TASK 70-37-31-370-501 Heat treatment/ Stress-Relief After Welding

DMC:V2500-00-70-37-31-00A-634A-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 70-37-31-370-501 Heat treatment/ Stress-Relief After Welding

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 MANUFACTURERS MATERIAL SAFETY DATA SHEETS FOR CONSUMABLE MATERIALS 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 70-37-31-370-001 Procedure

    1. NOTE

      This procedure will not give the optimum stress-relief that you get when you use Stress-Relief Cycle 10 at 1800 deg F (982 deg C). (Refer to the SPM TASK 70-37-16-370-501.) Use this procedure only when it is specified by an Engine Manual repair that is part/application specific. This procedure is not applicable for general repairs. For parts operating above 800 deg F (427 deg C), the SPM TASK 70-37-16-370-501 is recommended to prevent local corrosion.

      Increase the temperature of the part to 1175 to 1225 deg F (635 to 663 deg C) and hold for one hour. Air is an acceptable atmosphere. Heating rate is optional.

    2. Subsequent cooling rate is optional.

Requirements After Job Completion

Follow-On Conditions

NONE