420 SS 40Rc


Results 1 to 11 of 11

Thread: 420 SS 40Rc

  1. #1
    Registered MachineSMM's Avatar
    Join Date
    Mar 2003
    Location
    Minnesota
    Posts
    34
    Downloads
    0
    Uploads
    0

    Default 420 SS 40Rc

    I am trying to cut some 420 SS that is 40 Rc. I keep burning up cutters. Corners keep breaking off.

    I need some help on these issues:

    types of cutters
    speed and feeds
    depths of cut
    programming method

    I would appreciate any help with this.

    Thanks

    MachineSMM


  2. #2
    Registered Rekd's Avatar
    Join Date
    Apr 2003
    Location
    teh Debug Window
    Posts
    1876
    Downloads
    0
    Uploads
    0

    Default

    Hanita Varimill... Mmmmm

    'Rekd

    Matt
    San Diego, Ca

    ___ o o o_
    [l_,[_____],
    l---L - □lllllll□-
    ( )_) ( )_)--)_)

    (Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)


  3. #3
    Registered hardmill's Avatar
    Join Date
    Mar 2003
    Location
    United States
    Posts
    499
    Downloads
    0
    Uploads
    0

    Default Re: 420 SS 40Rc

    Originally posted by MachineSMM

    I need some help on these issues:

    types of cutters
    speed and feeds
    depths of cut
    programming method
    Machine type?
    Control?
    Cadcam?
    Tool Brand?

    This is what needs to be addressed first.
    What do you have?



  4. #4
    Registered
    Join Date
    Mar 2003
    Location
    Utah
    Posts
    214
    Downloads
    0
    Uploads
    0

    Default

    I second the Hanita Varimill... Fantastic cutters. I cut 15-5PH stainless with them. Rockwell 40c . They ate it like butter. Even better when I ruffed the same material annealed it was the only cutter I found that wouldn't burn up and, they are very quiet. Great cutter design.

    Difficult to cut stainless 250-280 SFM
    .0025 chipload per tooth on 1/2 inch cutter.

    Ken

    Last edited by Mortek; 06-17-2003 at 08:55 PM.


  5. #5
    Member JIMMY's Avatar
    Join Date
    Mar 2003
    Location
    united states
    Posts
    201
    Downloads
    0
    Uploads
    0

    Default

    What are you trying to cut?

    (Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)


  6. #6
    Registered MachineSMM's Avatar
    Join Date
    Mar 2003
    Location
    Minnesota
    Posts
    34
    Downloads
    0
    Uploads
    0

    Default

    Sorry, I knew I was forgetting some info.

    We are milling.

    We are making silicone rubber molds that are for the medical field.

    The largest size mold we make is an 8x8.

    Usually the cavity detail is pretty small. I do alot of milling of pockets for cores and cavity inserts. I would like to do some of the finishing work by milling instead of EDMing everything.

    We do all of the cutting on a Haas VF2 with a 10,000 RPM spindle and a high speed control, or what they consider a high speed control.

    I am using Mastercam

    Right now I am trying out some mill monsters TIALN coated. It is not going to well.

    I hope that is enough info.

    MachineSMM


  7. #7
    Registered hardmill's Avatar
    Join Date
    Mar 2003
    Location
    United States
    Posts
    499
    Downloads
    0
    Uploads
    0

    Default How about

    Is it possible to give a little desc. of the cavity?
    Can you post a screen shot of your model?
    Or e-mail me so i can take a look at it and give
    you a hand.

    PEACE



  8. #8
    Registered Klox's Avatar
    Join Date
    Mar 2003
    Location
    NZ
    Posts
    507
    Downloads
    0
    Uploads
    0

    Default

    Please elaborate on Hanita Varimill cutters. I'm an EDM idiot and i'm extremely dangerous when curious!!

    Klox

    *** KloX ***
    I'm lazy, I'm only "sparking" when the EDM is running....


  9. #9
    Registered
    Join Date
    Mar 2003
    Location
    Utah
    Posts
    214
    Downloads
    0
    Uploads
    0

    Default

    The Hanita Varimill endmills also have an edge break on the corners but you won't have corners breaking off. These corners stay sharp and take alot of pressure. http://www.aronson-campbell.com/specials/apr2002.asp



  10. #10
    Registered
    Join Date
    May 2003
    Location
    Vancouver, Canada
    Posts
    84
    Downloads
    0
    Uploads
    0

    Default

    I've had good luck with Iscar's 328 grade milling inserts on all types of stainless including 13-8 PH. I've found that the biggest mistake most people run into is not enough chip load which creates too much heat in the cutting zone. I think it was the RM designated ADKT 1505 inserts that we found to outlast everything that Sandvik, Kennametal and Seco had to offer. These had a pretty sharp ground edge which stopped the work hardening that we got with pressed inserts.

    My advice would be to call the local reps and tell them to bring their best for the job you are doing. You never know......this can start a good battle for pride which could result in some free inserts or something. Good luck!

    Adam



  11. #11
    Member
    Join Date
    Apr 2004
    Location
    Wisconsin, USA
    Posts
    30
    Downloads
    0
    Uploads
    0

    Default

    I would definitly try using the hanita varimills as well I have been using them to cut down a welded surface on a 304 stainless part, and was absulutly amazed by how much material could be removed without having to resharpen the mill.

    sick minds demand sick toys!


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

420 SS 40Rc

420 SS 40Rc