Originally Posted by thum31  I found an article on high speed machining yesterday. I changed one of my programs using the formulas recommended and WOW. Cut cycle time from 38 minutes to 8 1/2.
Using a 4 fl 1/4 carbide tiAln I set it up to cut a depth of .625 at 1750rpm at 18.375 ipm. once the part started I had a little squeal so I bumped up the feed to 24ipm.
I will add a link to the article if I can find it. It is really worth the read.
http://www.cuttingtoolengineering.co...12-Milling.pdf |
i read over that article again and gave this technique a try today.
the material was 1018 cold roll steel. i used a 1/2" tialn four flute carbide endmill at 2254 rpm. a .010" radial doc, 1.000" axial doc and 60 ipm. i ran it dry and it performed extremely well. in the about 40 minutes of machine time, i created quite the pile of chips.
i had access to 3 sides of the part so i cut a slot on the side that had no access. once that was opened up, i climb milled around the profile the full depth with .010" step over. the long chips were flying and creating a few large piles of chips. i was nervous at first but soon found myself impressed watching a 1/2" cutter at 60 ipm in steel.
i didn't shove these chips into these piles, that is just where they landed during the machining.
