If one press some steel part into steel hole to get unsplittable assembly, does this operation speed matter? Is it better to hit by hammer, or to slowly jam with vice? Does it relate to steel type (e.g. soft or hardened)?

  • $\begingroup$ Based on your comment about avoiding thermal effects, check out how Joule measured energy based on machining cannon barrels. $\endgroup$ – Solar Mike Nov 23 '18 at 8:41
  • $\begingroup$ @SolarMike I suggest it was Rumford. Anyway I did not understood yet, do thermal effects determine optimal press speed, or not. It was just a hypothesis. $\endgroup$ – Alexander Olikevich Nov 23 '18 at 8:52
  • $\begingroup$ Any idea why we measure in Joules instead of Rumfords? $\endgroup$ – Solar Mike Nov 23 '18 at 8:53
  • $\begingroup$ @SolarMike AFAIK Joule did his measurements with water. He found numerical thermomechanical relation, while Rumford just discovered this phenomena. $\endgroup$ – Alexander Olikevich Nov 23 '18 at 8:56
  • $\begingroup$ Joule based his experiments on Rumford's and sorted the theory which Rumford did not ... $\endgroup$ – Solar Mike Nov 23 '18 at 8:58

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