Re: chipload

--- In CAD_CAM_EDM_DRO@y..., Jon Elson <elson@p...> wrote:

> Chip load is generally the thickness of the chip, and is

approximated in practice

> by the "feed per tooth". So, if a 4-tooth cutter is turning at

1500 RPM, and

> the feed is 15 IPM, then you have a feed per rev of .01", and a

feed per tooth

> of .0025". Small end mills may use a feed per tooth of .0007", a

1/2" end mill

> might use .005" feed per tooth on aluminum, for instance.
>

Does not the width of the tooth (saw) plays a part too? Or the depth
of cut of the milling cutter?

For example, if we have a case of a cutter with a specific chipload
of say, 0.0025" at a particular feed. Now we use a cutter with double
the width (or double the depth of the milling cutter) if chipload is
express as a linear dimension, there will be no change in chipload
although my feeble mind tell me that the power requirement (or
something else) will change. So if we calculate the feed rate based
on a specific chipload (linear dimension) that feed rate will be
independent of cutter thickness/depth, which doesn't sound reasonable?

Keongsan