Re: [CAD_CAM_EDM_DRO] Cutting speeds

Hi Ian:
You start out with speeds and feeds from sources like "Machinery's
Handbook"
or the speed and feed tables & go from there.
You will quickly get a sense of what a cutter can take. You do this by
breaking cutters!

Cheers

Marcus
-----Original Message-----
From: Ian Wright <Ian@...>
To: CAD_CAM_EDM_DRO@egroups.com <CAD_CAM_EDM_DRO@egroups.com>
Date: Sunday, November 26, 2000 4:12 PM
Subject: [CAD_CAM_EDM_DRO] Cutting speeds

>Hi,
>
>I know this will sound like a really purile question and I'm really aiming
>it at those who do small work on desktop machines but here goes...
>
>How do you decide on an appropriate feedrate for materials and cutters you
>haven't used before? For example, say you were presented with a piece of
>titanium sheet and asked to cut out several identical parts using, say, a
>dental burr - how would you decide on the best feedrate to use or, at

least,

>choose one that wouldn't break the tool or dull its cutting edges? I know

if

>I'm working on my manual lathes or miller that I can adjust the speeds and
>feeds to get optimum performance simply by using my ears and the feel of

the

>handwheels but this isn't possible with a cnc machine as you have to

program

>in a feedrate and then just hope its Ok.
>
>Wise words from the knowing would be greatly appreciated.
>
>Ian
>--
>Ian W. Wright
>Sheffield UK
>www.iw63.freeserve.co.uk
>
>
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