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  • Congratulations MintJulep on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

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  • Users: personXY
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  1. personXY

    Many Failures In Manufacturing

    Thank you.
  2. personXY

    Many Failures In Manufacturing

    Thank you all for the helpful replies.
  3. personXY

    Many Failures In Manufacturing

    unclesyd I already have problems identified but I need solutions to them. For each of them I need few (it can be up to four) solutions - what should be done so this failure won't occur again. So I need preventive and not corrective solution. If I had just one failure and needed solution, I...
  4. personXY

    Many Failures In Manufacturing

    MintJulep there is no forum on this site listed in menu, no members with contacts listed also. Any other ideas? I have contacted countless of cold heading and thread rolling companies but no respond. Been working on this for months.
  5. personXY

    Many Failures In Manufacturing

    Dear everyone, Question. I have opened some topic about bolts/screws (cold heading and thread rolling only) manufacturing already but this is a bit different question. I noticed that on this forum isn't allowed to say contact details (messengers, e-mails,..) but could anyone please point me to...
  6. personXY

    Tempering + quenching

    If I use the term "quench hardening", can this be also named as "austempering"? Of course quench hardening / quenching and tempering / austempering (?) is different process compering to tempering.
  7. personXY

    Tempering + quenching

    Hola If I was native English speaker, I for sure wouldn't need to open this topic. Actually I have simple question. I search for engineering term. The one that is meant as process of thermal/heat treatment and according to google, which I believe is for sure correct, the description of this...
  8. personXY

    Thread rolling DIES

    Hmm no idea what you mean. However I see you don't know the answer so its two of us already.
  9. personXY

    Thread rolling DIES

    what do you mean? I don't eat corn flakes. I like some other milk food but not corn flakes.
  10. personXY

    Thread rolling DIES

    For unknown reasons, I am a bit sceptical if the following numbers are approximately correct and I would like to ask if anyone can take a look at them and let me know if they are approximately correct or not. Also I have some questions near few numbers for production rates: Movements of...
  11. personXY

    Thread rolling DIES

    Thank you TVP. Are there any suggested toughness for both materials, workpiece's (bolt) and die's, too? Sure there is two different types of toughness but since we are talking about thread rolling dies, its probably fracturing toughness and not "punching" toughness, right?
  12. personXY

    Thread rolling DIES

    Hi I have a general, theoretical, questions for thread rolling dies. Only thread rolling, NO cutting. I would like to know what is, from theory point of view, hardness of material (steel) of dies for thread rolling? I have found information that hardness should be maximum 32 HRC but this data...

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