[kwhizz]

Nice finish on the part ( from what I could see ).
What feeds & speeds are you running on the first cutter?
How much stock per pass were you taking off? Were you
running air/oil mist, or just cold air to cool the tools?


Spindle 1650 RPM , Feed 40 Inches per Minute,
Depth of Cut .010 Deep........... Length of cut 1.5"
Modern Technology.....Crazy........It's the Coatings that have been developed that are the Key to this Magic.....these tools have two coatings on them, without the second coating they would fail......Here is how it was explained to me.......The second coating is put on in a thickness relative to the Empire State Building being 1MM (.040) high, the coating thickness would be like a Dime laying on the sidewalk in front of it.......The Crazy thing is that almost all the heat leaves with the chip, after machining the part is just mildly warm to the touch.....The Cutter cost about $175, and we did about 60 pcs with absolutely no change in size.......we had to hold +/- .0002 which was no problem........Can't deviate from the manufacturer's Speeds and Feeds....the first time we ran this part this way , as the Tool comes into the part you just stand back and wait for the crash because it go's against everything we have learned in the Past....Pretty Cool.......We ran with just air blowing on the Cutter to clear the Chips

Ken