[SEL] Press Fit Question for the Machinists (OT)

[Rick Rowlands]

Arnie,

Try the forums at www.practicalmachinist.com .  This is where I go when I 
have machining questions.

Rick

----- Original Message ----- 
From: "Arnie Fero" <fero_ah at city-net.com>
To: "Old Engine List" <stationary-engine at oldengine.org>; "Stationary Engine 
List" <sel at lists.stationary-engine.com>
Sent: Wednesday, November 24, 2010 11:15 AM
Subject: [SEL] Press Fit Question for the Machinists (OT)


> Guys,
>
> I'm reviewing a drawing that is calling for a press fit of a small tapered 
> plug into
> a hole.  My gut feel is that the fit is too tight, but I'd really like to 
> get some
> feedback from those of you with more practical experience.
>
> The carbon steel block has a hole that is 0.161" (+.003 / -.000) in 
> diameter.
>
> The tapered carbon steel plug is 0.125" long.
> The small end diameter is 0.158" (+/-.001).
> The big end diameter is 0.165" (+/-.001).
>
> My other thought is that the block that has the hole (and receives the 
> press-fit
> plug) is 0.211" thick.  I'm thinking that pressing the plug (as 
> dimensioned) into
> the hole might bulge the side walls of the hole outward.
>
> Thoughts / comments / suggestions?
>
> Thanks!!
>
> Arnie
>
> Arnie Fero
> Pittsburgh, PA
> fero_ah at city-net.com
>
>
>
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