Repair To Cracked Aluminium Frame

Postby hillclimber on Fri 20/Mar/15 9:25pm

I have a Fondriest Aluminium road bike and a crack has appeared just above bottom bracket on seat down tube. Can it be welded? I live in Christchurch. Does anyone know a person who could do it? The frame is a team bike in the Lampre colours, so I am keen to keep it.
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Re: Repair To Cracked Aluminium Frame

Postby Simonius_Titius on Sat 21/Mar/15 12:49am

What kind of tubing is it? 6061 needs a full oven treatment. 7005 it is less critical.

The weld is going to be weaker than the original metal that cracked. Is it feasible to glue a new bit of aluminium over the crack? sometimes a carbon fibre patch can be glued over a tricky bit, there is some knowledge needed to prep it right and avoid corrosion. A yacht builder should be able to do it.
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Re: Repair To Cracked Aluminium Frame

Postby happybaboon on Sat 21/Mar/15 2:29am

Load bearing stickers?
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Re: Repair To Cracked Aluminium Frame

Postby Dougal on Sat 21/Mar/15 3:43am

hillclimber wrote:I have a Fondriest Aluminium road bike and a crack has appeared just above bottom bracket on seat down tube. Can it be welded? I live in Christchurch. Does anyone know a person who could do it? The frame is a team bike in the Lampre colours, so I am keen to keep it.


Sure you can fix it. But the fixing will likely involve ruining the paint.

So it may be best as a wall ornament if the paint scheme is the important bit.
Dougal
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Re: Repair To Cracked Aluminium Frame

Postby dwgknz on Sat 21/Mar/15 9:41am

There's a guy in Chch who can weld aliminium, he holds some welding tickets and that. He started a thread about it http://www.vorb.org.nz/talas-about-t124949.html.

However for my bike Id look elsewhere.
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