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Topic: Wear of diamond knives  (Read 463 times)

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Offline pnacze199204

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Wear of diamond knives
« on: December 02, 2023, 01:58:45 PM »
It is believed that if two objects slide over each other or even touch each other there's always a loss of material. I would like to ask then a question about diamond knives used in eye surgery, whose blade thickness is often 50-200 nm. Some manufacturers claim that replacement of such a knife is recommended after 10.000 incisions. So how is it possible that such a blade is able to serve that long when 50 nm is really very little?

Offline Borek

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Re: Wear of diamond knives
« Reply #1 on: December 02, 2023, 04:07:04 PM »
It is believed

By whom?

But it actually doesn't matter what is "believed", what matters is what tests say. If they falsify "beliefs" it is time to change the opinion.
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Offline pnacze199204

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Re: Wear of diamond knives
« Reply #2 on: December 02, 2023, 04:46:56 PM »
I read about it in some book and just quoted the statement.

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