Re: [CAD_CAM_EDM_DRO] cutting speed and feed for 3/4" dovetail cutter

Jon your right it was dull and then it snaped.
thanks


--- Jon Elson <jmelson@...> wrote:

>
>
> marble here wrote:
>
> > Sorry all yes I have milled out the pocket first
> and
> > the steel is D2 tool steel only one part is so I
> > thought I should get that done first and the
> cutter is
> > a 3/4 "8 flute
>
> Oh, well the D2 is why you are having a problem.
> You might try increasing
> the speed a little, and the feed a bit more than
> that, to get a good .001 - .002"
> per tooth, at least. What is the shank diameter?
>
> You may have to get a stronger tool, either M-42 or
> some other Cobalt HSS,
> or go all the way to carbide. Yes, I know, a
> carbide tool will be REALLY
> expensive.
>
> You might try to analyze the failed tool to
> determine why it broke. Look at the
> cutting edge under bright light, with a strong
> magnifier. See if the edge is worn
> or chipped. I'm guessing the cutter wore out first,
> then broke due to increased
> cutting forces.
>
> Jon
>
>
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