Threading hardened tube?

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small.planes - 30 Dec 2005 21:47 GMT

hi,just a quick question,
how would the collective wisdom cut an external thread into a hardene
tube?

visions of mounting (somehow) dremal with cutoff wheel on lathe cros
slide and engaging screw cutting gears?

any other ideas?

Dav

--
small.plane

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Andrew Mawson - 30 Dec 2005 22:23 GMT

> hi,just a quick question,
> how would the collective wisdom cut an external thread into a

hardened

> tube?
>
> visions of mounting (somehow) dremal with cutoff wheel on lathe

cross

> slide and engaging screw cutting gears?
>
> any other ideas?
>
> Dave

Dave,

What sort of hardness are you talking about? Hardened carbon steels
can be effectively threaded using carbide tooling if your machine is
rigid enough.

AWEM

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small.planes - 31 Dec 2005 14:43 GMT

Im not sure about the hardness, the 'tube' is an airgun gun barrel i
that helps any? Im only assuming its hardened, but as i only have one
havent tried anything yet (files etc), wanted to have a plan first :)
I dont yet have the lathe ill use to do it on, tho it will be
harrison when it gets here, as my unimat is way to small... ;)

Dav

--
small.plane

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Cliff Ray - 31 Dec 2005 16:30 GMT

> Im not sure about the hardness, the 'tube' is an airgun gun barrel if
> that helps any? Im only assuming its hardened, but as i only have one i
[quoted text clipped - 3 lines]
>
> Dave

You will find the barrel isn't hardened. I just cut down and rethreaded
an old Weihrauch for a friend with no problem at all. It cut perfectly
with HSS tools.

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small.planes - 31 Dec 2005 20:34 GMT

:) excellent

well then thats another one to add to the easy todo list for the ne
machine.

Dav

--
small.plane

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Model Forum / General / Models / December 2005

Threading hardened tube?