TASK 70-32-06-320-501 Grinding Of Titanium Parts

DMC:V2500-00-70-32-06-00A-655A-D|Issue No:002.00|Issue Date:2016-05-01

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 70-32-06-320-501 Grinding Of Titanium Parts

General

It is not permitted to grind the bores or webs of rotating parts.

After you grind surfaces to this procedure, the surface must be without:

Tears

Pits

Burns

Other imperfections.

For grinding parameters (IAE 106), refer to Step thru Step.

NOTE

After you make your selection of one of the above materials, refer to the applicable manufacturer's instructions to mix and keep this material. Do not intermix coolants and grinding fluids in the same machine. These coolants and cutting fluids are approved for use on steels, stainless steels, nickel base alloys, cobalt base alloys, aluminum, titanium and titanium alloys.

NOTE

Single-point turning of titanium base material is an alternative to grinding when this procedure is specified. No turning of plated material is permitted.

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 INTO CONSIDERATION.
IT IS IMPORTANT TO REMOVE FREQUENTLY GRINDING SLUDGE FROM THE MACHINE BECAUSE HYDROGEN GAS FROM THE SLUDGE INCREASES THE RISK FOR POSSIBLE FOR FIRE OR EXPLOSION.
TITANIUM DUST CAN CAUSE A DANGEROUS FIRE. THUS, IT IS VERY IMPORTANT TO CLEAN THE MACHINE AND THE WORK AREA A MINIMUM OF ONE TIME EACH DAY TO REMOVE THE TITANIUM DUST. DO NOT LET TITANIUM DUST GET ON CLOTHING.

