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Thread: CIRCULAR INTERPOLATION QUESTION

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  1. 02-05-2013, 10:35 PM #1
    colby2000
    colby2000 is offline Registered
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    Question CIRCULAR INTERPOLATION QUESTION

    I'm circular interpolating a .1615 dia. hole .400 deep in brass using a .125 end mill. Could someone look over my code. Working pretty good but having some chatter issues. Running Citizen L-20


    PROCESS 11 CONTOUR_0.094)
    N7
    G19 G0 X0.5
    Y-0.018 Z0.401
    G1 X0. F6.83
    G41 Z0.391 F13.65
    G3 Y0. Z0.382 R0.009
    Y0.036 Z0.4 R0.018
    Y0. Z0.418 R0.018
    Y-0.036 Z0.4 R0.018
    Y0. Z0.382 R0.018
    Y0.018 Z0.391 R0.009
    G1 G40 Z0.401
    G0 X0.5
    /B9 (HIGH PRESSURE OFF)
    G50 W0.59 (CANCEL OFFSETS)
    M60
    G0 X0.9 T0
    M1

    G99 G40 G18 M60 (CANCEL MILLING)
    !L10
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  2. 02-07-2013, 09:31 AM #2
    Algirdas
    Algirdas is offline Member
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    circular interpolation

    what kind of chatters? can you illustrate?
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  3. 02-07-2013, 05:05 PM #3
    txcncman
    txcncman is offline Gold Member
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    You probably are having chatter because your end mill diameter is so close to your finish hole diameter. Try switching to a smaller diameter end mill (if you can find one with enough effective cutting length). Any particular reason you want to end mill and not drill and ream?
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