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  1. #1
    Hello dear community!

    We have a problem with the thread turning L97. I hope that somebody can help me out..
    It’s about an internal thread- the machine positions the tool too suddenly- I don’t think it will lasts long this way as we have to produce about 2000 parts a month- so we are looking for a “machine friendly solution”. We have a Siemens 840C controller.

    Is there a possibility to reduce the rapid traverse before the cycle?

    Our cycle looks like this: R20=2 R21=36 R22=-30 R23=0 R24=1.2 R25=0.05 R26=1 R27=3 R28=7 R29=0 R31=36 R32=5 L97 P1

    Thank you!

  2. #2

    Join Date
    Nov 2004
    Posts
    342
    Morning
    The only possibility that I see is that you maybe position with g01 before the thread cycle.
    So G01 x 40 z5 F2 or so...
    Does it jerk before the thread cycle or in rapid traverse in general?

    Regards
    Rücky
    <span style='font-family:Arial'><span style='font-size:14pt;line-height:100%'><span style='color:red'>&quot;Wenn Windows die Lösung ist. <br>Kann ich dann das Problem wieder haben?&quot; </span></span></span><br><br>

  3. #3
    Hello

    It jerks in the middle of the cycle, when it runs free and pre-positions again.
    I have played around with different turning speeds, without success. Even with 800U/min I have the same problem. The material is aluminium- it worked perfectly with external threads also with 1500U/min

    Regards

  4. #4

    Join Date
    Nov 2004
    Posts
    342
    Morning

    Are you processing with or without thread undercut?
    But first of all a general question: what machine are we talking about?

    As far as I know, with Montforts you have an M command that defines how the machine drives out of the gear
    <span style='font-family:Arial'><span style='font-size:14pt;line-height:100%'><span style='color:red'>&quot;Wenn Windows die Lösung ist. <br>Kann ich dann das Problem wieder haben?&quot; </span></span></span><br><br>

  5. #5
    Hi,

    It's a Gildemeister Sprint, year 1997

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