[TheForge] Die question

Tue Feb 12 06:42:00 2002

----- Original Message -----
From: "Michael Boettcher" <[email protected]>
To: <[email protected]>
Sent: Monday, February 11, 2002 10:58 AM
Subject: Re: [TheForge] Die question

> Use the size of the die.  Ex.1/2" rod for 1/2" threads.  Its not
listed,
> since each die tells you what to use.

Pretty much so. That Machinery's Handbook (again) gives the major and
minor diameters for all sizes and threadings of screws. The major
diameter usually ends up just a touch under the nominal size in most
cases. (Dependung on the thread engagement you want.) The minor diameter
is the diameter at the bottom of the threads.

BTW: Helps a lot to turn or grind a very slight taper or chamfer on the
end of the rod you're threading if you use a die.

Can anyone tell I just recently got a small lathe and have been fooling
around making some threaded pins for  things on wheelchairs? :)

>
> At 10:11 AM 2/11/2002 -0500, you wrote:
> >Thanks for the info on the Taps.
> >
> >How do you size the rod for a certain die to make a bolt?  I must be
missing
> >somethin (Know you can't believe it) here as all the Tap and Die
charts I
> >can find on the web or in my books actually say nothing about dies,
just
> >what size drills to use for taps.  I've been able to make a bolt by
just
> >sort of picking a die that seems to work on a rod from my pile of
round
> >stock,but seem to remember that its very specific what size rod is
used with
> >each die.
> >
> >Any help appreciated.
> >
> >Jeff Valentine
>
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