512,515 active members
2,404 visitors online
Register for free
Login

Thread: cnc grinding

Results 1 to 2 of 2
  1. #1
    Registered
    Join Date
    Mar 2007
    Posts
    14

    Post cnc grinding

    Is there anyone out there trying to grind on a cnc mill? I'm experimenting with 2" dia type W mounted points held in a collet and attempting to grind a cylindrical boss. My tolerance on a 3" diameter boss, 3" long, is +/-.0005 diameter with a 32 or better finish.

  2. #2
    Registered
    Join Date
    Mar 2006
    Posts
    2712
    Without really "fine tuning" I doubt a typical vertical mill will reliably hold .0005" tolerance. Is there a roundness tolerance?

    Can you build up the rpm for grinding? It may be possible to do so with a "speeder" or jig grinder attachment.

    What about grit messing up the way surfaces? Could be somehow protected, I 'spose. I know we used to grind on lathes with toolpost grinders, but what a mess!! Oil soaked rags wrapped over exposed surfaces to catch grit etc.

    Is it possible to use single layer plated wheels? Probably that would require an elaborate coolant system.

    The short answer? Probably can be done, but I wouldn't do it. You didn't give much to go on as far as specifications (material etc. and complete tolerances). I'd find a jig grinding source if precision is required.

    Dick Z

    add: check this out http://www.vulcancut.com/vulcanaire.html
    DZASTR

Similar Threads

  1. Grinding
    By krismcneil in forum General MetalWork Discussion
    Replies: 2
    Last Post: 05-03-2007, 02:06 AM
  2. Grinding how to..
    By JerryFlyGuy in forum General MetalWork Discussion
    Replies: 6
    Last Post: 01-19-2007, 05:40 AM
  3. Grinding
    By itsme in forum General MetalWork Discussion
    Replies: 4
    Last Post: 07-23-2005, 08:21 AM

Posting Permissions

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