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  1. foglght4

    Simple crush washer

    The problem exists due to bolts being out of DIN spec and leakage occuring. Now we are being asked to revisit some calculations that haven't been done in a long time. While it is annoying, I gotta get it done. Just part of the job sometimes. I am struggling with the yield strength. The copper...
  2. foglght4

    Simple crush washer

    Unfortunately, this is a system I can't change (oem production). I just got stuck with a calculation that hasn't been done in over a decade and going back through my old college books not finding much to help me. The other awesome part is that the copper we are using has a varying yield...
  3. foglght4

    Simple crush washer

    Right, I know I have to yield it, but by how much to seal?
  4. foglght4

    Simple crush washer

    I have to use a copper crush washer to seal against coolant. The bolt is an M12x1.5 simple DIN 908 zinc plated bolt. There is a small interference of 0.1mm between the copper washer and the bolt (worst case), where the bolt surface starts to radius. I need to somehow model or calculate the crush...

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