Procedure

    1. SUBTASK 70-32-06-320-001 Reciprocating and Rotary Table Grinding (Horizontal and Vertical Spindle)

      1. Grinding with aluminum oxide.

        1. Abrasive size, mesh.

        1. Roughing: 36 to 120.

        2. Finishing: 36 to 120.

        2. Wheel hardness.

        1. Roughing: Medium (I-M).

        2. Finishing: Medium (I-M).

        3. Wheel speed, maximum.

        1. Roughing: 2300 sfpm.

        2. Finishing: 2300 sfpm.

        4. Downfeed, maximum.

        1. Roughing: 0.001 inch (0.0254 mm)/pass.

        2. Finishing: 0.0005 inch (0.0127 mm)/pass.

        5. Crossfeed, maximum.

        1. Roughing: 0.025 to 0.050 inch. (0.635 to 1.27 mm)/pass.

        2. Finishing: 0.025 to 0.050 inch (0.635 to 1.27 mm)/pass.

        6. Table speed.

        1. Roughing: 30 to 150 fpm.

        2. Finishing: 30 to 150 fpm.

        7. Grinding fluid for roughing and finishing.

        1. Solution Code 177. Refer to SPM TASK 70-32-08-320-501.

      2. Grinding with silicon carbide.

        1. Abrasive size, mesh.

        1. Roughing: 54 to 120.

        2. Finishing: 54 to 120.

        2. Wheel hardness.

        1. Roughing: Medium (I-M).

        2. Finishing: Medium (I-M).

        3. Wheel speed, maximum.

        1. Roughing: 4000 sfpm.

        2. Finishing: 4000 sfpm.

        4. Downfeed, maximum.

        1. Roughing: 0.001 inch (0.0254 mm)/pass.

        2. Finishing: 0.0005 inch (0.0127 mm)/pass.

        5. Crossfeed, maximum.

        1. Roughing: 0.025 inch (0.635 mm)/pass.

        2. Finishing: 0.050 inch (1.27 mm)/pass.

        6. Table speed.

        1. Roughing: 30 to 150 fpm.

        2. Finishing: 30 to 150 fpm.

        7. Grinding fluid for roughing and finishing.

        1. Solution Code 177. Refer to SPM TASK 70-32-08-320-501.

    2. SUBTASK 70-32-06-320-002 Cylindrical Grinding on Centers (External and Internal)

      1. Grinding with aluminum oxide.

        1. Abrasive size, mesh.

        1. Roughing: 36 to 120.

        2. Finishing: 36 to 120.

        2. Wheel hardness.

        1. Roughing: Medium (I-M).

        2. Finishing: Medium (I-M).

        3. Wheel speed, maximum.

        1. Roughing: 2300 sfpm.

        2. Finishing: 2300 sfpm.

        4. Infeed, maximum.

        1. Roughing: 0.001 inch (0.0254 mm)/pass.

        2. Finishing: 0.0005 inch (0.0127 mm)/pass.

        5. Workpiece speed.

        1. Roughing: 50 to 350 sfpm.

        2. Finishing: 50 to 350 sfpm.

        6. Grinding fluid for roughing and finishing.

        1. Solution Code 177. Refer to SPM TASK 70-32-08-320-501.

      2. Grinding with silicon carbide.

        1. Abrasive size, mesh.

        1. Roughing: 36 to 120.

        2. Finishing: 36 to 120.

        2. Wheel hardness.

        1. Roughing: Medium (I-M).

        2. Finishing: Medium (I-M).

        3. Wheel speed, maximum.

        1. Roughing: 4000 sfpm.

        2. Finishing: 4000 sfpm.

        4. Infeed, maximum.

        1. Roughing: 0.001 inch (0.0254 mm)/pass.

        2. Finishing: 0.0005 inch (0.0127 mm)/pass.

        5. Workpiece speed.

        1. Roughing: 50 to 350 sfpm.

        2. Finishing: 50 to 350 sfpm.

        6. Grinding fluid for roughing and finishing.

        1. Solution Code 177. Refer to SPM TASK 70-32-08-320-501.

    3. SUBTASK 70-32-06-320-003 Centerless Cylindrical Grinding

      1. Grinding with aluminum oxide.

        1. Abrasive size, mesh.

        1. Roughing: 36 to 120.

        2. Finishing: 36 to 120.

        2. Wheel hardness.

        1. Roughing: Medium (I-M).

        2. Finishing: Medium (I-M).

        3. Wheel speed, maximum.

        1. Roughing: 2100 sfpm.

        2. Finishing: 2100 sfpm.

        4. Infeed, maximum.

        1. Roughing: 0.001 inch (0.0254 mm)/pass.

        2. Finishing: 0.0005 inch (0.0127 mm)/pass.

        5. Throughfeed of work.

        1. Roughing: 50 to 150 inches/minute.

        2. Finishing: 50 to 150 inches/minute.

        6. Grinding fluid for roughing and finishing.

        1. Solution Code 177. Refer to SPM TASK 70-32-08-320-501.

      2. Grinding with silicon carbide.

        1. Abrasive size, mesh.

        1. Roughing: 36 to 120.

        2. Finishing: 36 to 120.

        2. Wheel hardness.

        1. Roughing: Medium (I-M).

        2. Finishing: Medium (I-M).

        3. Wheel speed, maximum.

        1. Roughing: 4000 sfpm.

        2. Finishing: 4000 sfpm.

        4. Infeed, maximum.

        1. Roughing: 0.001 inch (0.0254 mm)/pass.

        2. Finishing: 0.0005 inch (0.0127 mm)/pass.

        5. Throughfeed of work.

        1. Roughing: 50 to 150 inches/minute.

        2. Finishing: 50 to 150 inches/minute.

        6. Grinding fluid for roughing and finishing.

        1. Solution Code 177. Refer to SPM TASK 70-32-08-320-501.

    4. SUBTASK 70-32-06-320-004 Belt Grinding with Different Abrasive Types

      1. Abrasive type.

      1. Roughing: Aluminum oxide, silicon carbide, or aluminum oxide-zirconium oxide.

      2. Finishing: Silicon carbide.

      2. Grain size.

      1. Roughing: 50 to 80.

      2. Finishing: 100 to 240.

      3. Belt speed.

      1. Roughing: 1000 to 2500 sfpm.

      2. Finishing: 1200 to 2500 sfpm.

      4. Work speed, maximum.

      1. Roughing: 27.5 sfpm.

      2. Finishing: 27.5 sfpm.

      5. Feed, maximum.

      1. Roughing: 0.125 inch (3.175 mm)/revolution of work.

      2. Finishing: 0.125 inch (3.175 mm)/revolution of work.

      6. Grinding fluid for roughing and finishing.

      1. Solution Code 177. Refer to SPM TASK 70-32-08-320-501.

    5. SUBTASK 70-32-06-320-005 Stress Corrosion

    1. This subtask is deleted.

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised the procedure to delete the consumables information. (16VC071A)