Does a metal blade get sharper when it’s cold?
Metal contracts when it’s cold, would this cause the edge of a metal blade to become thinner, and thus sharper? If it does, I suspect the change in thickness of the edge would essentially be negligible, is this true?
While to some degree the contraction would make it sharper, I think you’re definitely right to say that the difference would be completely negligible. The only time the difference is noticeable would be during the change in state from hot liquid metal to solid metal. Once it’s solid, the amount it would contract with the cold would be inconsequential.
Amon Amarth – “The Pursuit of Vikings” Metal Blade Records
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