Re: [CAD_CAM_EDM_DRO] Re: Feed and Speed calculator, what the HECK?

Measuring the chips won't do... As the tool 'cuts' the stock, it actually
pries little slabs of material away from the stock, and these slabs stack
up to make the chip, at a specefic angle with respect to the mat'l being
cut, the cutting angle, the mat'l doing the cutting, etc. Anyways the
measured chip thickness is usually 1.25 to 1.75 times the actual feed into
the cut. I generally try to keep my chip load down to between .0005 to .002
per flute, with less than twice the tool dia for depth of cut (where less
than half of the tool dia is engaged in the cut). When making a full
profile cut, I try to limit my depth to 1.5 times tool dia, mist
coolant/lubricant, and vacuum out the chips continuously!

RayHex

----------

> From: James Stevens <stevens@...>

> I took the recommended chip thickness right out of the Taig manual. If I
> remember correctly, it listed a range of 0.005 - 0.010" so I picked on

the

> low end. This value is one of the 3 blue user inputs (# of flutes,
> diameter, and avg. chip thickness) in the spreadsheet. My understanding

of

> chip thickness is just the thickness of chip that is cut. I assume this
> could be gathered imperically by picking up some chips and measuring the
> thickness. Anyhow, to change it, just type in a new value over the old

one

> and the sheet will update with the new values.
>
>
> James