TASK 72-31-13-300-007 LPC Blade Front Retaining Ring - Repair The Blade Abutment Face By Plasma Spray, Repair-007 (VRS1136)

DMC:V2500-A0-72-31-1300-00A-609A-C|Issue No:001.00|Issue Date:2017-08-01

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 72-31-13-300-007 LPC Blade Front Retaining Ring - Repair The Blade Abutment Face By Plasma Spray, Repair-007 (VRS1136)

Effectivity

FIG/ITEM

PART NO.

01-160

5A0898

01-160

5A6079

Material of Component

PART IDENT

IAE SYMBOL

MATERIAL

Front Blade Retaining Ring

Titanium Alloy

General

This repair scheme gives the plasma spray procedure for blade abutment face of LPC Blade Front Retaining Ring.

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

Price and availability - none

NOTE

To identify the consumable materials, refer to the PCI.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Standard workshop equipmentLOCALStandard workshop equipment
Portablegrinding equipmentLOCALPortable grinding equipment
Abrasive wheelLOCALAbrasive wheel
Magnifying Glass, 10xLOCALMagnifying Glass, 10x
Abrasive blast equipmentLOCALAbrasive blast equipment
Plasma spray equipmentLOCALPlasma spray equipment
Vibro-engraving equipmentLOCALVibro-engraving equipment
Chemical cleaning equipmentLOCALChemical cleaning equipment

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 03-248 METAL SPRAY POWDERLOCALCoMat 03-248
CoMat 05-019 WATERPROOF SILICON CARBIDELOCALCoMat 05-019
CoMat 05-020 WATERPROOF SILICON CARBIDELOCALCoMat 05-020
CoMat 05-021 WATERPROOF SILICON CARBIDE44197CoMat 05-021
CoMat 06-022 FLUORESCENT PENETRANT (POST-EMULSIFIED ULTRA HIGH SENSITIVITY)LOCALCoMat 06-022

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-31-13-350-056 Blend to Remove the Damage of the Blade Abutment Face

    1. Refer to Figure.

      2. CAUTION

        TITANIUM COMPONENT - YOU MUST USE SILICON CARBIDE TYPE ABRASIVE WHEELS, STONES AND PAPERS TO DRESS, BLEND AND POLISH THIS COMPONENT. ALUMINIUM OXIDE TYPE MUST NOT BE USED. IF MECHANICAL CUTTERS ARE USED, ONLY LIGHT CUTS MUST BE MADE TO AVOID OVERHEATING THE MATERIAL.

        CAUTION

        TITANIUM COMPONENT - AVOID BUILD UP OF HEAT BY APPLYING ONLY GENTLE PRESSURE AND KEEPING THE TOOL SPEED AS LOW AS POSSIBLE. USE TECHNIQUES WHICH ALLOW FOR PROGRESSIVE WEAR OF THE DRESSING MEDIA TO PRESENT A CONTINUALLY FRESH CUTTING SURFACE TO THE WORK PIECE.

        CAUTION

        DO NOT DWELL ON ONE AREA OF THE COMPONENT.

        CAUTION

        DRESS, WHERE POSSIBLE IN A CIRCULAR MOTION; TAKING LIGHT CUTS TO AVOID OVERHEATING.

        CAUTION

        TITANIUM COMPONENT - YOU MUST MAKE SURE THAT WHEN YOU REMOVE MATERIAL, BLEND AND POLISH, TO MAKE SMOOTH, THAT NO SPARKS ARE PRODUCED AND THE ADJACENT AREA IS MASKED OFF.

        Blend to remove the damage from the blade abutment face.

      2. The circumferential length of the blended area is to be 50 times the depth.

      3. Refer to SPM TASK 70-35-03-300-501.

      3. Polish the blended area.

      1. Surface finish must be the same as the adjacent area.

      2. Refer to SPM TASK 70-35-03-300-501.

    2. SUBTASK 72-31-13-220-103 Examine the Blade Abutment Face

    1. Refer to Figure.

      2. Visually examine the blended area.

      2. Make sure that there are no nicks, scratches, dents, scores and galls in the blended area.

    3. Measure and record the dimensions of the blended area.

    3. SUBTASK 72-31-13-110-057 Do a Swab Etch

      1. Chemically clean.

      2. Refer to SPM TASK 70-11-08-300-503, SUBTASK 70-11-08-300-001.

      2. Swab etch the blended area.

      2. Refer to SPM TASK 70-11-08-300-503, SUBTASK 70-11-08-300-002.

    4. SUBTASK 72-31-13-230-061 Examine the Blended Blade Abutment Face for Cracks

      1. Examine the blended area for cracks.

      1. Refer to SPM TASK 70-23-05-230-501.

      3. No cracks are permitted.

    5. SUBTASK 72-31-13-340-001 Plasma Spray the Blade Abutment Face

    1. Refer to Figure and Figure.

      2. Clean the repair area.

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

      3. Apply masking tape to areas which are not to be given plasma spray.

      1. Refer to SPM TASK 70-34-01-340-501 and TASK 70-34-18-380-501SPM TASK 70-34-18-380-501.

      4. Grit blast the blade abutment face.

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

      5. Renew masking tape to areas which are not to be given plasma spray, if necessary.

      1. Refer to SPM TASK 70-34-01-340-501 and TASK 70-34-18-380-501 SPM TASK 70-34-18-380-501.

      6. Plasma spray the blade abutment face.

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

      3. Apply the plasma spray coating a sufficient thickness which will be permitted the final machining.

      7. Remove masking tape and any over spray coat.

      1. Use non-metallic hand scraper.

    6. SUBTASK 72-31-13-320-002 Machine the Blade Abutment Face after Plasma Spray

    1. Refer to Figure and Figure.

      2. Set up and machine the blade abutment face and Diameter C to the dimensions given in the figure.

      1. The minimum plasma spray coating thickness in the deepest part of each plasma sprayed area is 0.004 in. (0.10 mm).

    7. SUBTASK 72-31-13-220-104 Examine the Repaired Area

    1. Refer to Figure and Figure.

      2. Visually examine the repaired area.

      1. Make sure that there are no chips, cracks, lifted materials and the coating that is not attached to base material in the repaired area.

