TASK 72-32-51-300-018 LP Rotor Center Shaft - Repair By Plasma Spraying The Snap Diameter, Repair-018 (VRS1942)

DMC:V2500-A0-72-32-5101-02A-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 72-32-51-300-018 LP Rotor Center Shaft - Repair By Plasma Spraying The Snap Diameter, Repair-018 (VRS1942)

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
Abrasive blasting facilityLOCALAbrasive blasting facility
LatheLOCALLathe
Fluorescent Penetrant Inspection EquipmentLOCALFluorescent Penetrant Inspection Equipment
Pressure Shotpeen SystemLOCALPressure Shotpeen System
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 72-32-51-325-056 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 to between 9.8207 in (249.446 mm) and 9.8095 in. (249.160 mm) to remove the worn area. Break any sharp edges.

      1. NOTE

        Machining data is given for guidance only.

        Machining data

        Machine speed

        65.62 ft (20 m) per minute

        Rate of feed

        0.100 in. (2.54 mm) per revolution

        NOTE

        Hold the diameter to the minimum, to allow for subsequent repairs.
        Any previous coating and damage must be removed.
        If any worn area (scores, etc.) still exists, at the diameter 9.8207 in. (249.446 mm), reject the rotor center shaft.

    2. SUBTASK 72-32-51-220-147 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 72-32-51-230-065 Examine the Rotor Center Shaft for Cracks

      1. Do a crack test.

        1. No cracks permitted.

    4. SUBTASK 72-32-51-380-061 Shot Peen the Snap Diameter

    1. Refer to Figure.

      2. Apply the masking tape.

        1. Apply the masking tape to the area which is not to be shot peened.

      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 72-32-51-120-057 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.

    6. SUBTASK 72-32-51-340-057 Apply Plasma Spray on the Snap Diameter

    1. Refer to Figure.

      2. Touch up masking if necessary.

      3. Apply plasma spray. Minimum diameter of 9.794in. (248.75 mm) is required after plasma spraying.

    7. SUBTASK 72-32-51-324-063 Machine the Snap Diameter

    1. Refer to Figure.

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

      3. NOTE

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

        Machine the plasma sprayed snap diameter to between 9.8049 in. (249.046 mm) and 9.8032 in. (249.000 mm).

      1. Use a lathe.

        NOTE

        Machining data is given for guidance only.

        Machining data

        Machine speed

        65.62 ft (20 m) per minute

        Rate of feed

        0.100 in. (2.54 mm) per revolution

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

    8. SUBTASK 72-32-51-220-148 Examine the Rotor Center Shaft

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

      1. Use a magnification glass.

    9. SUBTASK 72-32-51-350-072 Identify the Repair

    1. Refer to Figure.

      2. Make a beehive symbol mark with the letters PS inside the beehive and mark VRS1942 adjacent to the part number as shown.

        1. Make a permanent mark as 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:Abrasive blasting facility
Tool Name:Abrasive blasting facility
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