Denford Software & Machines

We are going to use Brass for our next project. Please give your advice the setting that should we set to machine. i.e spindle speed, speed ..etc

Sorry - it looks like no-one is going to answer !

Here are my thoughts:

Picking the correct feeds and speeds is a bit of a "black art" - I would go for the highest spindle speed you can (4000RPM?), and experiment a bit with the feedrate - program say 200mm/min and the feed override (0 to 150%) will give a good range to speed it up or slow it down.

The surface finish and chipping ability will also depend on how deep your cuts are and the type of tool tip your using

The only way to find out what works best is to give it a try on some old brass bar


Hope this helps in some way

I agree, you probably want to set the spindle speed in manual mode to full speed (4000) then take some manual cuts. Roughing should be good at 2-3mm depth (Diameter) then set the feed to about 600mm/ min and turn down the feed override. Take a cut and turn up the override untill adjust the feedrate untillyou get a good cut. Record the value and then use that in program.


There is a document on the US website

http://www.denford.com/USAHOME.htm

Go to SUPPORT then FEEDS & SPEEDS.

This covers milling feeds and speeds but is relevant