I should add that is under controlled conditions with exact jigging, tolerances and brazing technique.
Joe Bender-Zanoni wrote:
> Silver brazing is used for aerospace parts because it is stronger and
> more predictable as opposed to brass brazing.
>
> Joe Bender-Zanoni
> Great Notch, NJ
>
> Kurt Sperry wrote:
>
>> Better in what empirical, quantifiable as opposed to theoretical
>> sense? I
>> understand the theoretical advantages of silver brazing. Is there any
>> measurable or demonstrable objective difference between brass brazed and
>> silver brazed framesets all else equal?
>> Kurt Sperry
>> Bellingham WA
>>
>> On 9/23/05, brianbaylis@juno.com <brianbaylis@juno.com> wrote:
>>
>>
>>> Dale,
>>>
>>> Silver brazing of frame tubes is clearly better for the tubing. The
>>> fact
>>> that brass brazeing doesn't actually distroy the frame is a
>>> non-issue in
>>
>> my
>>
>>
>>> mind. The only people building custom frames with brass are the ones
>>> who
>>> experienced difficulties with silver from improper use early on in
>>> their
>>> experience, and instead of figureing out how to use it decided to
>>> use bra
>>>
>>
>> ss
>>
>>
>>> because it does not require the same amount of care and attention in
>>> the
>>> cleaning and assembly process. That is why factory built bikes are
>>> brazed
>>> with brass; they don't want to take the time to clean and fit the
>>> parts m
>>>
>>
>> ore
>>
>>
>>> precisely.
>>>
>>> Sure, brass works. Silver is better.
>>>
>>> Brian Baylis
>>> La Mesa, CA
>>> Debate? I don't think so.
>>>
>>> -- OROBOYZ@aol.com wrote:
>>> In a message dated 9/22/2005 11:13:52 PM Eastern Daylight Time,
>>> fred_rednor@yahoo.com writes:
>>>
>>> << I might be mistaken but it looks as though Tom Kellog use both
>>> silver
>>> and
>>> bronze brazing rods on this frame. The rear dropout areas appear to be
>>> attached using bronze rod (which "fills" better) whereas most of the
>>> othe
>>>
>>
>> r
>>
>>
>>> joints
>>> appear to have been
>>> done with silver rod. Is that truly the case? >>
>>>
>>> Sure!
>>> Virtually all modern USA custom builders have done that.. the brass
>>> fills
>>> the
>>> big voids at the drop out ends and, the theory goes, is less of a heat
>>> issue
>>> there cause the parts are so chunky.
>>> Silver is used the rest of the joints because the gaps are so close and
>>> you
>>> have thin stuff to deal with which, the theory continues, would be
>>> otherwise be
>>> damaged by the higher heat that brass requires.
>>> As you may infer from my phraseology, some pooh pooh all that heat
>>> build
>>> up
>>> stuff and point to the Euro builders who have built a zillion bikes
>>> with
>>> brass
>>> and suffer relatively no failures due to apparent overheating. The
>>> debate
>>> rages on.....
>>>
>>> Dale Brown
>>> Greensboro, NC USA
>>> _______________________________________________
>>>
>>>
>>> _______________________________________________
>>>
>>>
>>
>>
>>
>>
>> --
>> fineartscrimshaw.com http://fineartscrimshaw.com