Proflex Project

[cherrybomb]

Hi Paul

I'm interested to see you're using the aluminium 'brazing' rods. I'd looked at those for other projects but always steered clear of them in the end because they were an unknown quantity. Looking at your photos they can produce a nice clean joint, did you dress those in anyway or is that 'as brazed'?
Also, since you've used the stuff, do you think it could produce a neat joint if used on 6mm dia. alloy rod?

This is a really interesting project by the way. I'm loving the fact your using two unusual fixing techniques, ally brazing and bonding. I can't wait to see the finished job.

Chris

 

[Mr752]

You prep the joint by wire brushing the weld areas with a stainless steel wire brush which is supplied when you buy the rods, just give the metals a good scrub before set-up, then you heat with a plumbers heating torch, the rod won't run until the metal is at the right temp.
The website is www.easyweld.com or co.uk I think. It has a vide demo on it thats quite good.
Think you'd be good for 6mm rod, any surplus can be filed or ground away, you can drill and tap it as well!
I should get a job as a salesman for them!!!!!!!

 

[Mr752]

Knocked this up out of some bits I had in the garage.
the plate on the fork leg is 1-1/4" OD 6063-T6 tube cut to suit the fork leg profile, I'm not using this on the one I'm putting on the bike as the 16swg 1-5/8" tube can be manipulated to wrap around the fork leg to distribute the load better.
The disc mount is a stock Marzocchi qr-20 mounted pside down to allow for the reverse offset created by the linkage.
Gives you an idea of what the finished product will look something like.
Its stuck on with bluetack mind you, this wont be used in the final assembly!!!!!!!! :shock:

 

[orange71]

you're making quick progress!

 

[shovelon]

Shovelon said that if you cooled it with water it would speed up the age process and give you about T4 maybe. If you just left it from welding, the age process would take longer
To weld/braze this you only need to heat the metals to 300'c/700'f so I'm not sure how those temps will affect the molecular structure of the metals as oppose to TIG welding where the temps are in excess of the above, I'll PM Shovelon, he'll know being welding Guru.

Well 600degrees F. anneals the metal completely, and since the metal is heated for a longer time as opposed to a Tig weld, there will be more annealing. A cold water quench certainly is in order to get back some temper. From there it will age harden naturally. That is the same proceedure dip brazed alum radiators are done.

Dang, you are giving it a good crack!

Well Done so far,
Terry