snipped: StuartMX4@aol.com writes: "Sorry if this is off topic, but I do rather object to being told that "silver soldering" is a term never used by engineers."
stuart the gist of this is that no procedure in bicycle frame making employs "silver soldering". however, it's use as a term in jargon has become (mistakenly) accepted when refering to silver brazing. (% of silver content to be determined...) e-RICHIE chester, ct
On Wed, 12 Mar 2003 15:37:26 EST StuartMX4@aol.com writes:
> I hesitate to stick in my two penn'orth as I am the archetypal
> non-expert... jack of all trades, master of none, but......
> It is too dogmatic to assert that silver soldering is not a
> correct
> term. I have never bought silver solder as anything except silver
> solder. I
> have two small packets in front of me with the legend silver solder
> on them.
> Regarding the lower temperatures, some Morgan three wheelers raced
> pre-war
> had the lugs silver soldered rather than brazed. That may have been
> to avoid
> weakening the tubes but I have always understood that it made it
> easier to
> remove the lugs for retubing or repair. It is impossible to get a
> brazed lug
> off a Morgan; you have to saw it off and machine out the stub of
> tube. I
> think I am correct in saying that accidentally bending a tube while
> brazing
> results in it snapping while with silver solder you will get away
> with it. I
> have to admit that I have never tried to break a tube that way.
> Sorry if this
> is off topic, but I do rather object to being told that "silver
> soldering" is
> a term never used by engineers. How about modifying that to "never
> used by
> twenty first century engineers in the USA?"
> Stuart Tallack in quaint old-fashioned Sussex
> Postscript even more off topic. The large rear chassis lug on a
> Morgan
> tricycle which carries all transmission and rear suspension loads is
> soft
> soldered. It tends to creep round under all that load but takes
> several
> decades to move a few degrees.