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Completely non-intuitive to me how the polishing of a hole could prevent cracking (and was not done properly). But then reading below how drilling a hole at th
by supernova87a 7y ago
Completely non-intuitive to me how the polishing of a hole could prevent cracking (and was not done properly).
But then reading below how drilling a hole at the end of a crack to prevent it propagating, maybe it has to do with that concept.
- Filligree 7y agoIt doesn't prevent cracking, it removes microcracks that are already there. Martensite may not literally be a hole in the metal, but it has many of the same properties.