      3. Refer to SPM TASK 70-34-01-340-501.

    3. Dimensionally examine the repaired area.

    8. SUBTASK 72-31-13-350-057 Identify the Repair

      1. Mark VRS1136 adjacent to the part number.

      1. Use vibro-engraving equipment.

      2. Refer to SPM TASK 70-09-00-400-501.

    9. Figure: Repair Details and Dimensions

    Repair Details and Dimensions

    Figure: Repair Details and Dimensions

    Repair Details and Dimensions

    Figure: Repair Details and Dimensions

    Repair Details and Dimensions

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Added new repair procedure for VRS1136. (12VJ801)

Manufacturer Code:44197
Enterprise Name:SAINT-GOBAIN INDUSTRIAL CERAMICS INC.
BU Name:SAINT-GOBAIN ABRASIVES, INC
Street:ONE NEW BOND STREET
P.O. Box:PO BOX 15008
City:WORCESTER
State:MA
Zip Code:01615-0008
Country:USA
Phone Number:1-508-795-5000
Fax Number:1-508-795-2828
Internet:www.saint-gobain-northamerica.com
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:LOCAL
Supply Number:CoMat 03-248
Type:sp01
Supply Short Name:CoMat 03-248 METAL SPRAY POWDER
Supply Name:CoMat 03-248 METAL SPRAY POWDER
Specification Groups:
Doc NumberType
MSRR9507/35METCO 447 NS
OMAT:3/179MIL-P-85856/27
Suppliers:
ManufacturerRemarks
LOCAL
39918
K1030
K6835
IE103
IE195
IE200
Manufacturer Code:1E1X8
Supply Number:CoMat 05-019
Type:sp01
Supply Short Name:CoMat 05-019 WATERPROOF SILICON CARBIDE
Supply Name:CoMat 05-019 WATERPROOF SILICON CARBIDE
Specification Groups:
Doc NumberType
OMAT: 5/31 (RR REF)WATERPROOF SILICON CARBIDE ABRASIVE PAPER, CAMI GRIT DESIGNATION 400 (ANSI B74.18)
JCR-184 (JAEC REF)
Suppliers:
ManufacturerRemarks
1E1X8
LOCAL
K6835
Manufacturer Code:1E1X8
Supply Number:CoMat 05-020
Type:sp01
Supply Short Name:CoMat 05-020 WATERPROOF SILICON CARBIDE
Supply Name:CoMat 05-020 WATERPROOF SILICON CARBIDE
Specification Groups:
Doc NumberType
OMAT: 5/33 (RR REF)WATERPROOF SILICON CARBIDE ABRASIVE PAPER, CAMI GRIT DESIGNATION 320 (ANSI B74.18)
JCR-027 (JAEC REF)
JCR-186 (JAEC REF)
Suppliers:
ManufacturerRemarks
1E1X8
LOCAL
K6835
Manufacturer Code:1E1X8
Supply Number:CoMat 05-021
Type:sp01
Supply Short Name:CoMat 05-021 WATERPROOF SILICON CARBIDE
Supply Name:CoMat 05-021 WATERPROOF SILICON CARBIDE
Specification Groups:
Doc NumberType
OMAT: 5/35 (RR REF)WATERPROOF SILICON CARBIDE ABRASIVE PAPER, CAMI GRIT DESIGNATION 240 (ANSI B74.18 )
JCR-188 (JAEC REF)
Suppliers:
ManufacturerRemarks
1E1X8
K6835
LOCAL
Manufacturer Code:X222X
Supply Number:CoMat 06-022
Type:sp01
Supply Short Name:CoMat 06-022 FLUORESCENT PENETRANT (POST-EMULSIFIED ULTRA HIGH SENSITIVITY)
Supply Name:CoMat 06-022 FLUORESCENT PENETRANT (POST-EMULSIFIED ULTRA HIGH SENSITIVITY)
Specification Groups:
Doc NumberType
ARDROX 985-P14 OMAT: 652 (CHEMETALL OAKITE 985-P14)It is not permitted to mix the selected CoMat 06‐022 letter suffix material with other CoMat 06‐022 letter suffix materials. Where CoMat 06‐022 is specified with no suffix, use one of the CoMat 06‐ 022 letter suffix materials.
Suppliers:
ManufacturerRemarks
X222X
Link not Found
Manufacturer Code:LOCAL
Tool Number:Abrasive wheel
Tool Name:Abrasive wheel
Manufacturer Code:LOCAL
Tool Number:Chemical cleaning equipment
Tool Name:Chemical cleaning equipment
Manufacturer Code:LOCAL
Tool Number:Magnifying Glass, 10x
Tool Name:Magnifying Glass, 10x
Manufacturer Code:LOCAL
Tool Number:Plasma spray equipment
Tool Name:Plasma spray equipment
Manufacturer Code:LOCAL
Tool Number:Portable grinding equipment
Tool Name:Portablegrinding equipment
Link not Found
Manufacturer Code:LOCAL
Tool Number:Vibro-engraving equipment
Tool Name:Vibro-engraving equipment