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Aluminium welding [message #300700] Mon, 13 May 2019 08:52 Go to next message
spagiratwink is currently offline  spagiratwink   United Kingdom
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(6) Moto1 GP Racer
Came across this on another site , handy bit of brazing kit Yes
https://www.chronos.ltd.uk/engineering-tools/2013/durafix-al uminium-welding-brazing-soldering-rods-from-chronos/
Re: Aluminium welding [message #300701 is a reply to message #300700] Mon, 13 May 2019 14:00 Go to previous messageGo to next message
Kakugo is currently offline  Kakugo   Italy
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(18) Geoff Duke
Do you know of any similar product that can be used to repair Zamac? think

Besides being one of the trickiest alloys to repair (if I remember correctly it can only be soldered: too high of a temperature and it will go brittle) it needs very specific rods/wire spools which are becoming impossible to find and hence prohibitively priced.
It would be nice to find some at a reasonable price to keep around. Thumbs Up
Re: Aluminium welding [message #300702 is a reply to message #300701] Mon, 13 May 2019 14:23 Go to previous messageGo to next message
spagiratwink is currently offline  spagiratwink   United Kingdom
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(6) Moto1 GP Racer
Kakugo wrote on Mon, 13 May 2019 14:00
Do you know of any similar product that can be used to repair Zamac? think

Besides being one of the trickiest alloys to repair (if I remember correctly it can only be soldered: too high of a temperature and it will go brittle) it needs very specific rods/wire spools which are becoming impossible to find and hence prohibitively priced.
It would be nice to find some at a reasonable price to keep around. Thumbs Up
Hi Kak, reading the info on these , they are produced with Zinc and Aluminium , and use a more cooler Brazing flame to melt the rod, watched a video with him actually brazing a hole in a cola can, could be just the thing for Zamac Yes
Re: Aluminium welding [message #300704 is a reply to message #300702] Mon, 13 May 2019 18:17 Go to previous messageGo to next message
Quazi is currently offline  Quazi   United Kingdom
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(22) Giacomo Agostini
Yep, used this with a good lasting result.

Ask me nicely and I might tell you on what. Laugh
Re: Aluminium welding [message #300705 is a reply to message #300704] Mon, 13 May 2019 18:52 Go to previous messageGo to next message
spagiratwink is currently offline  spagiratwink   United Kingdom
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(6) Moto1 GP Racer
Quazi wrote on Mon, 13 May 2019 18:17
Yep, used this with a good lasting result.

Ask me nicely and I might tell you on what. Laugh
Not used it myself , is it any good on engine cracks Quazi smile
Re: Aluminium welding [message #300706 is a reply to message #300705] Mon, 13 May 2019 20:04 Go to previous messageGo to next message
Quazi is currently offline  Quazi   United Kingdom
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(22) Giacomo Agostini
Yes I'd say, as I used it on and engine case.

I needed to fit an alternative oil temp sensor, the original threaded section wasn't deep enough to take an aftermarket sensor, so I had to put a huge blob of the stuff on the case and fill the old thread and make it taller. I threaded it out and fitted a new sensor. It's been on there for a good few years, it's on my old gsx engine which has been used for club racing for two years, been on track here and there and been as good as gold.

The key is to get the original part clean and fooking hot, worked for me.
Re: Aluminium welding [message #300707 is a reply to message #300702] Mon, 13 May 2019 20:41 Go to previous messageGo to next message
Kakugo is currently offline  Kakugo   Italy
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(18) Geoff Duke
spagiratwink wrote on Mon, 13 May 2019 15:23
Kakugo wrote on Mon, 13 May 2019 14:00
Do you know of any similar product that can be used to repair Zamac? think

Besides being one of the trickiest alloys to repair (if I remember correctly it can only be soldered: too high of a temperature and it will go brittle) it needs very specific rods/wire spools which are becoming impossible to find and hence prohibitively priced.
It would be nice to find some at a reasonable price to keep around. Thumbs Up
Hi Kak, reading the info on these , they are produced with Zinc and Aluminium , and use a more cooler Brazing flame to melt the rod, watched a video with him actually brazing a hole in a cola can, could be just the thing for Zamac Yes
Unfortunately I have a nasty habit of reading the fine print and:

Durafix will not work on lead, mazac, zamac, tin or pewter

Sad
Re: Aluminium welding [message #300710 is a reply to message #300706] Tue, 14 May 2019 04:46 Go to previous messageGo to next message
spagiratwink is currently offline  spagiratwink   United Kingdom
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(6) Moto1 GP Racer
Quazi wrote on Mon, 13 May 2019 20:04
Yes I'd say, as I used it on and engine case.

I needed to fit an alternative oil temp sensor, the original threaded section wasn't deep enough to take an aftermarket sensor, so I had to put a huge blob of the stuff on the case and fill the old thread and make it taller. I threaded it out and fitted a new sensor. It's been on there for a good few years, it's on my old gsx engine which has been used for club racing for two years, been on track here and there and been as good as gold.

The key is to get the original part clean and fooking hot, worked for me.
Cheers matey, will get some Thumbs Up
Re: Aluminium welding [message #300711 is a reply to message #300710] Tue, 14 May 2019 08:18 Go to previous messageGo to next message
Gearbox is currently offline  Gearbox   United Kingdom
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(15) Kenny Roberts
Bro in law has used it for some time. He has done a few jobs and been very impressed. Just like soldering only a bit hotter.
Clean and hot seems to be the key
Re: Aluminium welding [message #300712 is a reply to message #300711] Tue, 14 May 2019 09:14 Go to previous messageGo to next message
spagiratwink is currently offline  spagiratwink   United Kingdom
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Gearbox wrote on Tue, 14 May 2019 08:18
Bro in law has used it for some time. He has done a few jobs and been very impressed. Just like soldering only a bit hotter.
Clean and hot seems to be the key
Right matey, that's one of my OCD's , I like things clean Yes
Re: Aluminium welding [message #300716 is a reply to message #300712] Tue, 14 May 2019 12:23 Go to previous messageGo to next message
Kermit is currently offline  Kermit   United Kingdom
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(22) Giacomo Agostini
Looks interesting. I have a fairing mount bracket which is part of the engine casing (the alloy part, not magnesium? covers) missing on my CBR929 so now wondering if this would work on that.

The missing bracket/bolt doesn't really seem to matter much and I've watched the videos but can't tell if it may be possible to recreate a new bracket in situ?

[Updated on: Tue, 14 May 2019 12:24]

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Re: Aluminium welding [message #300727 is a reply to message #300716] Wed, 15 May 2019 08:38 Go to previous message
Gearbox is currently offline  Gearbox   United Kingdom
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(15) Kenny Roberts
Could depend on getting it hot enough. The surrounding mass may take the heat away faster than you can apply it.
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