Pass me the plasma cutter...
Material that cannot be cut would make the ultimate bike lock
Engineers have created the first artificial material that effectively cannot be cut, holding out the promise of lightweight but cut-proof bike locks, security doors and protective clothing
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FeralCatMan Unusual disease collector., Tue 21 Jul 2020, 23:59,
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Indeed...
Whilst it may be resistant to mechanical cutting, its constituent materials are unlikely to resist thermal cutting.
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Happosai _,,,,_(O ; o)_,,,, Wed 22 Jul 2020, 0:09,
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I wouldn’t be so sure.
The ceramic component likely won’t be affected by the heat from a gas axe, and you can’t cut aluminium with one because aluminium oxide has a much higher melting point than the metal does.
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jonbob loves you, Wed 22 Jul 2020, 11:12,
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A plasma cutter will cut aluminium
But the jet is likely to be disrupted by the ceramic making deep cuts impossible.
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tarka_dall Like normal dall, only a bit more spicy, Wed 22 Jul 2020, 11:47,
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It will matter a lot how thick the panel is.
If all else fails, try gallium.
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FeralCatMan Unusual disease collector., Wed 22 Jul 2020, 13:59,
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what about if you make a saw out of it?
also, there are quite a few materials that are beyond the ability of regular anglegrinders to cut, but they are prohibitively costly
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cumquat may will not be commenting further on the allegations, Wed 22 Jul 2020, 0:42,
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If you mean to saw itself, I guess heat buildup would cause it to blunt and bind.
Clickbait headline really, wouldn't mind some to play with though.
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FeralCatMan Unusual disease collector., Wed 22 Jul 2020, 1:01,
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you could manufacture it into balls and make an indestructible bean bag
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cumquat may will not be commenting further on the allegations, Wed 22 Jul 2020, 1:13,
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Carbon fibre and kevlar cover with a manganese steel zip.
A (large bubble size) electric guitar body would look awesome.
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FeralCatMan Unusual disease collector., Wed 22 Jul 2020, 1:29,
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In the video, the blade goes into the metal
And from the text, once it is inside the metal - that's when it blunts the blade. So it seems to be soft under pressure, so probably wouldn't be able to saw. It's most likely flop apart.
For a lock, how thick would it have to be to protect the lock mechanism? Would you actually benefit weight-wise?
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gaijintendo Regular Member, Wed 22 Jul 2020, 7:48,
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It blunts because the ceramic spheres are in two layers just below either surface
I doubt we’ll see it used in locks because it’s really, really expensive to make.
More likely it’ll be used for armour; foamed metals without ceramics are already pretty good against bullets.
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jonbob loves you, Wed 22 Jul 2020, 11:15,
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We can only hope
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evil_andy Stick stick stick stick sticky sticky stick stick, Wed 22 Jul 2020, 8:06,
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cuts bit of bike frame out, removes uncuttable lock, replaces bit of bike frame
(, Wed 22 Jul 2020, 10:23, Reply)
Cutting through a tube would only be useful if you're intending to strip the parts off the bike and ditch the frame.
Once damaged aluminium isn't cost effective to repair, as I found a few years back (unless you are able to do the work yourself). Whereas steel sounds like a piece of piss to find someone who can repair it.
(, Wed 22 Jul 2020, 23:33, Reply)
If lockpicking lawyer has taught me anything, it’s that it’s the lock mechanism that’s the weakest point. If you have the time to angle grind then you have the time to deal with the lock.
(, Wed 22 Jul 2020, 11:29, Reply)