Re: [CAD_CAM_EDM_DRO] Machining Ball Screws

Steven Ciciora wrote:

>How do you guys machine ball bearing lead screws? Over the past several
>years I've read about people turning it on a lathe with carbide tools,
>grinding off the hardened layer, heating up the end to be machined to
>soften the hardened layer, and shrink-fitting it on to a piece of machined
>steel, with sometimes welding it on when done. Now it's time for me to
>give it a try. I'm about to order some 5/8" Thomson Saginaw screws from
>Reid tool. I have an enco 9"x20" lathe, but they are notorious for
>flexing, so I'm not sure if it will be up to the task of machining the ends
>down.
>
>

I've done this on an Atlas 10" lathe, so it isn't that tough! But, it
makes a MUCH
nicer job if you use a toolpost grinder. You can cut it with sharp
carbide tools,
and then finish the diameter and thrust faces with a Dremel held in the
toolpost,
if you don't have a real grinder.

Jon