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  1. ldmech

    Polishing a part 3D printed in SLA

    I have also clear coated SLA parts in the past (though it may not help with your original inquiry!) and it also has the advantage of preventing strength degradation and visual degradation of the part long term.
  2. ldmech

    Plastic selection query

    Cheers for the responses guys. Have tentatively looked at PBT (specifically the Crastin range) and its looks excellent. Possibly falls down on the UV stability when adding flammability requirements into the mix. Its just a matter of trawling through numerous datasheets and contacting suppliers...
  3. ldmech

    Plastic selection query

    Hi guys, I'm a mechanical engineer with not a lot of experience in the plastics selection arena! Looking for some guidance and help in working through selecting a plastic. Specifically I am looking for a thermoplastic with the following properties: - Good UV stabilization - good mold flow -...
  4. ldmech

    Worn threaded connections

    Hey Cockroach, sorry for the omission and if I haven't been clear. My main question I have been trying to get across was is there any way calculation in which you can quantify the reduction of the threads locking capacity if you have worn threads, a reduction in the major diameter. I see now...
  5. ldmech

    Worn threaded connections

    Sorry I didn't add in that this was run on wireline, not drill string. There will be rotation of the tool in the well due to unwinding of the wireline from a winch drum, but I have never heard of this being a big problem (yet...). We have used loctite before, but have not needed to consistently...
  6. ldmech

    Worn threaded connections

    Hello All, Good to finally get a post in here...I work in the oil and gas industry and recently some equipment was lost in a wellbore (let me know if there is another forum I should be posting in!). The reason given by the service company for the equipment being lost in hole was that the tool...

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