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Recent content by climbingtech

  1. climbingtech

    Shrink fit

    Thank you 3DDave. With the .003 I can still maintain temper with heat or use nitrogen for the shrink. Going to just run some pulls and be done with it. Appreciate the reply. Going to look into some compounds and see what I can find to compare the two in pull tests.
  2. climbingtech

    Shrink fit

    Mods please delete this thread. Thank you.
  3. climbingtech

    Shrink fit

    mfgenggear, certainly not the case, and you didn’t need to reply to the post or offer any help. I figured it would be a simple question to offer general advice on for most advanced members here, and was looking forward to learning. It’s a starting ball park and will have to undergone specific...
  4. climbingtech

    Shrink fit

    The pressure would be below the modulus of elasticity at roughly 66% its rated value. I don't think what ever little bit that did occur would impact it's overall performance for it's application. If you disagree I'd love to hear your perspective on it. This would be a shrink fit not press.
  5. climbingtech

    Shrink fit

    looks like 0.003 gives a fit of 32 kn at the specified dimensions. Anyone able to corroborate this? Taking fit pressure into the equation Pa = Friction*pi*L*D*(Pc from lames equations).
  6. climbingtech

    Shrink fit

    Thanks for the reply. They're both 7075-T6. I didn't bother since that pressure would be ridiculous for the given material. I thought I'd shoot on the high end of getting them together since I was interested in maximizing the force to prevent it from slipping. I just didn't think that much...
  7. climbingtech

    Shrink fit

    I've run several calculations for a shrink fit and for likely user error reasons I'm getting very high numbers. Looking for a 30-40 kn axial force requirement to break a shrink fit on 7075-T6. I ran my calculations with a 0.007" interference not accounting for surface roughness at a...

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