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non mechanical securing of alumnium
jabbahutt - 12/10/10 at 07:04 AM

Morning all

Time to pick the collective brains here again. I have a piece of 10mm ali tube which needs securing to a non circular ali bar.

I've filed the bar so that it's a reasonably snugg fit inside the tube, though there are gaps where there isn't metal to metal contact. I wish to permantly attach the bar inside the tube and it will be taking a small amount of weight (50g)

What would you lot recomend for producing a decent bond? I was thinking either sikaflex or araldite.

Opinons please on those options or any other ideas. Solution must be readily avaialble without resorting to the interweb etc.

Many thanks


balidey - 12/10/10 at 07:24 AM

I would go with araldite, or any 2 part epoxy type adhesive. Just key and clean the faces well first


tony-devon - 12/10/10 at 07:32 AM

as above, 2 part epoxy resin,

or JB weld

I use that to build up areas and then drill and tap it, really is very good.

fine with heat, fuel etc


jabbahutt - 12/10/10 at 07:36 AM

Many thanks fellas, this site never lets me down.


RazMan - 12/10/10 at 07:43 AM

Have you considered alluminium solder?


CNHSS1 - 12/10/10 at 08:30 AM

Lumiweld?


marcjagman - 12/10/10 at 09:07 AM

ALLY SOLDER? Never heard of it, where do you get it from, how do you use it etc?????


britishtrident - 12/10/10 at 12:23 PM

You don't say if the bar is round or square.

If round a pity you filed the bar otherwise you could have heat shrunk the tube on.

If round and close fit use superglue.


MikeRJ - 12/10/10 at 12:40 PM

quote:
Originally posted by marcjagman
ALLY SOLDER? Never heard of it, where do you get it from, how do you use it etc?????


It's just a special alloy solder that will bond to aluminium. It's quite difficult stuff to use IME, you have to use special flux with it. Quite a few places sell it - I even seen it at B&Q, and Maplin definately sell it.


CNHSS1 - 12/10/10 at 01:05 PM

quote:
Originally posted by marcjagman
ALLY SOLDER? Never heard of it, where do you get it from, how do you use it etc?????


Lumiweld as my prev post