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Certification of Aerospace Products to international quality Standards
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Self-locking torque test:
• What kind of test mandrel/ring has been used? (I mean, material and hardness)
• Is there any lubrication applied?
• What is the seating torque?
In test report, we have some boxes referring to these data, but they are empty.
Many thanks in advance,
Best regards,
Julien
• What kind of test mandrel/ring has been used? (I mean, material and hardness)
It is a steel mandrel with a hardness between 58 and 60 HRC, uncoated.
• Is there any lubrication applied?
Yes, Lanoline. See updated TR 14803707, rev 2 (instate of rev 1) in the locking torque box
• What is the seating torque?
90 Nm. Also the measured locking torque
* In test report, we have some boxes referring to these data, but they are empty.
As mentioned before the TR 14803707 is updated and is now revision 2
I agree with all these answers.
Approved from my side,
Best regards,
Julien