Aluminium Heat Treatment and Times

Have the parts in a proper heat treatment oven with accurate,stable temperature control.Also make sure there is a proper airflow around the part.Rapid quenching is the key,most have a dunk tank directly underneath the oven to get the heat away quickly to set the hardness.After quenching you have about 20sec for the part to be fully hard as there will be some distortion involved.Best thing is to take the forming jig that made the part and clamp it back into it straight after quenching.

Thank you guys, there is some very useful information there, really grateful.

If anyone has any tips or other information I would appreciate any input.

Many Thanks again!

Have a poke about here:
https://www.thefabricator.com/article/aluminumwelding/achieving-t6-designation-for-6061

and:
https://www.houghtonintl.com/sites/default/files/resources/article_-_heat_treating_aluminum_for_aerospace_applications.pdf

or:
https://materialsdata.nist.gov/bitstream/handle/11115/192/Heat%20Treating%20of%20Aluminum%20Alloys.pdf?sequence=3&isAllowed=y

Off hand I cannot recall. However, it may be worth consulting AC43

https://www.faa.gov/regulations_policies/advisory_circulars/index.cfm/go/document.information/documentID/99861