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  1. dnshift

    CTE of different shapes of 4130

    Thanks. We had a failure and are trying to get some ideas as to why. Bonus question, if said rings were to have an interference fit to the rod, what would be a good number to grind them to? I am thinking .002-.003, but am concerned the rings might crack under the stress. Is there a way to calc...
  2. dnshift

    CTE of different shapes of 4130

    I have a cylinder that I am working on that has pretty tight tol. and I am questing the basic design. Picture a 8.0000 diameter x 6.000 solid double acting piston with a rod diameter of 6.000 in an 8.0005 cylinder with 6.0005 bearings. In order to reduce the hydraulic working area of the...

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