when cutting glass, add water. Why?

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paul.fr

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when cutting glass, add water. Why?
« on: 27/07/2007 21:57:49 »
Ever tried cutting glass? Quite hard isn't it. So why does the addition of a bit of water as you cut, make the process a whole lot easier?

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Offline lightarrow

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when cutting glass, add water. Why?
« Reply #1 on: 27/07/2007 22:11:13 »
I don't know the details of the process, but I would say water is added to cool the cutting (a lot of heat is generated because of friction) and to weaken the bondings inside micro crackles in the glass, to make it break more easily.