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  1. joshdad

    Transmittable torque with an expanding mandrel

    Before anyone gets there before me. "A M16 bolt has a dia of 50mm and at a 2mm pitch." I know its wrong. What I meant to type is a circumference of 50mm.
  2. joshdad

    Transmittable torque with an expanding mandrel

    Experemental is not an option. This is a one off unit Can someone give me the formula for a frictionless setup. I have a formula based on the combination of an inclined plane replacing the thread and the cone but would welcome someone elses ideas. My biggest worry is the losses due to friction...
  3. joshdad

    Transmittable torque with an expanding mandrel

    I have tried inclined planes to resolve this. The problem I have is that I am also using inclined planes to determine the pullexcerted on the cone by the screw thread. When I factor in friction (because the angle is so small) I am getting wildly different results for small changes in friction...
  4. joshdad

    Transmittable torque with an expanding mandrel

    Wow sarcasm. Asked for help and got that. I knew this site would be helpful.
  5. joshdad

    Transmittable torque with an expanding mandrel

    Can someone help me please. I am trying to calculate the trasmittable torque (expanding force) from an expanding mandrel. The design is essentially a 24 degree (12 a side)cone being pulled toward a fixed blate by a 2mm pitch M16 bolt. The expanding mandrel has 8 jaws that slide up the cone...
  6. joshdad

    Family of parts and File properties

    I would like to have members of a family of parts, enter text in the Document Number of the file properties. Is there a way of doing this.
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