586,103 active members*
3,746 visitors online*
Register for free
Login

Thread: feeds and speeds

Results 1 to 3 of 3
  1. 08-28-2007, 07:02 PM #1
    porkchop21
    porkchop21 is offline Registered
    Join Date
    Jan 2007
    Posts
    14

    feeds and speeds

    i have a bridgeport torq cut 30 with a dx32 control
    and my ?? is what would optimal feed and speed rates be with a 1 inch carbide cutter on gray pvc my max rpm is 6500

    please no metric coversions

    also what is the calculation so i can figure it out later for other materials

    thanks in advance
    Haas VM3 (new baby)
    Bridgeport TorqCut 30 with a DX32 Control (old stepchild)
    Reply With Quote Reply With Quote
  2. 08-30-2007, 02:23 PM #2
    porkchop21
    porkchop21 is offline Registered
    Join Date
    Jan 2007
    Posts
    14

    help

    can anyone help me out with this one
    Haas VM3 (new baby)
    Bridgeport TorqCut 30 with a DX32 Control (old stepchild)
    Reply With Quote Reply With Quote
  3. 08-31-2007, 01:52 AM #3
    ikneb
    ikneb is offline Registered
    Join Date
    Jul 2007
    Posts
    25
    Aint plastic fun?The formula for feed rate is RPM X IPT X #of teeth.
    as far as IPT for pvc with a 1 inch carbide .005-.01.
    so at 6500 rpm with a 2 flute the feed would be 65.0-130.0 ipm.
    Most tool companys have lists of feeds and speeds, but its mostly in SFPM>
    RPM=SFPM X 3.82 / dia.

    1/2 inch carbide 4 flute emill finishing in low carbon steel.
    300 SFPM .003 IPT
    300 X 3.82 /.5 =2292rpm
    2292 X .003 X 4 = 27.504 ipm
    Reply With Quote Reply With Quote
« Previous Thread | Next Thread »

Similar Threads

  1. Speeds And Feeds
    By John H in forum MetalWork Discussion
    Replies: 10
    Last Post: 12-09-2008, 04:10 AM
  2. Speeds and Feeds
    By wdp67 in forum Benchtop Machines
    Replies: 2
    Last Post: 07-10-2007, 08:06 AM
  3. Speeds & Feeds
    By hector herrera in forum Mastercam
    Replies: 1
    Last Post: 02-20-2007, 09:21 PM
  4. feeds and speeds
    By JpBinc in forum MetalWork Discussion
    Replies: 4
    Last Post: 10-03-2006, 06:48 AM
  5. feeds and speeds
    By lito in forum MetalWork Discussion
    Replies: 4
    Last Post: 03-14-2005, 02:58 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Forum Rules