Recent content by srosendal

  1. S

    External Torque-Force Relation of Bolt

    Great thanks for the reply and the tips on design. I have some constraints regarding changes in the design, but I thank you for the inputs, and I will consider them. I guess in this case that it is the friction between bolt and thread that is of greatest concern and the pitch is almost...
  2. S

    External Torque-Force Relation of Bolt

    My attempt is currently to use T = F * K * D T = Torque F = Force K = Friction coefficient D = Diameter of bolt But my current understanding of this formula, is that it calculates the internal force of the bolt (as to estimate whether the bolt will break) - therefore I'm not sure if it will...
  3. S

    External Torque-Force Relation of Bolt

    Hi there everybody I have a nice little problem which might not be so complicated after all. I need to push a heavy object using torque applied on a bolt. This is done manually, and the necessary torque needed is of interets. The attachment explains it quite well, I think. To overcome...
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    Design preperation for metal molding

    Hello everybody I have designed two small metal pieces (approx 30x30 mm) currently in 3D design that I now want to prepare for production by casting/molding. They are both intended for mass production hence price is a big concern, even the very small designchanges that may lead to reduction of...
  5. S

    Bolt dimensions In plate bending

    Hi It is exactly that case I would like to calculate, but the thing is that I have to estimate the force P (from this example) from the force that I apply vertical on the plate (and not in the shear direction as in the example).
  6. S

    Bolt dimensions In plate bending

    Hey I have this plate, and as you can see it has 4 bolt connections and no other. When applying the load bending will occur in the plate. I am interested in making the diameter of bolt as small as possible. My problem is though that I only can see the shear forces in the plate. How can I...
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