Hi Steve
Thanks
for the information! This is very helpful!
Charles
--- In CAD_CAM_EDM_DRO@..., Steve Blackmore <steve@...>
wrote:
On Sat, 02 Sep 2006 21:20:13 -0000, you wrote:
I'm wondering how fast a Fadal 4020 can drill a series of 15/16
holes
thru 3/8 mild steel, rectangular patttern, 2 rows of 4, 4"
centers?
I don't have any experience with these machines, but it takes me
about
30-60 seconds per hole manually.
Ignoring that specific machine, my feed/speed tables reckon 2
inches per
minute at 400 rpm, using a HSS .9375 inch drill in mild steel.
Power
requirement for that is .35 HP.
A CNC machine should be able to drill all 8 holes in approx 2 1/2
minutes from start to finish.
Steve Blackmore
--
