Michael,
I have been looking for some ideas also. I haven't come up with
anything for speeds & feeds, but there are some good ideas in Sandvik's
application guide - die & mold making. I had to send for it.
www.coromant.sandvik.com/US . Maybe some other companies that make cutting
tools have some literature.
I hope this helps some. I would like to find out more about hard milling and
high speed milling, if I knew where to look. Maybe this will spur some
conversation on the subject. I think it has something to do with SmartCam.
We all use speeds & feeds.
Dennis
-----Original Message-----
From: Michael Senack [mailto:[EMAIL PROTECTED]]
Sent: Monday, September 24, 2001 4:16 PM
To: SmartCAM Users Group (E-mail)
Subject: [mfg-smartcam] High Speed Machining
A non SC related question.
We just did our first high speed machining of a top
die shoe. The shoe is made from D2 material and heat
treated to Rc 58-60.
We cut a pocket in it using a 3/16 dia solid carbide end mill
to a depth of .550" using .005" depth of cuts.
We used 300 sfm giving us a spindle speed of 6111 rpm
and a feed of .001" ipr for a feedrate of 6.11 ipm.
The speed, feed and depth of cut was guessed at
after reading a Modern Machine Shop, high speed
machining article from August 2001.
Anyway the program was an absolute success!
What I was wondering was...
Is there any kind of speed and feed recommendations
that we can use as a guide line for high speed machining
hardened materials ?
Also, depth of cuts...is there a formula for calculating
depth of cuts?
We now have to machine a .553" wide by .500" deep slot through
the same top die shoe and this is what I'm going to use.
A 1/2 dia solid carbide e/m using G41 climb milling
300 sfm = 2291 rpm
.005 ipr = 11.6 ipm
depth of cuts = .005"
Is this a reasonable guess?
Any input is welcome.
Regards,
Michael Senack, CNC Programmer
Blount Canada Ltd
505 Edinburgh Road North
Guelph Ontario
N1H 6L4
519 822 6870 X354
FAX 519 822 1450
http://www.blount.com/
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