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Machinest Handbook lookup request (Pleeeeze)
In article ,
says...
In article , Fdmorrison says...
I'm no engineer, and only an amateur machinist.
Often amateur machinists a) have a better intuitive grasp
on the issues than 'real' engineers, b) know enough to
look stuff up when they know they *don't* know the answer,
and c) have open minds.
My problem with this is, if there is a taper-thread-induced concern with "pipe"
thread, why not disclaim its use for vertical holding whatsoever, rather than
go into guesses as to the possibilities?
That is pretty much what others have said on this thread
before. Pipe threads are not spec'd for tensile strength
but facts are this widget is already built.
The argument that tapered pipe threads are not intended to
carry a tension or compression load is nonsense. (I don't
mean to imply you said this, Jim.) If there is pressure in
the pipe, then there is an axial force on the joint equal
to the pressure x area of the pipe ID.
Ned Simmons
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