Soldering aluminium

[Jlg]

can you solder aluminium I have a exhaust from a Rc car that has tore a little bit when I tried pulling the dents out after hitting a fence with it

 

[julianf]

How hot does it get? I don't think solder will work anyhow, but remember it melts... At a similar temp to some of the high temp epoxies are rated to.

In short, I'd glue it. Unless it gets hotter than I imagine?

 

[rtbcomp]

You can get aluminium solder, it's basically silver solder with a special flux.

 

[brightspark]

u can braze it using technoweld rods and a blowtorch .

 

[Jlg]

It gets somewhere between 150-200c

 

[Jlg]

You can get aluminium solder, it's basically silver solder with a special flux.

I'll have a look

 

[Jlg]

u can braze it using technoweld rods and a blowtorch

I had some of them but someone tided the house and there MIA

 

[gordon stephenson]

As BS said, There are a few ally "brazing" rod makes, Excellent products if used correctly, I think from memory they work around 350ish degrees, For a small job a gas/propane torch is quite hot enough.

 

[Jlg]

And the metal is only about 1mm thick

 

[Jlg]

@brightspark will these do I just found where they were moved to

 

[gordon stephenson]

I'm sure that BS will agree, those will be spot on,

 

[Turbo]

Just be careful when you use them, especially on ally that thin. The filler rods melts at nearly the same temp as ally & it can easily become a mess. I would suggest practicing on some scrap first.