Re: Waterjet on a cnc knee mill - water pump ?

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Steve Haushahn"
<haushahn@c...> wrote:

> Dave
> I suppose you already discounted this idea for some reason- maybe

you talking LARGE gaskets... But if you only needing a hundred or so
and if youre in a hurry why not use ruler dies with some sorta press .

> Steven

I have been cuting them by hand and the corners are not square enough
and all the holes are close, but a machine tool will do a much better job.

I had thought about a knife type punch that would punch out one at a
time, or even a knife type roller that would run long strips and
deliver parts.

But, it seems that I probably could cut them with a high pressure
washer and utilize the accuracy of CNC to make things easier. I don't
have a clue it 1,800 PSI would do the trick though.

Dave

>
>
> I need to cut some hundred or so gaskets of foam rubber.
>
> I think it is 1/4" or so and was wondering if a water only pump could
> do the trick ?
>
> Also, since the stuff is pretty soft, just how low of a pressure could
> do the job ?
>
> And, the real question, is where can one find a low volume, high
> pressure pump for water for such a unit ?
>
> I t looks like common hyraulic house in small diamters can handle
> 5,000 PSI or slighly more.
>
> And, then of course, what diameter nozzle would fit the bill ?
>
> McMaster has orifices rated for 5,000 PSI and are 0.016" dia for the
> small one.
>
> And then of course, with these pressures, will the orifice wear out ?
>
> Dave
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