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Recent content by Rusty55125

  1. Rusty55125

    Cast Aluminum

    I didn't think that this would be the case but just needed another opinion. Here is my reasoning. When the molten material makes contact with the colder mold surface, it may cause the material in direct contact to solidify faster than the core or center of the now new part. Is this enough of a...
  2. Rusty55125

    Cast Aluminum

    I have a cast part with some machined surfaces. Is the act of machining the part, other than the obvious removal of material, weakening this area. Is there some kind of surface hardening that has taken place during the simple pour operation? I know there isn't much information but I am just...
  3. Rusty55125

    Thread callout

    What is the correct way to call out a thread for the inside of a bored hole and it's threaded mate. I need to join two components with a fully threaded stud. The hole in the mating parts is 2 inches inside dia. Or is there a std straight thread that I can use? Do I use the pitch diameter as the...
  4. Rusty55125

    Thermodynamics of a Box

    Does anyone have a simple equation to calculate the steady state temperature inside a box knowing the insulation qualities of the box, the initial temp, surrounding temp as well as the heating source? I am trying to do a rough calculation on what temperature will be achieved inside this sealed...

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