RE: [CAD_CAM_EDM_DRO] Speeds and Feeds

Feed is based upon the chipload per tooth of the cutter. So if you calculate
out the chip load you will find that your numbers are correct. I will warn
you that many of these speed and feed programs give you values that are
appropriate for rigid machines with quality cutters. Suggest starting your
feed lower and seeing what you Sherline can handle. Your Mileage May Vary.

Tim
[Denver, CO]

> Hi all,
>
> I have been working out some speed and feed data for my Sherline 5400
> mill. Mr Machinist tells me that I need a spindle speed of 6112 for a
> 3/8" 4 flute end mill with a feed rate of 24 IPM on aluminum.
>
> The Sherline is capable of 2700 rpm on the spindle so I assume that
> since the spindle speed is about 44% of the desired speed of 6112 rpm
> that my feed rate should also be 44% of the recommended feed rate
> which would be about 10 or 11 IPM.
>
> Are these assumptions correct?
>
> Thanks in advance
>
> John Guenther
>
>
> FAQ: http://www.ktmarketing.com/faq.html
>
>