New to copper need advise Feed & speeds


Results 1 to 3 of 3

Thread: New to copper need advise Feed & speeds

  1. #1
    Registered
    Join Date
    Aug 2009
    Location
    USA
    Posts
    30
    Downloads
    0
    Uploads
    0

    Default New to copper need advise Feed & speeds

    Cutting & drilling 110 copper, good carbide cutters .375 & .5. 2-flutes, No cadcam here programing manual on a brand new HAAS VF2SS from old school paper draftsmen prints. I need help with the feed & speed (IPM & RPM) looking for good tool life as opposed to maxing it out. Main issue is drilling.....getting chips wrapped around drill using carbide TSC drills. Thanks

    pat

    Similar Threads:
    Last edited by patnok; 07-18-2017 at 01:42 PM.


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

    Default Re: New to copper need advise Feed & speeds

    Try using a peck drill cycle, where it backs out every so often instead of drilling continuously. This breaks the chips. Use lubrication with copper, since it tends to be gummy. Here's a speeds/feeds chart: Harvey Tool - Speeds and Feeds Guide | General Machining Guidelines

    - - - Updated - - -

    Last edited by awerby; 07-18-2017 at 04:49 PM. Reason: duplications
    [FONT=Verdana]Andrew Werby[/FONT]
    [URL="http://www.computersculpture.com/"]Website[/URL]


  3. #3
    Registered microcnc's Avatar
    Join Date
    Mar 2005
    Location
    United States
    Posts
    22
    Downloads
    0
    Uploads
    0

    Default Re: New to copper need advise Feed & speeds

    So you are using .375 & .5 endmills, what depth of cut do you want to take and width( side cutting or slotting op)? Then what drills are you using. You'll want to use coolant, and even then copper is one of those fun materials that can cold harden. So interrupted cuts and even wrong rpm can work harden the material in the right condition. You shouldn't have too much trouble with end mills but drilling can be a challenge sometimes, especially if you are going to tap. Use good cobalt drills or carbide and check hole size before you tap. Copper tends to wear the sides of the drills as well as the leading cutting edge which can lead to under sized holes.

    www.pinewoodcnc.com Pinewood derby car solid models & tutorials.
    FaceBook: https://www.facebook.com/Pinewood-CNC-122521675049270/


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

New to copper need advise Feed & speeds

New to copper need advise Feed & speeds