On Jul 4, 1:02*pm, rw wrote:
On 7/4/10 10:41 AM, riverman wrote:



However, the female end is less clear. Think of a donut (as the female
end of a ferrule resembles a donut in cross-section): first instincts
may say to heat the female end to expand it, but when a donut expands,
the hole actually gets smaller. SO heating the female end may make the
ferrule tighter.

I'm afraid that you're wrong. Heating the female ferrule will cause the
hole to expand. So it's best to heat the female ferrule and cool the
male ferrule.

--
Cut "to the chase" for my email address.

What RW said. Heat the female ferrule. The wall section of the female
has less mass and will expand faster than the male section.