Talk Composites - The Forum for Advanced Composites

Tube-to-tube method

http://www.talkcomposites.com/Topic36285.aspx

By rpiontek - 4/20/2020 7:23:20 AM

I would like to join two tubes together (for building a bike frame).  From what I can see in pictures the tubes are first tacked in the frame building fixture, then the joints are built up with a 'putty', and then further wrapped in carbon.   

Can you please tell me what material to use for the tacking, and what to use as the putty?  Thanks!








By SleepingAwake - 4/20/2020 9:17:57 AM

rpiontek - 4/20/2020 7:23:20 AM
I would like to join two tubes together (for building a bike frame).  From what I can see in pictures the tubes are first tacked in the frame building fixture, then the joints are built up with a 'putty', and then further wrapped in carbon.   

Can you please tell me what material to use for the tacking, and what to use as the putty?  Thanks!









I used a structrual (epoxy)adhesive to join the tubes and epoxy and microballons with some thixotropic agent for the putty.