TASK 70-37-12-370-501 Stress-Relief Cycle 6

DMC:V2500-00-70-37-12-00A-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 70-37-12-370-501 Stress-Relief Cycle 6

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 INTO CONSIDERATION.

Procedure

    1. SUBTASK 70-37-12-370-001 Stress-Relief Cycle 6

    1. CAUTION

      THE WELD JOINT IS BRITTLE AS WELDED. THE PART MUST BE HANDLED CAREFULLY AND KEPT CLEAN AND DRY UNTIL STRESS-RELIEVED/TEMPERED TO PREVENT CRACKING. IT IS HIGHLY RECOMMENDED THAT SUBSEQUENT STRESS-RELIEF/TEMPERING BE DONE WITHIN 24 HOURS WITH LESS THAN 12 HOURS PREFERRED.

      NOTE

      To minimize distortion temperatures can be increased and decreased slowly as in Cycle 6A in the SPM TASK 70-37-13-370-501. Other cycles are permitted if the necessary stress relief of 1035 to 1065 deg F (557 to 574 deg C) for two hours is done.

      Increase the temperature of the part to 1035 to 1065 deg F (557 to 574 deg C) and hold for two hours. Air is a permitted atmosphere. Temperature increase and decrease rates are optional.

Requirements After Job Completion

Follow-On Conditions

NONE