Opensource (and online) Feeds and Speeds Calculator (developer owns/uses a Tormach 770) 2. Cheapest CNC Mill for Cutting Aluminum. Submitted 2 years ago by throwawaycsintern. You're better off with something like an X2 or Grizzly G0704 which are built as milling machines versus the ebay mini-routers. My X2 made parts in everything. Aug 07, 2013 I have limited experience with 1/8' end mills, but I'd start at about 16 ipm and no deeper than.050' depth of cut. I find that the smaller endmills I can't push past about 10% of the diameter per tooth. Better make sure you have some lubrication and air blast to get the chips out of the pocket.
Feeds and speeds for aluminum milling
Feeds and speeds for aluminum milling
I'm using the following feeds and speeds for milling alloy 6061 and Fortal (7075) aluminum plate, bar and billets..
0.250' dia x 2-flute end mill...........15 ipm x 2500 rpm
0.500' dia x 2 flute end mill............8 ipm x 1250 rpm
Endmills are center-cutting TiCN coated HSS
Spindle motor is rated for 3600rpm/3HP w/2-speed gearbox. Am using an inverter for continuously variable speed control between 50-3600 rpm.
Am contrmplating the need to mill relatively large (for me) components from blocks of materials, say 3' x 6' x 14' blocks. These components took quite a while to mill the first time around at the above.
I have not yet tried using roughing mills for initial stock removal, though this seems an obvious thing to try. Seeems logical that an objective should be to remove the most material at powers close to the rated spindle motor power. Can also try carbide tools, but have hesitated doing so since first attempts 2 yrs ago resulted in lot's of broken tools.
I'd be most grateful for any recommendations or comments on how I might reduce my machining time.
Thank you.
Best regards,
Tom
0.250' dia x 2-flute end mill...........15 ipm x 2500 rpm
0.500' dia x 2 flute end mill............8 ipm x 1250 rpm
Endmills are center-cutting TiCN coated HSS
Spindle motor is rated for 3600rpm/3HP w/2-speed gearbox. Am using an inverter for continuously variable speed control between 50-3600 rpm.
Am contrmplating the need to mill relatively large (for me) components from blocks of materials, say 3' x 6' x 14' blocks. These components took quite a while to mill the first time around at the above.
I have not yet tried using roughing mills for initial stock removal, though this seems an obvious thing to try. Seeems logical that an objective should be to remove the most material at powers close to the rated spindle motor power. Can also try carbide tools, but have hesitated doing so since first attempts 2 yrs ago resulted in lot's of broken tools.
I'd be most grateful for any recommendations or comments on how I might reduce my machining time.
Thank you.
Best regards,
Tom