30 year welding and machining. I use a sharpie marker ! You should also move evenly across the panel from side to side. Don’t just start at one edge and work across. Just a tip. Good luck
I was shown by an old timer when annealing heat the aluminium up and keep a lollipop stick in your hand. Rub it on the surface that you have heated when ready it will leave a black mark. I've never had any issues this way
Might help if you placed a thermocouple on the back side of those plates to have an idea of what temperature you reach with the torch. Perhaps consulting a standard for annealing of aluminum will help refine your process to more of a science, recording annealing temperature and time. I don't think your plate should bend during the annealing process. A few tips for that include clamping the plate, pre-heating the plate before annealing, and heating up both sides of the plate.
I’ve landed on this video. Haven’t seen previous one. Can you explain in the video description what you’re doing and why? Are you using the candle soot as an indicator of when the metal temperature is right?
Well , none of the parts on my Robot fit those sort of features. I would think that within reason, the way I annealed the 6061 Aluminium Sheets should also work with Round stock as you suggest. Give it a try!
so after annealing the area then you will bend on a brake? I want to bend some 3/8's 6061 rod - 1 bend - so when the carbon mark goes away you have reached the correct temp to start the process?
Great video! Once the aluminum is annealed using this method, how soon after can you perform the bend? Also, how long can you wait after to perform the bend as well?
Dear sir I have a aluminium tube diameter 40mm and thickness 2mm, alloy 6063 . I need tensile strength 270 M pa , please tell me process after extrusion how can we get?
you said the candle method was too slow, and opted for the faster method ,honest mistake I would have done the same but at least we are all learning from these vids ,even if you just get one comment,,,,,, if you ever get a chance, a vid on basic ez-b set up would be great or what you have learnt to do with it
Yes, I had Just thought that the Candle method would be slow without actually trying it. Turns out that is is surprisingly fast and produces a much better and thinner soot coating to indicate the correct annealing transition temperature.
My basic understanding is that once Aluminium is annealed and bent, it will somewhat "age harden" after a period of time (At least a few weeks?) but will not re-harden to it's previous full strength temper on it's own. To regain full T6 temper, the Aluminium has to be "heat treated" by a company that specializes in re-tempering of annealed Aluminium.
T6 will have a minimum ultimate strength of 38,000 ksi, minimum yield strength of 32,000 ksi and minimum of 8% elongation. If you annealed it, it will be much softer. I can't remember the exact tensile parameters but the ductility will increase greatly. In order to bring it back to t6 temper, you will need to heat it to 450°f for 8 hrs.
![Heat Treating Aluminium [Easy DIY method]](http://i.ytimg.com/vi/z5ejhb1t8BY/mqdefault.jpg)
![Heat Treating Aluminium [Easy DIY method]](/img/tr.png)
30 year welding and machining. I use a sharpie marker ! You should also move evenly across the panel from side to side. Don’t just start at one edge and work across. Just a tip. Good luck
I was shown by an old timer when annealing heat the aluminium up and keep a lollipop stick in your hand. Rub it on the surface that you have heated when ready it will leave a black mark. I've never had any issues this way
Thank you for sharing this 🙏✌️
Like the candle trick, Thanks for your time.
No problem 👍
Might help if you placed a thermocouple on the back side of those plates to have an idea of what temperature you reach with the torch. Perhaps consulting a standard for annealing of aluminum will help refine your process to more of a science, recording annealing temperature and time. I don't think your plate should bend during the annealing process. A few tips for that include clamping the plate, pre-heating the plate before annealing, and heating up both sides of the plate.
I’ve landed on this video. Haven’t seen previous one. Can you explain in the video description what you’re doing and why? Are you using the candle soot as an indicator of when the metal temperature is right?
Show how to flare the tip of a 2" OD aluminum pipe using a torch and maybe some sort of metal cone? please.
Well , none of the parts on my Robot fit those sort of features. I would think that within reason, the way I annealed the 6061 Aluminium Sheets should also work with Round stock as you suggest. Give it a try!
so after annealing the area then you will bend on a brake? I want to bend some 3/8's 6061 rod - 1 bend - so when the carbon mark goes away you have reached the correct temp to start the process?
Thanks very interesting 👍🏻
Great video! Once the aluminum is annealed using this method, how soon after can you perform the bend? Also, how long can you wait after to perform the bend as well?
if its T6061, it "air hardens" so you want to bend it pretty soon after annealing
Thank you
Thank you. It would be hard for diy'er to make large t6 aluminium frame for velomobile or micro car.
Dear sir
I have a aluminium tube diameter 40mm and thickness 2mm, alloy 6063 . I need tensile strength 270 M pa , please tell me process after extrusion how can we get?
I'm sorry but I cannot be of any help to you as I'm not an expert in this field.
why don't you quench it as soon as it is exruded and then try artificial aging ?
you said the candle method was too slow, and opted for the faster method ,honest mistake I would have done the same but at least we are all learning from these vids ,even if you just get one comment,,,,,, if you ever get a chance, a vid on basic ez-b set up would be great or what you have learnt to do with it
Yes, I had Just thought that the Candle method would be slow without actually trying it. Turns out that is is surprisingly fast and produces a much better and thinner soot coating to indicate the correct annealing transition temperature.
Can you bend aluminium tube after t6 heat treated and retain it's durability?
My basic understanding is that once Aluminium is annealed and bent, it will somewhat "age harden" after a period of time (At least a few weeks?) but will not re-harden to it's previous full strength temper on it's own. To regain full T6 temper, the Aluminium has to be "heat treated" by a company that specializes in re-tempering of annealed Aluminium.
T6 will have a minimum ultimate strength of 38,000 ksi, minimum yield strength of 32,000 ksi and minimum of 8% elongation. If you annealed it, it will be much softer. I can't remember the exact tensile parameters but the ductility will increase greatly. In order to bring it back to t6 temper, you will need to heat it to 450°f for 8 hrs.
Oh an I'm a quality control manager for an aluminum extrusion company that makes 6061 extrusions.
hey the little jhonny 5's up there
how to heat a 6061 t6 bicycle frame part after seam welding to remove residual stresses ??? this is the main question for cyclists around the world
if you're still looking for a faster method, black sharpie works as well.