALUMINIUM FOIL
Supply Name:CoMat 02-006 ADHESIVE TAPE ALUMINIUM FOIL
Specification Groups:
Doc NumberType
OMAT: 298 (RR REF)SCOTCH 425
Suppliers:
ManufacturerRemarks
K6835
52152
76381
LOCAL
Manufacturer Code:00BB6
Supply Number:CoMat 03-038
Type:sp01
Supply Short Name:CoMat 03-038 METAL SPRAYING POWDER NICKEL ALUMINIUM (95/5)
Supply Name:CoMat 03-038 METAL SPRAYING POWDER NICKEL ALUMINIUM (95/5)
Specification Groups:
Doc NumberType
OMAT: 3/188 (RR REF)METCO 450NS
JCR-020 (JAEC REF)
Suppliers:
ManufacturerRemarks
00BB6
01FK3
0Y7E4
C1840
IE103
K0455
K6835
Manufacturer Code:0AM53
Supply Number:CoMat 05-031
Type:sp01
Supply Short Name:CoMat 05-031 CAST STEEL SHOT DELETED
Supply Name:CoMat 05-031 CAST STEEL SHOT DELETED
Specification Groups:
Doc NumberType
DELETED
Suppliers:
ManufacturerRemarks
0AM53
Manufacturer Code:X111X
Supply Number:CoMat 05-130
Type:sp01
Supply Short Name:CoMat 05-130 ABRASIVE DELETED
Supply Name:CoMat 05-130 ABRASIVE DELETED
Specification Groups:
Doc NumberType
DELETED
Suppliers:
ManufacturerRemarks
X111X
Manufacturer Code:LOCAL
Tool Number:Blasting equipment
Tool Name:Blasting equipment
Link not Found
Manufacturer Code:LOCAL
Tool Number:Lathe
Tool Name:Lathe
Link not Found
Manufacturer Code:LOCAL
Tool Number:Plasma spray equipment
Tool Name:Plasma spray equipment
Manufacturer Code:LOCAL
Tool Number:Pressure Shotpeen System
Tool Name:Pressure Shotpeen System