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OneX, landing gear axle fit
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Re: OneX, landing gear axle fit
by peter anson » Tue Nov 28, 2017 9:51 pm
I've come to this pretty late but it might be relevant for other things.
The answer is, cooling - no problem, heating - plenty, but it depends on the temperature and time at temperature. 6061T6 is made by "artificially aging" the metal at a temperature of around 180°C for about 5 hours. If it is kept at that temperature for longer, the strength falls off until you end up with something which I think is equivalent to 6061-0 which is pretty soft, but it does take time. If you are only heating the metal up to 180°C for a few minutes it will probably be OK but at higher temperatures things happen quicker and I'd guess that going above 200°C is a no-no. Here's a link to a report which explains it better:https://www.hindawi.com/journals/isrn/2012/374719/
And here is a summary aging graph.
Peter
As a side issue, I always wondered what heating and cooling aluminum does, if anything, to its strength...
The answer is, cooling - no problem, heating - plenty, but it depends on the temperature and time at temperature. 6061T6 is made by "artificially aging" the metal at a temperature of around 180°C for about 5 hours. If it is kept at that temperature for longer, the strength falls off until you end up with something which I think is equivalent to 6061-0 which is pretty soft, but it does take time. If you are only heating the metal up to 180°C for a few minutes it will probably be OK but at higher temperatures things happen quicker and I'd guess that going above 200°C is a no-no. Here's a link to a report which explains it better:https://www.hindawi.com/journals/isrn/2012/374719/
And here is a summary aging graph.
Peter
- peter anson
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