Calculating Feeds and Speeds for Milling

Are you programming the correct Feeds and Speeds for your Mill?
When programming a CNC many feel like the proper calculations for feed rates and rpm is a bit of black magic. Some use a set value to start from while others simply wing it. Well, it is time to lift the vail.
In this RUclips live event we will explore how to find the best starting point when milling. You will have access to download a speed and feed calculator that will help determine these values. Once a starting point has been established, we will then explore more advanced topics like feed calculation at the cutter edge as well as the all-important chip thinning formula.
So, join me as I host an informative, 30-minute SINUMERIK Live Event, demonstrating these techniques. Can’t wait to see you there.
Download the INCH calculator here
docs.google.co...
Download the METRIC calculator here
docs.google.co...

[@rufustoad1]

WOW you are a god send for a newbie. Have you ever done any kind of tool identification videos? I have received several dozens of new endmills in all shapes and sizes from my grandfather who was a gunsmith but these mills were probably purchased back in the 70's but still brand new. I have used 1 or 2 in my CNC and destroyed them within a few sec. so I am excited to give this chart a test drive. Thank you for helping.

[@MrCNC]

no have not done tool id yet? maybe in the future

[@hamzanawaz7945]

Great and beautiful video sir

[@MrCNC]

Many many thanks

[@toddtomasauckas7710]

Just watch the whole video - nice work - will share with our team

[@MrCNC]

Much appreciated!

[@jash2622]

With the cycle time comparison, you didn't consider that you would be able to significantly increase the surface speed and therefore MRR with the low radial DOC adaptive style. Further, since we don't need huge flute gullys for large chips anymore we can use 5, 6, 7 or more flutes to jack up the feed and MRR even more. As long as the machine has fast rapids that will turn your cycle time loss into a gain. The benefits to a modern toolpath don't end purely on cycle time though either, and the tougher/harder the material the more you will have to rely on modern toolpaths to even get the job done at all. Even for a lot of soft low-carbon steel jobs I've done, the modern toolpaths/tooling still win out if you look at the overall picture even if the pure cycle time may not show huge differences.

[@MrCNC]

Nice

[@jamesrennie2896]

great video

[@MrCNC]

Thanks!

[@ulugbekhojimatov9369]

Very good

[@MrCNC]

Thanks

[@philldonn705]

The metric table has some mistaken cells designated as SFM instead of MPM. Is it possible to provide the password for the document so we can edit it and correct mistakes?

[@MrCNC]

Email me your question [e-mail]

[@yvesgia]

Hi! Where is the Exell file ?

[@yvesgia]

I finally find Thank you

[@MrCNC]

thanks