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  1. A

    Burnishing Counterbore face

    We were provided a 4 flute tool by our customer to try after we struggled with the 2 flute and we still got about the same results for finish and consistencies of tool life. To your second point we do have it mounted in the shortest holder available and the tool is sucked up in the collet as...
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    Burnishing Counterbore face

    We initially tried to get away from using the custom ground 2 flute and attempted to use a burnisher endmill from Fraisa but unfortunately the test part was rejected becasue the customer could see tool marks after the burnish caused by interpolating the endmill.
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    Burnishing Counterbore face

    do you have any good resources on how we would determine a range for our pre finish, or is it just trial and error?
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    Burnishing Counterbore face

    yes these are custom 2 flute cutters ground flat, we also seem to get good results when grinding off the second flute and just letting one flute do the cutting.
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    Burnishing Counterbore face

    It is being roughed out with a 6mm end mill which interpolates the counterbore leaving .01 on the floor. Then we have a 2 flute cutter which cleans the remaining .01 and that plunges straight down. with a .4 sec dwell. then finally the burnish tool comes in to finish. Also the burnished finish...
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    Burnishing Counterbore face

    We are burnishing to achieve a number 8 finish and burnishing also work hardens our parts. Essentially we are creating a leak proof seal that will let no more than a couple part per million of helium through per year.
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    Burnishing Counterbore face

    Hangsterfers 5080 coolant running anywhere from 16% - 22% concentration. Our DM2 has no coolant filters on it besides what comes with the machine, and we also run these parts on our Robodrill Plus K which has a 5 micron filter added on and we see the inconstancies on both machines. Also we...
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    Burnishing Counterbore face

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    Burnishing Counterbore face

    Hello, We have a custom burnish tool from Cogsdill made to burnish the face of a .440 diameter counterbore with a .281 through hole in Stainless 316L. We have been running these parts for a little over a month and we are having a very difficult time getting consistent finishes. The burinsher it...
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    HAAS ST 25 - G76 Threading Cycle

    Thank you very much we will be trying this first thing Monday!
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    HAAS ST 25 - G76 Threading Cycle

    The tool we are using is designed to pulled from back to front, but if we cant figure anything else out then we will more than likely be redesigning the tool and starting at the front. Thank you very much for your feedback!
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    HAAS ST 25 - G76 Threading Cycle

    Hello, I am looking for some advice here. I have been trying to rifle a 3in barrel on a HAAS ST 25 using a G76 threading cycle with a 16in lead. This is a sample of the code \\ (TOOL - 8 OFFSET - 8) (3D LATHE TOOL-7 INSERT - INSERT) G00 T0808 G18 M8 G97 S10 M4 G00 G54 Z.0439 X.344 Z-3. G76...

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