TASK 70-32-07-100-501 Procedure For The Mechanical Removal Or Finishing Of Thermal Spray Coatings

DMC:V2500-00-70-32-07-00A-655A-D|Issue No:001.00|Issue Date:2013-03-20

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 70-32-07-100-501 Procedure For The Mechanical Removal Or Finishing Of Thermal Spray Coatings

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NONE

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

WARNING

IT IS THE RESPONSIBILITY OF THE OPERATOR TO OBTAIN AND OBSERVE THE MANUFACTURER'S MATERIAL SAFETY DATA SHEETS FOR CONSUMABLE MATERIALS. THESE CONTAIN INFORMATION SUCH AS, HAZARDOUS INGREDIENTS, PHYSICAL/CHEMICAL CHARACTERISTICS, FIRE, EXPLOSION, REACTIVITY, HEALTH HAZARD DATA, PRECAUTIONS FOR SAFE HANDLING, USE AND CONTROL MEASURES, AND ALSO TO TAKE LOCAL REGULATIONS IN TO CONSIDERATION.

Procedure

    1. SUBTASK 70-32-07-320-001 General

    1. Single-point machining and grinding are effective mechanical methods (procedures) for the removal of thermal spray coatings from parts.

    2. On some components it will be necessary to finish machine the coatings to obtain the necessary dimensions and the correct surface finish. For harder coatings, grinding will be necessary to remove stock to the finished dimensions.

    3. The table in Step gives the recommended grind or single-point machining methods to remove or finish thermal spray coatings.

      1. When you grind thermal spray coatings on titanium alloy parts, the grinding materials and parameters must also agree with the SPM TASK 70-32-06-320-501 Grinding of Titanium Parts.

        1. If you use diamond grinding wheels to grind thermal spray coatings on titanium alloy parts, it is necessary to subsequently grind by the SPM TASK 70-32-06-320-501 or machine all surfaces where the diamond wheel touches base material.

    5. In some instances, thermal spray coatings can be more easily and/or economically stripped or degraded by chemical stripping methods or by the SPM TASK 70-15-01-160-501 Stripping Coating by High Pressure Water Blasting.

  2. SUBTASK 70-32-07-320-002 Table of Grind and Single-Point Machine Methods for Thermal Spray Coatings

    Coating Specification

    Grind

    Grinding Wheel Types

    Single-Point Machine

    IAE 46

    X

    Diamond

    --

    IAE 49

    X

    Diamond

    --

    IAE 50

    X

    Diamond

    --

    IAE 52

    X

    Diamond

    --

    IAE 53-1

    X

    Silicon Carbide, Diamond

    --

    IAE 53-2

    X

    Diamond

    --

    IAE 53-5

    X

    Silicon Carbide, Diamond

    --

    IAE 53-7

    X

    Silicon Carbide, Diamond

    --

    IAE 53-10

    X

    Diamond

    --

    IAE 53-11

    X

    Diamond

    --

    IAE 53-12

    X

    Diamond

    --

    IAE 53-13

    X

    Aluminum Oxide, Silicon Carbide, Diamond

    --

    IAE 53-14

    X

    Aluminum Oxide, Silicon Carbide, Diamond

    X

    IAE 53-15

    X

    Aluminum Oxide, Silicon Carbide, Diamond

    X

    IAE 53-16

    X

    Aluminum Oxide, Silicon Carbide, Diamond

    --

    IAE 53-17

    X

    Aluminum Oxide, Silicon Carbide, Diamond

    X

    IAE 53-18

    X

    Aluminum Oxide, Silicon Carbide, Diamond

    --

    IAE 53-20

    --

    --

    X

    IAE 53-21

    X

    Aluminum Oxide, Silicon Carbide, Diamond

    X

    IAE 53-22

    X

    Aluminum Oxide, Silicon Carbide, Diamond

    --

    IAE 53-35

    --

    --

    X

    IAE 53-37

    X

    Aluminum Oxide, Silicon Carbide, Diamond

    X

    IAE 53-38

    X

    Aluminum Oxide, Silicon Carbide, Diamond

    --

    IAE 53-47

    X

    Aluminum Oxide, Silicon Carbide, Diamond

    X

    IAE 53-69

    --

    --

    X

    IAE 53-78

    --

    --

    X

    IAE 53-80

    X

    Aluminum Oxide, Silicon Carbide, Diamond

    X

    IAE 54

    X

    Diamond

    X

    IAE 72

    --

    --

    X

    IAE 74

    --

    --

    X

    IAE 75

    --

    --

    X

    IAE 256-1

    X

    Diamond

    --

    IAE 256-2

    X

    Diamond

    --

    IAE 256-4

    X

    Diamond

    --

    IAE 256-5

    X

    Diamond

    --

    IAE 256-6

    --

    --

    X

    IAE 257-1

    X

    Diamond

    --

    IAE 257-2

    X

    Diamond

    X

    IAE 269

    X

    Aluminum Oxide, Silicon Carbide

    X

    IAE 271-13

    X

    Aluminum Oxide, Silicon Carbide, Diamond

    X

    IAE 271-35

    X

    Aluminum Oxide, Silicon Carbide, Diamond

    X

    IAE 271-37

    X

    Aluminum Oxide, Silicon Carbide, Diamond

    X

    IAE 271-47

    X

    Aluminum Oxide, Silicon Carbide, Diamond

    X

    IAE 271-48

    X

    Aluminum Oxide, Silicon Carbide, Diamond

    X

    IAE 36206-1

    X

    Diamond

    --

    IAE 36206-2

    X

    Diamond

    --

    IAE 36206-3

    X

    Diamond

    --

    IAE 36206-4

    X

    Aluminum Oxide, Silicon Carbide, Diamond

    X

    IAE 36206-5

    X

    Aluminum Oxide, Silicon Carbide, Diamond

    X

    IAE 36206-6

    X

    Aluminum Oxide, Silicon Carbide, Diamond

    X

    IAE 36206-7

    X

    Silicon Carbide, Diamond

    --

    IAE 36206-8

    X

    Silicon Carbide, Diamond

    --

Requirements After Job Completion

Follow-On Conditions

NONE