Comentarii la: 1 ianuarie 2023. 7X17X17= 2023. Bara plată din aluminiu a scăpat mult înapoi, creând o problemă interesantă.

De: Peter Ripley

Peter Ripley — Tue, 03 Jan 2023 08:25:18 +0000

The aluminium bar is best annealed before bending to shape, or it will spring back or just have too much tension.

Usual method for aluminium car body work is to soot the panel with a pure acetylene flame, then heat until the soot just has disappeared. It is now annealed and ready for straightening of the dent.

Good luck with your build and sail!

De: broer deroos

broer deroos — Mon, 02 Jan 2023 21:36:18 +0000

A heat gun is not hot enough. Jou have to heat it with acetylene burner and a steel Mal

De: Christopher Wallace, Bonsai Method

Christopher Wallace, Bonsai Method — Mon, 02 Jan 2023 20:16:48 +0000

Happy New Year! I wish I could support monetarily, but at the moment I can contribute comments and likes. I’m truly grateful for your work and all that you share! Keep up the inspiring channel, and big thank you to Peter and friends.

De: Super Wag

Super Wag — Mon, 02 Jan 2023 13:39:18 +0000

Im a metallurgical engineer, specialising in marine structures. I can tell you that your aluminium bronze can be cold worked with some risk of cracking and it requires large forces which you may not be able to reach in your workshop.
It can also be hot worked and its suitability for hot working is good. The best temperature for hot work of aluminium bronze is between 780 – 870 deg C. You will need something more powerful than an electric heat gun because of coppers extremely high thermal conductivity, meaning your heat source is rapidly drawn away and dissipated to the atmosphere. Insulation will help. You only need to reach high temperature in the area you are bending, not the entire piece. You can confirm that you have reached the required temperature using special crayons which change colour when temperature is reached. They are commonly used in critical welding operations, so can be procured there. Hope that helps.

De: Damo OG

Damo OG — Mon, 02 Jan 2023 11:16:00 +0000

I agree with the comments below. That will always be under tension. Perhaps take it to your friend at the foundry.

De: Peder Dahl

Peder Dahl — Mon, 02 Jan 2023 10:19:12 +0000

I Will heat it to a high temperatur with a gas bruner to g’et the tension out.

De: Damon Jarrett

Damon Jarrett — Mon, 02 Jan 2023 04:12:27 +0000

To soften bronze heat and cool quickly. To harden heat and cool slowly.

De: Henry Teller

Henry Teller — Mon, 02 Jan 2023 01:23:11 +0000

It would make me nervous thinking about that bar forever exerting that much tension trying to break loose and spring free. Personally, I'd try to deform it more. Perhaps by simply standing on one half and pulling on the other end.

De: robert carkeek

robert carkeek — Mon, 02 Jan 2023 00:52:01 +0000

Heat will make it fracture, just over bend it.

De: robert carkeek

robert carkeek — Mon, 02 Jan 2023 00:46:53 +0000

cold bend the bronze, and you'll have better luck. No heat!