512,286 active members
2,750 visitors online
Register for free
Login
Page 1 of 2 12
Results 1 to 12 of 18
  1. #1
    Registered
    Join Date
    May 2003
    Posts
    314

    Long threads on swiss

    Is it possible or not to make a single point thread longer then the guide bushing without mismatch on middle of thread.






    Machine STAR SA-12 with sub and a axis
    FANUC 18i-T


    Cut thread for example :

    #10-32 2a

    thread length 2."

    material 303 ss

    Do you know a way to lead-in in the middle of thread

    Tried G76

    First G76 starts before Z-0.0625
    end Z0.4375

    Second G76 starts at Z0.375
    end Z0.875

    and continue till 2"
    --------------------------------------
    Tried G32

    First line G32 lead in \
    second line G32 feed ______
    Third line G32 feed out /


    Is there a parameter that controls G76 cycle to lead in in correct spot



    Thanks

  2. #2
    Gold Member
    Join Date
    May 2004
    Posts
    4519
    Every machine will probably be a bit different. You just have to figure out how much the mismatch is and correct for it in the programming. I would recommend G32 so you can ramp into the thread as you indicated to make a smoother transition.

  3. #3
    Registered
    Join Date
    May 2003
    Posts
    314

    :)

    Thanks

  4. #4
    Gold Member
    Join Date
    May 2004
    Posts
    4519
    I actually have accomplished this, not on swiss though. I did it by hand feeding out and using the tool tip to position the thread at a needed Z location. I was able to run a 1/4"-20 thread on 304 stainless more than 2-1/2" long without using a tail stock on 3 pull outs. I think it was for some kind of adjustment for blood bag agitation machine for use in blood transfusions.

  5. #5
    Gold Member
    Join Date
    May 2004
    Posts
    4519
    Additional thought. If your machine has live tooling and C axis and you can find the appropriate profile milling tool, mill the thread in a single pass.

  6. #6
    Registered
    Join Date
    Oct 2008
    Posts
    108
    We do this in our Citizen L20s all the time. G32 is the command.
    www.atmswiss.com

  7. #7
    Registered
    Join Date
    May 2003
    Posts
    314

    SAMPLE CODE

    Can you post sample code that you are running on your machines.

    Thanks




    Quote Originally Posted by MikeMc View Post
    We do this in our Citizen L20s all the time. G32 is the command.

  8. #8
    Registered
    Join Date
    Oct 2008
    Posts
    108
    Sure............here is the code for the first pass:

    T500(DCMT 3-0-SM)
    M3S1=3000
    G0X0.3365Z0.T5
    G1X0.2965F0.0014
    X-0.016
    X-0.056
    X0.132
    X0.193Z0.035
    G1Z.36
    X.37W.092
    G0X.412T0

    M92
    T300(ISCAR 24 THREAD)
    G97M3S1=2000
    G4U1.0
    G99G0X.412Z-.1Y0T37
    X0.28Z-.1
    G32X.18Z-.01666F.04167
    Z.33
    U.1W.05
    G0X.274Z-.1
    G32X.174Z-.01666F.04167
    Z.33
    U.1W.05
    G0X.269Z-.1
    G32X.169Z-.01666F.04167
    Z.33
    U.1W.05
    G0X.264Z-.1
    G32X.164Z-.01666F.04167
    Z.33
    U.1W.05
    G0X.26Z-.1
    G32X.160Z-.01666F.04167
    Z.33
    U.1W.05
    G0X.256Z-.1
    X.156
    G32X.156Z-.01666F.04167
    Z.33
    U.1W.05
    G0X.254Z-.1
    G32X.154Z-.01666F.04167
    Z.33
    U.1W.05
    G0X.252Z-.1
    G32X.152Z-.01666F.04167
    Z.33
    U.1W.05
    G0X.252Z-.1
    G32X.152Z-.01666F.04167
    Z.33
    U.1W.05
    G0X.412W-.2T0
    M93
    www.atmswiss.com

  9. #9
    Registered
    Join Date
    Oct 2008
    Posts
    108
    ...............and here is the second pass:

    T500(DCMT 3-0-SM)
    M3S1=3000
    G0X0.3365Z.3T5
    G1X.193F.001
    G1Z.67
    X.37W.092
    G0X.412T0

    M92
    T300(ISCAR 24 THREAD)
    G97M3S1=2000
    G4U1.0
    G99G0X.412Z.15002Y0T38
    X.28
    G32X.18Z.23336F.04167
    Z.64
    U.1W.05
    G0X.274Z.15002
    G32X.174Z.23336F.04167
    Z.64
    U.1W.05
    G0X.269Z.15002
    G32X.169Z.23336F.04167
    Z.64
    U.1W.05
    G0X.264Z.15002
    G32X.164Z.23336F.04167
    Z.64
    U.1W.05
    G0X.260Z.15002
    G32X.160Z.23336F.04167
    Z.64
    U.1W.05
    G0X.256Z.15002
    G32X.156Z.23336F.04167
    Z.64
    U.1W.05
    G0X.254Z.15002
    G32X.154Z.23336F.04167
    Z.64
    U.1W.05
    G0X.252Z.15002
    G32X.152Z.23336F.04167
    Z.64
    U.1W.05
    G0X.252Z.15002
    G32X.152Z.23336F.04167
    Z.64
    U.1W.05
    G0X.412W-.2T0
    M93
    www.atmswiss.com

  10. #10
    Registered
    Join Date
    Oct 2008
    Posts
    108
    We do this 5 or 6 times to get the length entire length of the part. This is a 10-24 thread, and a 12-24, or 10-32 is completely different of course, but this should give you the basic idea.
    www.atmswiss.com

  11. #11
    Registered
    Join Date
    May 2003
    Posts
    314

    Program

    Thanks

  12. #12
    Registered
    Join Date
    May 2003
    Posts
    314

    1 st try

    First try no luck.
    Attached Thumbnails Attached Thumbnails 4444.jpg  

Page 1 of 2 12

Similar Threads

  1. Replies: 5
    Last Post: 10-31-2012, 02:44 AM
  2. swiss needs
    By BILL WRIGHT CCR in forum Employment Opportunity
    Replies: 0
    Last Post: 08-17-2011, 08:31 PM
  3. Replies: 15
    Last Post: 04-14-2011, 05:33 PM
  4. Hello from SWISS
    By olsti in forum European Club House
    Replies: 0
    Last Post: 05-12-2010, 07:15 PM

Posting Permissions

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