Thought some of you might find this video of interest. The video shows the CNC machining of an Aluminium Camera Housing - nothing unusual in that. However, interspersed throughout the video, the author has inserted video clips of the End Mill Operation, where the video has been taken with a special camera which provides extremely high frame rates, i.e. what is commonly referred to as "Slow Motion Video".
These macro slow motion shots provide a unique insight into exactly what is happening at the cutting edge of an endmill.
[youtube1]https://www.youtube.com/watch?v=eeHGjr5kvuY[/youtube1]
Enjoy ....
RoyG