Solid Carbon Fiber - Composite Cutting Advice needed.

[Ger21]

I'd send an email to Amana and ask them for clarification?
I don't understand how to use the info for that tool.

https://www.amanatool.com/pub/media/...1445372390.pdf

The chart says SFM of 1600-3200. If you use 2000 with their formula to find rpm, I get 30,000.
And if I look at the pic of the tool bottom, I count 16 flutes.
https://www.amanatool.com/48054-b-hi...#feed_rate.tab

If you use 16 flutes in the feedrate calculation, I get 860ipm at 18,000 rpm, which is clearly wrong. Even using 9 flutes would give too high of a number.

[dachopper]

Thanks Ger,

I ignored the calculations at the bottom, because it kind of appears, that they have all ready done the calculations for you...

Ie - they stated an operating RPM of 18,000, they know the diameter and flute number, and they stated a feedrate per revolution, rather than chipload per tooth. so just using the RPM + Inch per Revolution I can see the recommended feed rate range straight away,and you are correct this does not correlate with the " calculated" number if you assume each burr is equivalent to a cutting flute.

I have to wait for some new tools to arrive in the meantime.... I might give them an e-mail.

Nick

[Clive S]

I have to wait for some new tools to arrive in the meantime.... I might give them an e-mail.

Does this chart help: https://www.toolstoday.com/pdf/HP-Fi...peed-Chart.pdf