Triumphrat

Eggman

I tried to search this, but only ended up w/ electrical results.....................
In a recent discussion, the subject of soldered frame joints came up.
It was in reference to a powdercoater who refused to do a frame because it had soldered joints.
This was discovered by a guy who "decided to grind on what looked like welds, but turned out to be solder, and the tubes began to move around". I'm not positive what year or model it was.

Was this standard practice at any point in the Triumph factory?

Was this an attempt at a "fix" by an end consumer, or a shop?

The subject sounds familiar to me, but I'm short on any real information. If it is the case, the frame I have('59 Thunderbird) has a bent downtube and headstay. I thought it might be a good reason to replace the tubes and weld them in place unless the metalurgy forbids it.

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Coo coo ca joo

Greaser

Do you mean brazed lug frames?

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The picture says 1000 words, I want the negatives.

666Bonneville

i would hope that no one is riding around on a frame that has been soldered together. lashing it together with rope would hold better.

new idea for a 'The Horse' bike!

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Triumph.... Turns an ordinary man into a mechanic.
2006 Scrambler
2005 CRF 450
1977 Bonneville
1973 Bonneville Bobber

Eggman

Could be brazed.........I'm just quoting what was said. I suppose one might mistake a braze for solder if they're not "weld savvy".

Was brazing used?

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Coo coo ca joo

Emanthehorse

Sure was/is.

Here's a new featherbed frame that accepts new Triumph twins.

I'll ignore that remark!

666Bonneville

it was said with love. if you saw my '73 you would understand.

i could only hope to get my bike in your mag....

__________________
Triumph.... Turns an ordinary man into a mechanic.
2006 Scrambler
2005 CRF 450
1977 Bonneville
1973 Bonneville Bobber

panda

I believe all Meriden Frames were induction brazed.. Leastwise they had a quite large induction brazing shop in the early sixties that was by no means 'modern' then. In fact quite similar to the shop in afactory i working in later which induction brazed carbide tips into mining drill bits

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A wise man learns from his mistakes..
A genius learns from other peoples mistakes.

Eggman

Wow............what is the idea behind brazing instead of the ubiquitous welding.

Are these new frames intended to be "correct" by using the brazing instead of welding.

I'm admittedly ignorant on the subject of welding.

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Coo coo ca joo

Eggman

BTW................love the mag!

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Coo coo ca joo

Greaser

They brazed the frames because 1) they used cast pieces at the ehad stock and other joints, 2) electric arc welding was not that far advanced and the British industry was not well known for adopting newer technology's. They had their brazing ovens/furnaces, so that is what they used.

I am not historian on welding myself, but I beleive it was WW2 that the technology of electric arc welding really came of age. Could be wrong too....

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The picture says 1000 words, I want the negatives.