Speed & Feed

[kal_pesh]

hello every one i m new here i wont to know haw we calculate speed & Feed for cnc programing i know when we make program mastercam give as speed & Feed but haw we can calculate for deffrance material IS THERE ANY SOFTWERE FOR THIS cau some one help me plz..thnx you

[cadcam]

Review the picture below.

[g-codeguy]

I normally start with the feeds and speeds given in the catalog from the manufacturer of the tool I am using. If I still have problems I can't solve, then I give them a call for additional suggestions.

[MassiveTool]

I just plug it in manually in the tool parameters when defining the tool.

Like a .750 insert cutter.

For RPM I use:
Desired surface speed / dia. cutter * 3.82
ex: 400sf / .750cutter * 3.82 = 2037RPM

Then:

For chip load:
RPM * cutter flutes * desired chip load
ex: 2037RPM * 3flutes * .003" chip load (per-flute) = F18.33 (ipm)

[cadcam]

Now adding to my other posting to this question here is are more option on the fly.
Review the two pictures below.