how to mill angle iron flat on all sides.


Results 1 to 4 of 4

Thread: how to mill angle iron flat on all sides.

  1. #1
    Member matridium's Avatar
    Join Date
    May 2008
    Location
    USA
    Posts
    26
    Downloads
    0
    Uploads
    0

    Default how to mill angle iron flat on all sides.

    I need to mill some 3/8 angle Iron flat on the back sides and at least one of the insides of the bend. the angels is 4" x 4" and 24" long. The outsides needs to be square or perpendicular to each other. the inside part should be parallel to the outside machined surface.
    I was think of clamping the angle upside down to two angle blocks on the milling table and indicating it in, but the surface is really rough and rusty.
    i suppose I can try to get it close and take a shallow cut first then indicate the newly cut surface and re-cut, and then flip the cut surface against the angle plates and star the other side. Another idea I had was to clean up as much rust as i can with an angle grinder and abrasive pad. Then clamp that part to the table, and then mill just the 3/8 edge and then flip that 3/8 edge over and rest it on the table when I clamp to the angle plates, this will at last get me close to fat to table.
    I have not had to do anything like this on the scale so any incite will help.

    Similar Threads:


  2. #2
    Member Tom-AMS's Avatar
    Join Date
    Feb 2012
    Location
    USA
    Posts
    41
    Downloads
    0
    Uploads
    0

    Default Re: how to mill angle iron flat on all sides.

    unless I'm missing something in your description, there's no benefit of taking a skim cut and then re-indicating it - unless you think the part moved during the skim cut. Instead
    select the flattest, smoothest, straightest, surface on the angle-iron and use it as your reference datum. whether it is on the inside or outside of either leg, or even an edge, dial it in and cut it smooth/flat/straight as needed. All other cuts will be registered from it. You may need to place a few jacks to dampen vibration.



  3. #3
    Flies Fast Superman's Avatar
    Join Date
    Dec 2008
    Location
    Antarctica
    Posts
    3110
    Downloads
    0
    Uploads
    0

    Default Re: how to mill angle iron flat on all sides.

    Forget using a vice
    - angle iron outer faces are roughly square, the inner faces can be tapered


    - Clamp to the table ( on blocks ), indicate to be parallel to X axis, this leaves 1 leg vertical, for you to machine both sides
    - Flip 90° to set the machined leg onto blocks.... repeat 1st operation



  4. #4
    Member Tom-AMS's Avatar
    Join Date
    Feb 2012
    Location
    USA
    Posts
    41
    Downloads
    0
    Uploads
    0

    Default Re: how to mill angle iron flat on all sides.

    Superman's method for holding / machining is excellent, no need for angle plate or jacks, and less vibes... however side milling with 4" depth. even with multiple steps, you'll want to choose a tool with as little "stick out" as possible, and that is rigid enough, so it won't deflect.



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

how to mill angle iron flat on all sides.

how to mill angle iron flat on all sides.