TASK 72-32-81-300-007 LPC Stage 1.5 - 2.5 Drum Disk - Repair The Snap Diameter By Plasma Spray , Repair-007 (VRS1872)

DMC:V2500-A0-72-32-8100-01A-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 72-32-81-300-007 LPC Stage 1.5 - 2.5 Drum Disk - Repair The Snap Diameter By Plasma Spray , Repair-007 (VRS1872)

Effectivity

FIG/ITEM

PART NO.

02-200

5R0159

Material of component

RR

DESCRIPTION

SYMBOL

MATERIAL

Disc

-

Titanium alloy

General

Price and avialability

Refer to IAE for any of these items.

Tools

Repair parts

Repair of spares

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

This Repair scheme gives the procedure for plasma spraying the snap diameter of the disc.

The use of clean gloves is necessary to prevent contamination, by prespiration or by salts.

NOTE

Equivalent equipment may be used.

NOTE

To identify the consumable materials refer to the PCI.

NOTE

Special tools are identified in the procedure by the tool primary number.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
LatheLOCALLathe
Abrasive blasting facilityLOCALAbrasive blasting facility
Fluorescent Penetrant Inspection EquipmentLOCALFluorescent penetrant inspection equipment
Plasma spray equipmentLOCALPlasma spray equipment
Shot peening equipmentLOCALShot peening equipment
Magnifying glassLOCALMagnifying glass
Vibration peenLOCALVibration peen
IAE 3J1370 Fixture, machining0AM53IAE 3J1370

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 72-32-81-320-054 Machine the Worn Snap Diameter

    1. Refer to Figure and Figure.

      2. Locate the disc on a lathe and set the disc to run true. Secure the disc.

      1. Use IAE 3J1370 Fixture, machining 1 off and lathe.

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

    4. CAUTION

      TITANIUM COMPONENTS.
      SILICONE CARBIDE TYPE WHEELS, STONES AND ABRASIVE PAPERS ARE TO BE USED FOR THIS REPAIR.
      ALUMINIUM OXIDE TYPES MUST NOT BE USED.
      THE MATERIAL WILL OXIDIZE AND CRACK IF MECHANICAL CUTTERS ARE USED HEAVILY. THIS HAS OCCURED IF THE COMPONENT SHOWS DARK STRAW TO BLUE DISCOLOURATION. IF AT ANY TIME THIS COLORATION OCCURS THE DISC MUST BE REJECTED.

      NOTE

      Hold the diameter to a minimum, to allow for subsequent repairs. Any previous coating and damage must be removed. If any worn area, reject the disc.

      Machine the snap diameter between 11.882 in. (300.3 mm) and 11.812 in. (300.0 mm) to remove the worn area.

      Table 3. Machine Data

      Machine speed: .. ..

      65.62 ft. (20 m) per minute

      Ratchet feed: .. ..

      0.0039 in. (0.1 mm) per revolution

      NOTE

      Machining data is for guidance only.

    5. Break any sharp edges.

    2. SUBTASK 72-32-81-220-077 Inspect the Disc

    1. Refer to Figure.

      2. Do a visual inspection of the machined area.

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

    3. Dimensionally inspect the snap diameter.

    3. SUBTASK 72-32-81-230-061 Examine the Disc for Cracks

      1. Do a crack test.

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

        1. No cracks are permitted.

    4. SUBTASK 72-32-81-380-052 Shot-Peen the Snap Diameter

    1. Refer to Figure.

      2. Apply the adhesive tape.

      1. Apply the adhesive tape to the areas which are not to be given shot-peen treatment. Use CoMat 02-003 ADHESIVE TAPE BLACK WATERPROOF.

      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. Use CoMat 05-031 CAST STEEL SHOT DELETED. Complete coverage is required.

    5. SUBTASK 72-32-81-120-052 Abrasive Blast the Disc

    1. Refer to Figure and Figure.

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

    6. SUBTASK 72-32-81-340-052 Apply Plasma Spray to the Snap Diameter

    1. Refer to Figure.

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

      3. Apply the plasma spray. A minimum diameter of 11.799 in. (299.7 mm) is required after plasma spraying.

    7. SUBTASK 72-32-81-320-055 Machine the Snap Diameter

    1. Refer to Figure.

    2. NOTE

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

      Dimensionally inspect the snap diameter, after the plasma spraying.

      3. Machine the plasma sprayed snap diameter to between 11.8032 in. (299.800 mm) and 11.8051 in. (299.852 mm).

      1. Use IAE 3J1370 Fixture, machining 1 off and lathe.

        Table 4. Machine Data

        Machine speed: .. ..

        65.62 ft. (20 m) per minute

        Ratchet feed: .. ..

        0.0039 in. (0.1 mm) per revolution

        NOTE

        Machining data is 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 72-32-81-220-078 Examine the Disc

      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 magnifying glass.

    9. SUBTASK 72-32-81-350-062 Identify the Repair

    1. Refer to Figure.

      2. Make a beehive symbol mark, with the letters PS inside the beehive, and mark VRS1872 on the top surface of the dovetail.

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

    10. Figure: LPC Disc

    LPC Disc

    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

    Figure: LPC Disc

    LPC Disc

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
Manufacturer Code:LOCAL
Tool Number:Fluorescent penetrant inspection equipment
Tool Name:Fluorescent Penetrant Inspection Equipment
Manufacturer Code:0AM53
Tool Number:IAE 3J1370
Tool Name:IAE 3J1370 Fixture, machining
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:Shot peening equipment
Tool Name:Shot peening equipment
Manufacturer Code:LOCAL
Tool Number:Vibration peen
Tool Name:Vibration peen