A friend who fishes local lakes, dropped round with an expensive
telescopic carbon fibre catch net, where the net part was fixed to the
carbon fibre tube, via a threaded metal (alloy) endcap which slide over
the tube. The endcap had pulled off, he had tried to superglue it,
which had not worked, but there was no sign of an mechanical fixing.
So no idea what sort of adhesive was originally used, which had failed,
but... I abraded the tube and the inner surface of the endcap and used
Araldite slow cure. I suppose I ought to have used a couple of pop
rivets through the sides too?
On Thu, 07 Jun 2018 12:39:50 +0100, Harry Bloomfield
Oxide forms quickly on aluminium and can result in a poor bond. For high
integrity joints it needs to be excluded
Abrade the aluminium with scotchbrite and acetone to degrease
Then abrade the aluminum with scotchbrite whilst it is submerged in epoxy (a
fully wetted small piece of scotchbite an inch or two square is often enough)
With the correct preparation there would be no need for any pop rivets
Very similar methods are used on carbon driveshafts and suspension arms /
Sounds good to me. I always worry slightly about using pop rivets in
composites. Another option might be to use small self tappers (tapping
into the alloy, just poking into the carbon fibre). IIRC most carbon
fibre stuff is bonded with epoxy.
This email has been checked for viruses by Avast antivirus software.
HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.