Micro-Machining Help

Results 1 to 2 of 2

Thread: Micro-Machining Help

  1. #1
    Member sarahn27's Avatar
    Join Date
    Jan 2022
    Posts
    3
    Downloads
    0
    Uploads
    0

    Default Micro-Machining Help

    I don't have any experience with micro-machining, and I need to drill some small, deep holes (1/32 diameter, 0.64" deep) in ABS and I'm having some trouble figuring out how to do it. My machine specs are below:

    Model: Acer E-Mill 3VS II Vertical Turret Mill
    CNC Retrofit: 3-Axis Acu-Rite MILLPWR G2 CNC Retrofit Kit
    Max RPM: 4500

    I'm currently using a 1/32" diameter 60 degree spot drill as a pilot hole and countersink, and then following that up with a 1/32" HSS drill. I've been drilling some of these holes manually to test them, but eventually I'll have to use the mill's CNC capabilities, since there are about 100 of these holes in the final part. The issue I'm having is that chips keep getting stuck in the hole, and then cause the drill bit to deflect, which redrills the hole in a slightly different location, at an angle, before breaking.

    Is there a best way to do this? Any tool recommendations would be greatly appreciated. Also what would the best feeds and speeds be for this operation? My mill only goes up to 4500 RPM so that's the max I can do.

    Similar Threads:


  2. #2
    Member awerby's Avatar
    Join Date
    Apr 2004
    Posts
    5728
    Downloads
    0
    Uploads
    0

    Default Re: Micro-Machining Help

    You might try using a peck-drilling cycle instead of trying to do this in a single plunge. Peck drilling involves retreating out of the hole after a short plunge, which breaks the chip and clears the hole, after which you go a little deeper and repeat.

    [FONT=Verdana]Andrew Werby[/FONT]
    [URL="http://www.computersculpture.com/"]Website[/URL]


Tags for this Thread

Posting Permissions

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


About CNCzone.com

    We are the largest and most active discussion forum for manufacturing industry. The site is 100% free to join and use, so join today!

Follow us on


Our Brands

Micro-Machining Help

Micro-Machining Help