[TheForge] shrink fit techniques

Fri Feb 1 11:15:11 2002

I use .001" per inch diameter for a shrink fit. Make your hole smaller
than the pin by this amount. You don't have to quench ,the metal will
contract and hold. For a 1" pin use a hole .999.I have used this on
bigger items like saw collars shrunk on a shaft. Bob
----- Original Message -----
From: "RW" <[email protected]>
To: <[email protected]>
Sent: Friday, February 01, 2002 9:14 AM
Subject: [TheForge] shrink fit techniques


> I'm having varying degrees of success attaching metal parts together
by the
> use of drilled holes filled with metal dowels using heat and a quench
as the
> "adhesive".  If I heat 1 1/2" solid and insert a cold 1/4 or 3/8"
dowel and
> quench, the result is a tight secure joint.  But when I insert this
piece
> (cold) into another  "hot hole" and quench, the second joint is not as
tight
> as the first joint .  I really like this approach for many
applications and
> would like to perfect the "shrink fit technique".  Any knowledge and
> experience with this technique is most welcome and appreciated.
> RW
>
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