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Random Thought Thread

In a pensive moment rarely captured on film, Nathan quietly reflects upon the demise of the KIA...

tesla.jpg


"And this is exactly why I should have stayed with the damned Japanese models..."
 
You don't run coolant when milling steel with modern carbide unless you can't hit the SFM needed to prevent BUE, or when you need to flush chips. Otherwise, steel is done dry when possible, the carbide holds up better and you can run it faster. No, to me the truly painful part about that video was the painful lack of positive geometry inserts in those shell mills. Your cuts should be pretty quiet, it should not sound like dubstep. I'm guessing that particular setup could never be particularly rigid and negative inserts hold up better, but that didn't sound "good".

That said... That is the most insane "billet" part I've ever seen. Turning that taper with a boring head was pretty cool.


Cycle time on a part like that would be many hours and possibly days. That part is probably worth $30,000 and the machine is millions, so it probably doesn't run unattended, someone would want to keep an eye on that. Which would be a long, tedious and terrifying day.

Really cool "tool changer".

Actual proper gear hobbing. :thumbsup:

There are a lot of complicated features on that part that would have tight tolerances. Can you imagine after all of that, one of your bores was out? Or those splines were a little off? holy shit. Nope.
 
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