Re: [CAD_CAM_EDM_DRO] machining ballscrews

Carl,
Yes, this is one way to do it. But how are you going to machine it after you grind it if you don't have a lathe? Also I would
be worried about getting abrasive junk down in your machine.
I had a discussion with an Engineer at BSA about this. You have 4 choices (maybe more)
1. Machine it hard (not my first choice)
2. Anneal the ends (lots of people can do this or you do it yourself)
3. Grind through the hard layer. According to BSA you will find Rc60 to at least .040" below the root diamter on 5/8" and larger
screws.
4. Pay BSA (or other party) to machine ends to your specs.
Good luck.

carlcnc@... wrote:

> Howdy
> I recently acquired a nice mill[Kasuga] and am wondering if anyone
> has tried this:
> Use a small lathe mounted on the mill table [maybe just the
> headstock] to hold and slowly turn the screw while grinding the end
> with apropriate cup wheel mounted in the mill spindle. I can run my
> spindle up to 10k rpm with inverter for short periods.
> I don't own a lathe and machinists that I have do end-machining
> always remark/complain about the hardness of screw .
> I was thinking up alternatives.
>
> Carl
>
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