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Can you cut through steel with a wet rope?

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Ariel Badger
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PostPosted: 20:05 - 11 Oct 2009    Post subject: Can you cut through steel with a wet rope? Reply with quote

Given a bit of time you can
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Alexio
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PostPosted: 20:11 - 11 Oct 2009    Post subject: Reply with quote

Although, if the ropes are wet I also would suspect that a layer of rust is forming each time and then subsequently removed the next time the rope is placed in the ever widening grove.
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colin1
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PostPosted: 20:37 - 11 Oct 2009    Post subject: Reply with quote

I doubt there was much time for rust to form, when those grooves were made.

Here is water jets cutting steel.

https://www.youtube.com/watch?v=d1YjqouRDVo

https://www.youtube.com/watch?v=M9hAM68K9OU
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Ariel Badger
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PostPosted: 21:02 - 11 Oct 2009    Post subject: Reply with quote

Thanks Colin, very interesting and of course the same principle. It is neither the water or the rope that cuts but the grit ithey pick up.
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stinkwheel
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PostPosted: 21:07 - 11 Oct 2009    Post subject: Reply with quote

They cut blocks of jade using a bow saw with a blade made of string and carborundum powder.
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Pete.
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PostPosted: 21:23 - 11 Oct 2009    Post subject: Reply with quote

I suspect that handrail is actually cast iron - much softer than steel to cut.

Wal is correct about the waterjet cutting the work is done by garnet suspended in the water - the water is just a carrier medium.

I do a lot of wire sawing to cut concrete. The kit we use is a very high strength carrier cable on which are fixed steel round beads coated in industrial diamonds. Very effective at cutting almost anything. Very early versions of this were done by rope which had grit bonded to it by glue. Here's some stuff I've cut:
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MattHirst
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PostPosted: 22:09 - 11 Oct 2009    Post subject: Reply with quote

colin1 wrote:
I doubt there was much time for rust to form, when those grooves were made.

Here is water jets cutting steel.

https://www.youtube.com/watch?v=d1YjqouRDVo

https://www.youtube.com/watch?v=M9hAM68K9OU


That is a common misconception.

As geri said, 'waterjets' used to cut steel are infact abrasive jets. The water is used as a coolant agent and to carry the 'grit', or the abrasive which is used.

Waterjets (where just water is used, not abrasive) are used generally where contamination could affect things, such as the food industry. They also cut things like plastic, wood, very sold metals and stuff like that.
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Pete.
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PostPosted: 22:16 - 11 Oct 2009    Post subject: Reply with quote

And concrete.

Water alone cannot cut through metals like steel in any reasonable timeframe.
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Tristan.
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PostPosted: 22:32 - 11 Oct 2009    Post subject: Reply with quote

fucking hell Geri, whats the first one for, a supervillains lair?
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ms51ves3
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PostPosted: 23:13 - 11 Oct 2009    Post subject: Reply with quote

Tristan the wrote:
fucking hell Geri, whats the first one for, a supervillains lair?


To hide the children.
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MattHirst
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PostPosted: 08:07 - 12 Oct 2009    Post subject: Reply with quote

You get to a certain thickness and a plasma cutter will probably be more efficient, although with any type of cutter, the thicker the material then you will get a tapered edge (as the water/abrasive, plasma jet or whatever you are using will wander and 'deflect').
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